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
164,460
Distinct MCP URLs
43
Catalog observations
263,972
URLs with a 402 in 7 days
2,206
Network identifiers
183

These results as JSON

POST https://a-upgradenet.com/x402/tool-call-audit-max · 2 observations
Tool-Call Audit Max: measures how an AI agent calls its tools on a hidden test, returns a fix that keeps the interface unchanged, and re-measures. Charged only after the report exists.

a-upgradenet.com profile

  • Base · exact
    $0.2000 (USDC)
    Recipient 0xBdae34e121dFf6Da6fbB71208322E8BE0A923512
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Base · exact
    $0.2000 (USDC)
    agentic.market · seen
POST https://a-upgradenet.com/x402/tool-call-audit-pro · 2 observations
Tool-Call Audit Pro: measures how an AI agent calls its tools on a hidden test, returns a fix that keeps the interface unchanged, and re-measures. Charged only after the report exists.

a-upgradenet.com profile

  • Base · exact
    $0.1500 (USDC)
    Recipient 0xBdae34e121dFf6Da6fbB71208322E8BE0A923512
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Base · exact
    $0.1500 (USDC)
    agentic.market · seen
POST https://a-upgradenet.com/x402/web-read · 3 observations
Web Page Reader: fetches one public URL and returns clean Markdown text, title, description and links, ready for an LLM. Charged only when the page responds.

a-upgradenet.com profile

  • Base · exact
    $0.0050 (USDC)
    Recipient 0xBdae34e121dFf6Da6fbB71208322E8BE0A923512
    PayAI · seen
  • Base · exact
    $0.0050 (USDC)
    Recipient 0xBdae34e121dFf6Da6fbB71208322E8BE0A923512
    Coinbase CDP · seen
    Coinbase CDP reports 3 calls and 3 unique payers in 30 days. Last call .
  • Base · exact
    $0.0050 (USDC)
    agentic.market · seen
POST https://a-upgradenet.com/x402/web-search · 2 observations
Web Search + Read: live web search for AI agents. Use when the agent needs current information beyond its training data. Returns ranked results (title, url, snippet, source) and, with read_top, the clean Markdown of the top pages in the same call. Charged only when at least one result is returned; empty or blocked searches are never charged.

a-upgradenet.com profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0xBdae34e121dFf6Da6fbB71208322E8BE0A923512
    Coinbase CDP · seen
    Coinbase CDP reports 3 calls and 2 unique payers in 30 days. Last call .
  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
POST https://a2apay.io/api/agent-memory · 1 observation
Persistent memory for AI agents — secure, automatically backed up, and running on redundant ICP infrastructure with no single point of failure. Store what your agent needs to remember, on-chain, pay-per-write.

a2apay profile

  • Base · exact
    $0.0280 (USDC)
    agentic.market · seen
POST https://a2apay.io/api/agent-memory/resume · 1 observation
Resume a task: read back the latest version of every key you wrote under a given taskId via /api/agent-memory, or that another agent explicitly granted you read access to. Priced below a write on purpose -- reads are cheaper than writes here; this price is a provisional first cut, not a settled policy.

a2apay profile

  • Base · exact
    $0.0140 (USDC)
    agentic.market · seen
POST https://a2apay.io/api/agent-service · 2 observations
On-demand AI responses backed by autonomous ICP canisters. Submit a prompt, get an answer — redundant infrastructure, pay-per-query, no account required.

a2apay profile

  • Base · exact
    $0.0280 (USDC)
    Recipient 0x0928b96e482676440ea91f547a49aadbdc1a7eb9
    Coinbase CDP · seen
    Coinbase CDP reports 536 calls and 1 unique payers in 30 days. Last call .
  • Base · exact
    $0.0280 (USDC)
    agentic.market · seen
GET https://a402test.pages.dev/api/premium-data · 2 observations
Premium access data endpoint gated at $0.05 USDC

a402test.pages.dev profile

  • Base · exact
    $0.0500 (USDC)
    Recipient 0x2Fb28239B3dE6f5DDba89cA77BdBfb5dc46da523
    Coinbase CDP · seen
    Coinbase CDP reports 4 calls and 3 unique payers in 30 days. Last call .
  • Base · exact
    $0.0500 (USDC)
    agentic.market · seen
POST https://aanet.space/workspaces/{workspace_id}/deposit · 1 observation

Autonomous Agents Network (AANet) profile

  • Base
    Amount unreported
    Operator manifest · seen
GET https://aaron-protocol-radar.vercel.app/agents/framework-releases · 4 observations
Latest releases of AI agent frameworks and specs as JSON: OpenClaw, Model Context Protocol specification, LangGraph, CrewAI. Version, date, days since release and link to release notes, read live from GitHub.

aaron-protocol-radar.vercel.app profile

  • Base
    Amount unreported
    Operator manifest · seen
  • Base · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
    Coinbase CDP reports 2 calls and 2 unique payers in 30 days. Last call .
  • eip155:84532 Testnet · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
GET https://aaron-protocol-radar.vercel.app/catalog · 1 observation

aaron-protocol-radar.vercel.app profile

  • Base
    Amount unreported
    Operator manifest · seen
GET https://aaron-protocol-radar.vercel.app/ethereum/client-releases · 4 observations
Latest releases of the 10 main Ethereum clients as JSON: execution (go-ethereum, Nethermind, Besu, Erigon, Reth) and consensus (Lighthouse, Prysm, Teku, Nimbus, Lodestar). Version, date, days since release, link to notes, and a plain keyword flag when notes mention security or urgent upgrades.

aaron-protocol-radar.vercel.app profile

  • Base
    Amount unreported
    Operator manifest · seen
  • Base · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • eip155:84532 Testnet · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
GET https://aaron-protocol-radar.vercel.app/ethereum/eips 402 observed · 5 observations
Status of every Ethereum Improvement Proposal as JSON: number, title, status (living, final, last-call, review, draft, stagnant, withdrawn) and link, plus counts by status. Parsed live from eips.ethereum.org (EIPs are CC0).

aaron-protocol-radar.vercel.app profile

  • Base 402 observed · exact
    $0.0100 (USDC)
    Recipient 0x4b5887b6e399c2e104becd01f7c406229c15891d
    Agenstry probe · seen
  • eip155:84532 Testnet 402 observed · exact
    10000 minor units
    Recipient 0x4b5887b6e399c2e104becd01f7c406229c15891d
    Agenstry probe · seen
  • Base · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
    Coinbase CDP reports 6 calls and 6 unique payers in 30 days. Last call .
  • eip155:84532 Testnet · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
GET https://aaron-protocol-radar.vercel.app/x402/protocol-updates 402 observed · 5 observations
x402 protocol updates as JSON: recently merged changes in the x402 Foundation repository (formerly coinbase/x402), latest tags, and current npm versions of the @x402 packages (core, evm, express, fetch, extensions) and @coinbase/x402. Read live from GitHub and npm, with links.

aaron-protocol-radar.vercel.app profile

  • Base 402 observed · exact
    $0.0100 (USDC)
    Recipient 0x4b5887b6e399c2e104becd01f7c406229c15891d
    Agenstry probe · seen
  • eip155:84532 Testnet 402 observed · exact
    10000 minor units
    Recipient 0x4b5887b6e399c2e104becd01f7c406229c15891d
    Agenstry probe · seen
  • Base · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • eip155:84532 Testnet · exact
    $0.0100 (USDC)
    Recipient 0x4b5887B6E399C2E104becd01f7c406229c15891d
    Coinbase CDP · seen
  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
POST https://ab.goplausible.xyz/api/coins · 1 observation
A 1 USDC coin for Arcade Bazaar: 100 plays, on any cabinet.

Ab profile

  • Base · exact
    $1.0000 (USDC)
    Recipient 0xDa85FaaB77cf5Ee18F1b0DaE500A2432850D3A1b
    GoPlausible · seen
POST https://abercrombie.x402.fi/store/buy/abercrombie-fitch-100 · 1 observation
Accepts exact $100 USDC (Solana) payments for an Abercrombie & Fitch purchase, with a 5-minute timeout and settlement/fee-payer support.

Abercrombie profile

  • Solana · exact
    $100.0000 (USDC)
    Recipient Ak3Zw57WFjq94FGuX4sWNetqiCpbWQgmLoNmfRzEsadx
    Dexter · seen
POST https://abercrombie.x402.fi/store/buy/abercrombie-fitch-50 · 1 observation
Creates a $50 Abercrombie & Fitch checkout paid in Solana USDC, returning pay-to address, amount, timeout and settlement/fee-payer support.

Abercrombie profile

  • Solana · exact
    $50.0000 (USDC)
    Recipient Ak3Zw57WFjq94FGuX4sWNetqiCpbWQgmLoNmfRzEsadx
    Dexter · seen
GET https://abi-mainnet-sandbox.benjaminbu.workers.dev/v1/business-days · 1 observation
Business-day calculator

Abi-Mainnet-Sandbox profile

  • Base · exact
    $0.0050 (USDC)
    Recipient 0xdd279af7112D942B8CC8e4384Dd4dB3aCe0CD94E
    PayAI · seen
POST https://abi-mainnet-sandbox.benjaminbu.workers.dev/v1/csv/profile · 1 observation
CSV profiler

Abi-Mainnet-Sandbox profile

  • Base · exact
    $0.0050 (USDC)
    Recipient 0xdd279af7112D942B8CC8e4384Dd4dB3aCe0CD94E
    PayAI · seen
GET https://abi-mainnet-sandbox.benjaminbu.workers.dev/v1/jp/gotobi · 1 observation
Japanese gotobi calendar

Abi-Mainnet-Sandbox profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0xdd279af7112D942B8CC8e4384Dd4dB3aCe0CD94E
    PayAI · seen
GET https://abi-mainnet-sandbox.benjaminbu.workers.dev/v1/x402/verify · 1 observation
Base USDC receipt verifier

Abi-Mainnet-Sandbox profile

  • Base · exact
    $0.0050 (USDC)
    Recipient 0xdd279af7112D942B8CC8e4384Dd4dB3aCe0CD94E
    PayAI · seen
GET https://abiel-x402.protocolomc.com.br/v1/vault-risk/:vault · 1 observation
Live on-chain checks of a Morpho (MetaMorpho) vault on Base: official-factory verification, USDC peg 0.98-1.02 (Chainlink, fresh), governance (curator/owner/guardian/timelock/fee), share price, idle USDC, deposit status. One block (number+hash). Verdict SEM_ALERTAS/ATENCAO/ALTO_RISCO. Does NOT analyze underlying markets (collateral, LLTV, caps). Not charged when unverified or incomplete.

abiel-x402.protocolomc.com.br profile

  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
GET https://abr-x402-staging.k5e.workers.dev/v1/verifier-manifest · 1 observation
ABR CLI buys a local verifier command manifest for eligible secret findings. Secrets, profile names, paths, scan reports, and provider identities stay on the user's machine.
  • algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI= · exact
    $0.1000 (USDC)
    Recipient 3BF2AJAXCHEWO2X5SV3KPZJEVFJ5GNMMOKSITFONYXJHSP2HY5U4PYPCFA
    GoPlausible · seen
GET https://abr.kloudle.dev/v1/verifier-manifest · 2 observations
ABR CLI buys a local verifier command manifest for eligible secret findings. Secrets, profile names, paths, scan reports, and provider identities stay on the user's machine.
  • algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · exact
    $0.1000 (USDC)
    Recipient 4HBMITKIS36ASVJJFON6X5FOJ4TGDJBJAPOMLEBXGRAXGWWV74WSB7AO7E
    GoPlausible · seen
  • algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · exact
    $0.1000 (USDC)
    Recipient QVWVG355ZDC3ZP6TVEQEDUOGQJVKGKT53RB4VI3AQWABUUHU7V7WFFTHGY
    GoPlausible · 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.