x402 resource directory

Find paid HTTP operations and MCP tools by URL, host, method or tool name. Compare payment terms across networks and catalogs.

Distinct HTTP URLs
164,664
Distinct MCP URLs
43
Catalog observations
263,972
URLs with a 402 in 7 days
2,232
Network identifiers
183

These results as JSON · Clear filters

GET https://us-counties.x402tookit.com/counties-by-population · 1 observation
Rank US counties by July 2025 population estimate, nationally or within one state; largest or smallest first.

us-counties.x402tookit.com profile

  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen
GET https://us-counties.x402tookit.com/counties-in-state · 1 observation
List a state's counties or county equivalents with FIPS, population and land area; resolves FIPS, postal code or name.

us-counties.x402tookit.com profile

  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen
GET https://us-counties.x402tookit.com/county-density · 1 observation
Population density of a US county per square mile and km of land, with national and state rank and US average.

us-counties.x402tookit.com profile

  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen
GET https://us-counties.x402tookit.com/county-lookup · 1 observation
US county by 5-digit FIPS or name plus state: name, area, population, density, centroid. Census Bureau data.

us-counties.x402tookit.com profile

  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen
GET https://us-counties.x402tookit.com/county-nearest-to-point · 5 observations
Counties whose Census centroids are nearest a latitude and longitude, with great-circle distance. Not point-in-polygon.

us-counties.x402tookit.com profile

  • Polygon · exact
    $0.0200 (USDC)
    Recipient 0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Arbitrum · exact
    $0.0200 (USDC)
    Recipient 0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa
    Coinbase CDP · seen
  • Base · exact
    $0.0200 (USDC)
    Recipient 0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa
    Coinbase CDP · seen
  • Solana · exact
    $0.0200 (USDC)
    Recipient DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s
    Coinbase CDP · seen
  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen
GET https://us-counties.x402tookit.com/county-search · 1 observation
Search US counties by full or partial name, optionally within one state; ranked, capped at 50.

us-counties.x402tookit.com profile

  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen
GET https://us-counties.x402tookit.com/fips-parse-and-validate · 1 observation
Split a county FIPS into state and county parts, check both exist, flag retired, legacy or zero-dropped codes.

us-counties.x402tookit.com profile

  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen
GET https://us-counties.x402tookit.com/state-summary · 1 observation
State totals from county data: county count, land and water area, population, density, largest and smallest counties.

us-counties.x402tookit.com profile

  • Base · exact
    $0.0200 (USDC)
    agentic.market · seen

Counts describe directory coverage, including testnets. Each resource groups the same URL, HTTP method or MCP tool across sources. A catalog sighting records published terms. A live 402 records the endpoint’s reply to an unpaid request.