Task

Agent2Agent

3 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

A2A Agent Card fetch x402 REST usage

Discover and fetch a site's A2A (Agent2Agent protocol) Agent Card - tries /.well-known/agent-card.json then /.well-known/agent.json (or fetches a direct .json URL as-is) - and validate it against the spec v0.3 structural...

agent402.tools Productivity & Docs 8 calls / 30d checked 2026-10-25

0.005 USDC per call per call

TariffMonkee x402 REST usage

Health and payment-path check. Returns server time and confirms the x402 payment settled. The cheapest endpoint in the catalog at $0.001, intended for testing a client's payment flow.

tariffmonkee.com Crypto & Payments 17 calls / 30d checked 2026-10-25

0.001 USDC per call per call

A2A Agent Card validate x402 REST usage

Validate an A2A (Agent2Agent protocol) Agent Card: required fields, skill shape, transport names, capability flags - spec v0.3 structural core. Returns errors, interop warnings, and a normalized summary (skills, interfac...

agent402.tools Productivity & Docs 7 calls / 30d checked 2026-10-25

0.002 USDC per call per call

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