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
161,573
Distinct MCP URLs
43
Catalog observations
271,079
URLs with a 402 in 7 days
1,219
Network identifiers
181

These results as JSON

GET http://apiv2.laevitas.ch/api/v1/perpetuals/orderbook-raw · 1 observation

Laevitas API V2 profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0xdB5C2dF47e4A6Df74edeb6DE3159ae38b8Cc10fd
    PayAI · seen
GET http://apiv2.laevitas.ch/api/v1/perpetuals/reference-price · 1 observation

Laevitas API V2 profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0xdB5C2dF47e4A6Df74edeb6DE3159ae38b8Cc10fd
    PayAI · seen
GET http://apiv2.laevitas.ch/api/v1/perpetuals/ticker-history · 1 observation

Laevitas API V2 profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0xdB5C2dF47e4A6Df74edeb6DE3159ae38b8Cc10fd
    PayAI · seen
GET http://apiv2.laevitas.ch/api/v1/perpetuals/trades · 1 observation

Laevitas API V2 profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0xdB5C2dF47e4A6Df74edeb6DE3159ae38b8Cc10fd
    PayAI · seen
GET http://apiv2.laevitas.ch/api/v1/perpetuals/volume · 1 observation

Laevitas API V2 profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0xdB5C2dF47e4A6Df74edeb6DE3159ae38b8Cc10fd
    PayAI · seen
GET http://apiv2.laevitas.ch/api/v1/spot/l2-orderbook · 1 observation

Laevitas API V2 profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0xdB5C2dF47e4A6Df74edeb6DE3159ae38b8Cc10fd
    PayAI · seen
POST http://appraxa-ip.b-kohlenbach.workers.dev/v1/ip/basic · 1 observation

Appraxa-Ip profile

  • Base · exact
    $0.9900 (USDC)
    Recipient 0xAB8073f5b13b3B7fc6F6b03439151D5EEC0B6dD5
    PayAI · seen
GET http://arbsignal-production.up.railway.app/arb/scan · 1 observation
ArbSignal — live cross-DEX arbitrage scanner for Algorand. Finds asset pairs priced differently across DEXes (Tinyman, Pact, HumbleSwap, Folks) and returns the profitable gaps, ranked by EXPECTED PROFIT IN USD — not by spread %, because a wide spread on a shallow pool is worth almost nothing. Each opportunity names the cheapest pool to BUY the base asset and the richest pool to SELL it (pool IDs, protocols, decimal-adjusted prices, fees, USD depth), plus an `executable` block that solves bot
  • algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · exact
    $0.0020 (USDC)
    Recipient N2BHBOQEI5TQQKFKHDRDUACAZE6E55X6VO2U67IQAYBRRLB7LSMO6YRQSM
    GoPlausible · seen
POST http://aupm.fyi/v1/attest/lockfile · 1 observation
Signed in-toto attestation for every package in a package-lock.json: human review tier, reviewer, tarball integrity match, and the Algorand txid anchoring each review. $0.001 per reviewed package; free when no package in the tree is reviewed. Target split 30/10/20/25/10/5. In the MVP: 30% to the auditor, 70% to the operator until the other roles launch.
  • algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · exact
    $0.0010 (USDC)
    Recipient ILGQLGQEFAKO5UPJEFTZXPKV7NLI6OJHG5NOLYPAOQHGUEG3EUMO6P6WKU
    GoPlausible · seen
GET http://axiaxai.vercel.app/api/chains · 1 observation

Axiaxai profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/detect · 1 observation

Axiaxai profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/explain/:address · 1 observation

Axiaxai profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/explain/:chain/:address · 1 observation

Axiaxai profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/hash · 1 observation

Axiaxai profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/languages · 1 observation

Axiaxai profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/markdown · 1 observation

Axiaxai profile

  • Base · exact
    $0.0200 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/market · 1 observation

Axiaxai profile

  • Base · exact
    $0.5000 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/research/:token · 1 observation

Axiaxai profile

  • Base · exact
    $0.5000 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/seo/:type/:topic · 1 observation

Axiaxai profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axiaxai.vercel.app/api/translate/:lang/:text · 1 observation

Axiaxai profile

  • Base · exact
    $0.0200 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axixixia.vercel.app/api/chains · 1 observation

Axixixia profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axixixia.vercel.app/api/detect · 1 observation

Axixixia profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axixixia.vercel.app/api/explain/:address · 1 observation

Axixixia profile

  • Base · exact
    $0.1000 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · seen
GET http://axixixia.vercel.app/api/hash · 1 observation

Axixixia profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x65c0c6b453008b786424b3c5a268c6885a8f11cc
    PayAI · 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.