{
 "name": "Dirtsmith agent tool rate sheet (Gate 1)",
 "version": "2026-10-14",
 "generated": "2026-10-14",
 "disclaimer": "Informational only. Dirtsmith LLC is not affiliated with, endorsed by, or paid by any listed builder. Prices are copied from public pages or public x402 payment requirements on the date checked and may have changed; verify with the builder before paying. Dirtsmith does not sell, resell, broker or process payment for these tools.",
 "count": 21,
 "tools": [
  {
   "name": "AX1 Console",
   "builder_host": "www.ax1.vc",
   "endpoint": "https://www.ax1.vc/api/dashboard/q-verdict/resource",
   "category": "x402 pay-per-call endpoint",
   "does": "Send a Base token contract address, get an AI-written verdict: onchain metrics, a plain-language take, and a s",
   "price_published": "0.02 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 3208,
   "purpose": "Send a Base token contract address, get an AI-written verdict: onchain metrics, a plain-language take, and a s",
   "price": {
    "amount": 0.02,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.02 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "www.ax1.vc",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 3208,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=AX1%20Console"
  },
  {
   "name": "api.onesource.io",
   "builder_host": "api.onesource.io",
   "endpoint": "https://api.onesource.io/api/chain/erc20-balance",
   "category": "x402 pay-per-call endpoint",
   "does": "ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneS",
   "price_published": "0.003 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 524,
   "purpose": "ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneS",
   "price": {
    "amount": 0.003,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.003 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "api.onesource.io",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 524,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=api.onesource.io"
  },
  {
   "name": "StableEnrich",
   "builder_host": "stableenrich.dev",
   "endpoint": "https://stableenrich.dev/api/exa/search",
   "category": "x402 pay-per-call endpoint",
   "does": "Exa Search - Neural search across the web",
   "price_published": "0.01 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 170,
   "purpose": "Exa Search - Neural search across the web",
   "price": {
    "amount": 0.01,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.01 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "stableenrich.dev",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 170,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=StableEnrich"
  },
  {
   "name": "tick.hugen.tokyo",
   "builder_host": "tick.hugen.tokyo",
   "endpoint": "https://tick.hugen.tokyo/tick/latest",
   "category": "x402 pay-per-call endpoint",
   "does": "Get real-time Best Bid/Ask for any FX pair, aggregated from multiple institutional liquidity providers. 62-88%",
   "price_published": "0.005 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 151,
   "purpose": "Get real-time Best Bid/Ask for any FX pair, aggregated from multiple institutional liquidity providers. 62-88%",
   "price": {
    "amount": 0.005,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.005 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "tick.hugen.tokyo",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 151,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=tick.hugen.tokyo"
  },
  {
   "name": "BlockRun.AI",
   "builder_host": "blockrun.ai",
   "endpoint": "https://blockrun.ai/api/v1/pm/polymarket/markets",
   "category": "x402 pay-per-call endpoint",
   "does": "Query Polymarket markets with filtering, sorting, and pagination",
   "price_published": "0.0085 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 95,
   "purpose": "Query Polymarket markets with filtering, sorting, and pagination",
   "price": {
    "amount": 0.0085,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.0085 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "blockrun.ai",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 95,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=BlockRun.AI"
  },
  {
   "name": "Exa",
   "builder_host": "api.exa.ai",
   "endpoint": "https://api.exa.ai/search",
   "category": "x402 pay-per-call endpoint",
   "does": "Exa /search endpoint",
   "price_published": "0.007 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 94,
   "purpose": "Exa /search endpoint",
   "price": {
    "amount": 0.007,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.007 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "api.exa.ai",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 94,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Exa"
  },
  {
   "name": "Otto AI",
   "builder_host": "x402.ottoai.services",
   "endpoint": "https://x402.ottoai.services/crypto-news",
   "category": "x402 pay-per-call endpoint",
   "does": "Importance-ranked crypto headlines with per-article source links and publish times, plus a sentiment-scored ma",
   "price_published": "0.001 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 87,
   "purpose": "Importance-ranked crypto headlines with per-article source links and publish times, plus a sentiment-scored ma",
   "price": {
    "amount": 0.001,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.001 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "x402.ottoai.services",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 87,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Otto%20AI"
  },
  {
   "name": "ApiToll Crypto Prices",
   "builder_host": "crypto.apitoll.cloud",
   "endpoint": "https://crypto.apitoll.cloud/v1/crypto/price",
   "category": "x402 pay-per-call endpoint",
   "does": "Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): curr",
   "price_published": "0.001 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 70,
   "purpose": "Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): curr",
   "price": {
    "amount": 0.001,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.001 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "crypto.apitoll.cloud",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 70,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=ApiToll%20Crypto%20Prices"
  },
  {
   "name": "Oblique Markets",
   "builder_host": "api.oblique.markets",
   "endpoint": "https://api.oblique.markets/api/v1/paid/time",
   "category": "x402 pay-per-call endpoint",
   "does": "Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Re",
   "price_published": "0.01 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 66,
   "purpose": "Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Re",
   "price": {
    "amount": 0.01,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.01 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "api.oblique.markets",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 66,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Oblique%20Markets"
  },
  {
   "name": "api.loyalspark.online",
   "builder_host": "api.loyalspark.online",
   "endpoint": "https://api.loyalspark.online/x402-gateway/recipient-api/offers",
   "category": "x402 pay-per-call endpoint",
   "does": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real va",
   "price_published": "0.001 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 53,
   "purpose": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real va",
   "price": {
    "amount": 0.001,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.001 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "api.loyalspark.online",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 53,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=api.loyalspark.online"
  },
  {
   "name": "StableUpload",
   "builder_host": "stableupload.dev",
   "endpoint": "https://stableupload.dev/api/upload",
   "category": "x402 pay-per-call endpoint",
   "does": "Buy an upload slot. Agent uploads file via returned URL.",
   "price_published": "0.005 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 47,
   "purpose": "Buy an upload slot. Agent uploads file via returned URL.",
   "price": {
    "amount": 0.005,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.005 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "stableupload.dev",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 47,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=StableUpload"
  },
  {
   "name": "agentbit.app",
   "builder_host": "agentbit.app",
   "endpoint": "https://agentbit.app/v1/web/search",
   "category": "x402 pay-per-call endpoint",
   "does": "Live web search for AI agents: returns ranked results with title, URL, snippet, publish date and source. Neura",
   "price_published": "0.015 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 44,
   "purpose": "Live web search for AI agents: returns ranked results with title, URL, snippet, publish date and source. Neura",
   "price": {
    "amount": 0.015,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.015 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "agentbit.app",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 44,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=agentbit.app"
  },
  {
   "name": "api.printmoneylab.com",
   "builder_host": "api.printmoneylab.com",
   "endpoint": "https://api.printmoneylab.com/api/v1/kr-prices",
   "category": "x402 pay-per-call endpoint",
   "does": "Korean exchange prices (Upbit, Bithumb) for a single token in KRW",
   "price_published": "0.002 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 43,
   "purpose": "Korean exchange prices (Upbit, Bithumb) for a single token in KRW",
   "price": {
    "amount": 0.002,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.002 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "api.printmoneylab.com",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 43,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=api.printmoneylab.com"
  },
  {
   "name": "Nansen",
   "builder_host": "api.nansen.ai",
   "endpoint": "https://api.nansen.ai/api/v1/tgm/who-bought-sold",
   "category": "x402 pay-per-call endpoint",
   "does": "Get \"Token God Mode\" (TGM) who bought/sold data",
   "price_published": "0.01 USDC per call",
   "payment": "x402 (USDC on Base, eip155:8453); no account/API key",
   "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
   "checked": "2026-10-14",
   "payers_30d_reported": 42,
   "purpose": "Get \"Token God Mode\" (TGM) who bought/sold data",
   "price": {
    "amount": 0.01,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "0.01 USDC per call",
    "source_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": [
     "eip155:8453"
    ]
   },
   "provenance": {
    "builder_host": "api.nansen.ai",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": 42,
    "source": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "reported",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Nansen"
  },
  {
   "name": "BlockRun.AI chat completions",
   "builder_host": "blockrun.ai",
   "endpoint": "https://blockrun.ai/api/v1/chat/completions",
   "category": "x402 pay-per-call endpoint",
   "does": "LLM chat completions, pay per request",
   "price_published": "from 0.002 USDC per request (listed minimum)",
   "payment": "x402 (USDC on Base)",
   "source": "https://fetchgate.dev/tools/x402-bazaar-audit",
   "checked": "2026-10-14",
   "purpose": "LLM chat completions, pay per request",
   "price": {
    "amount": 0.002,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "from 0.002 USDC per request (listed minimum)",
    "source_url": "https://fetchgate.dev/tools/x402-bazaar-audit",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "x402",
    "networks": []
   },
   "provenance": {
    "builder_host": "blockrun.ai",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": null,
    "source": null
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "missing",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=BlockRun.AI%20chat%20completions"
  },
  {
   "name": "Tanod x402 index",
   "builder_host": "tanod.dev",
   "endpoint": "https://tanod.dev/mcp",
   "category": "x402 API + MCP server",
   "does": "Index/search of the x402 Bazaar; pulse, price benchmark, agent query",
   "price_published": "summary free; /v1/x402/pulse 0.002 USD; /v1/x402/price-benchmark 0.002 USD; /v1/agents/query 0.02 USD",
   "payment": "x402 (USDC)",
   "source": "https://tanod.dev/learn/x402-bazaar-agent-demand-data.html",
   "checked": "2026-10-14",
   "purpose": "Index/search of the x402 Bazaar; pulse, price benchmark, agent query",
   "price": {
    "amount": 1,
    "asset": "USDC",
    "unit": "call",
    "rail": "x402",
    "as_published": "summary free; /v1/x402/pulse 0.002 USD; /v1/x402/price-benchmark 0.002 USD; /v1/agents/query 0.02 USD",
    "source_url": "https://tanod.dev/learn/x402-bazaar-agent-demand-data.html",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "mcp-streamable-http"
    ],
    "auth": "x402",
    "networks": []
   },
   "provenance": {
    "builder_host": "tanod.dev",
    "endpoint_host_matches_builder": true,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": null,
    "source": null
   },
   "test_vectors": {
    "mode": "unverifiable_without_payment",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "missing",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Tanod%20x402%20index"
  },
  {
   "name": "Exa",
   "builder_host": "exa.ai",
   "endpoint": "https://api.exa.ai",
   "category": "API key, pay-as-you-go",
   "does": "Web search, contents, answer, research agent for AI",
   "price_published": "/search $7 per 1k requests; /answer $5 per 1k; /contents $1 per 1k pages per content type; Agent $0.012-$1.00 per fixed-effort run",
   "payment": "Prepaid credits (card); API key",
   "source": "https://exa.ai/pricing?tab=api",
   "checked": "2026-10-14",
   "purpose": "Web search, contents, answer, research agent for AI",
   "price": {
    "amount": null,
    "asset": null,
    "unit": null,
    "rail": "other",
    "as_published": "/search $7 per 1k requests; /answer $5 per 1k; /contents $1 per 1k pages per content type; Agent $0.012-$1.00 per fixed-effort run",
    "source_url": "https://exa.ai/pricing?tab=api",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "api_key",
    "networks": []
   },
   "provenance": {
    "builder_host": "exa.ai",
    "endpoint_host_matches_builder": false,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": null,
    "source": null
   },
   "test_vectors": {
    "mode": "unverifiable_without_api_key",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "missing",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Exa"
  },
  {
   "name": "Tavily",
   "builder_host": "tavily.com",
   "endpoint": "https://api.tavily.com",
   "category": "API key, credits",
   "does": "AI search, extract, crawl for agents",
   "price_published": "$0.008 per credit pay-as-you-go; 1,000 free credits/month",
   "payment": "Card; API key",
   "source": "https://www.tavily.com/pricing",
   "checked": "2026-10-14",
   "purpose": "AI search, extract, crawl for agents",
   "price": {
    "amount": null,
    "asset": null,
    "unit": null,
    "rail": "other",
    "as_published": "$0.008 per credit pay-as-you-go; 1,000 free credits/month",
    "source_url": "https://www.tavily.com/pricing",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "api_key",
    "networks": []
   },
   "provenance": {
    "builder_host": "tavily.com",
    "endpoint_host_matches_builder": false,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": null,
    "source": null
   },
   "test_vectors": {
    "mode": "unverifiable_without_api_key",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "missing",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Tavily"
  },
  {
   "name": "Firecrawl",
   "builder_host": "firecrawl.dev",
   "endpoint": "https://api.firecrawl.dev",
   "category": "API key, credits",
   "does": "Scrape, crawl, map, search web pages into LLM-ready data",
   "price_published": "1 credit per page (scrape/crawl/map); search 2 credits per 10 results; $ per credit depends on plan (unknown here); 1,000 free credits/month",
   "payment": "Card subscription + pay-as-you-go; API key",
   "source": "https://www.firecrawl.dev/pricing",
   "checked": "2026-10-14",
   "purpose": "Scrape, crawl, map, search web pages into LLM-ready data",
   "price": {
    "amount": null,
    "asset": null,
    "unit": null,
    "rail": "other",
    "as_published": "1 credit per page (scrape/crawl/map); search 2 credits per 10 results; $ per credit depends on plan (unknown here); 1,000 free credits/month",
    "source_url": "https://www.firecrawl.dev/pricing",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "api_key",
    "networks": []
   },
   "provenance": {
    "builder_host": "firecrawl.dev",
    "endpoint_host_matches_builder": false,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": null,
    "source": null
   },
   "test_vectors": {
    "mode": "unverifiable_without_api_key",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "missing",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Firecrawl"
  },
  {
   "name": "Serper",
   "builder_host": "serper.dev",
   "endpoint": "https://google.serper.dev",
   "category": "API key, prepaid credits",
   "does": "Google SERP API",
   "price_published": "$375 for 500,000 queries (credits valid 6 months); other tiers not captured",
   "payment": "Card or PayPal; API key",
   "source": "https://serper.dev/",
   "checked": "2026-10-14",
   "purpose": "Google SERP API",
   "price": {
    "amount": null,
    "asset": null,
    "unit": null,
    "rail": "other",
    "as_published": "$375 for 500,000 queries (credits valid 6 months); other tiers not captured",
    "source_url": "https://serper.dev/",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "api_key",
    "networks": []
   },
   "provenance": {
    "builder_host": "serper.dev",
    "endpoint_host_matches_builder": false,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": null,
    "source": null
   },
   "test_vectors": {
    "mode": "unverifiable_without_api_key",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "missing",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Serper"
  },
  {
   "name": "Brave Search API",
   "builder_host": "brave.com",
   "endpoint": "https://api.search.brave.com",
   "category": "API key",
   "does": "Independent-index web search",
   "price_published": "$5 per 1,000 requests with $5 monthly credit (per secondary source; first-party page not readable)",
   "payment": "Card; API key",
   "source": "https://www.firecrawl.dev/blog/best-search-tools-for-agents.md",
   "checked": "2026-10-14",
   "purpose": "Independent-index web search",
   "price": {
    "amount": null,
    "asset": null,
    "unit": null,
    "rail": "other",
    "as_published": "$5 per 1,000 requests with $5 monthly credit (per secondary source; first-party page not readable)",
    "source_url": "https://www.firecrawl.dev/blog/best-search-tools-for-agents.md",
    "checked_at": "2026-10-14"
   },
   "compatibility": {
    "transports": [
     "https"
    ],
    "auth": "api_key",
    "networks": []
   },
   "provenance": {
    "builder_host": "brave.com",
    "endpoint_host_matches_builder": false,
    "repo": null,
    "pkg_provenance": null,
    "mcp_namespace_verified": null,
    "openssf_score": null
   },
   "usage": {
    "payers_30d": null,
    "source": null
   },
   "test_vectors": {
    "mode": "unverifiable_without_api_key",
    "vectors_url": null,
    "count": 0,
    "pass_rate_7d": null,
    "last_verified_at": null
   },
   "buy_vs_build": {
    "basis": "estimate",
    "verdict": "unknown",
    "note": "Not computed yet; no invented numbers."
   },
   "work_for_access": {
    "offered": false,
    "note": "Not offered yet (bounty loop not built)."
   },
   "probe": {
    "measures": "unpaid_reachability_and_payment_wall",
    "latency_ms_p50": null,
    "latency_ms_p95": null,
    "uptime_7d_pct": null,
    "probes_7d": 0,
    "last_probe_at": null,
    "last_status": null,
    "stale": true
   },
   "house_tool": false,
   "signal_confidence": {
    "purpose": "reported",
    "price": "reported",
    "compatibility": "reported",
    "provenance": "measured",
    "usage": "missing",
    "test_vectors": "missing",
    "buy_vs_build": "missing",
    "work_for_access": "missing",
    "probe": "measured",
    "house_tool": "measured"
   },
   "use_url": "https://dirtsmith-go.bfurrow26.workers.dev/use?tool=Brave%20Search%20API"
  }
 ],
 "schema_version": "listing-v2 (value signals)",
 "signal_labels": {
  "measured": "Dirtsmith measured it itself (probe every 15 min, unpaid GET, identified user-agent)",
  "reported": "copied from builder/facilitator public data",
  "estimated": "Dirtsmith estimate",
  "missing": "not available; never invented"
 },
 "use": {
  "note": "Each tool has use_url (returns a quote; paid use not live yet). Paid use through Dirtsmith is NOT live yet. This is a quote only: nothing was purchased, no payment was taken, no charge will be made, and this request was NOT forwarded to the tool. Dirtsmith recorded this request to measure demand before building paid use. To use the tool today, call its endpoint directly and pay its builder under the builder's published terms.",
  "mcp_tool": "use_tool"
 }
}