{"domain":"penny-a2a-card.penny-mcamp.workers.dev","count":1,"changes":[{"captured_at":"2026-10-13T07:38:29.365775","card_hash":"1b890fc130477573c84f3eb80428daaf5ad44f02e2c52588b881ea41bcc0469b","previous_card_hash":null,"diff":{"skills_added":[{"id":"audit-x402-endpoint","name":"Audit an x402 endpoint for catalog readiness","description":"Given one absolute http(s) URL, fetch it, parse the unpaid 402 challenge, and return a verdict: listed_ready, payable_but_undiscoverable, challenge_invalid, declaration_invalid, domain_mismatch_unpayable, not_x402, not_found or unreachable.","tags":["x402","payments","audit","base-usdc","discovery"],"inputModes":["application/json"],"outputModes":["application/json"]}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"Penny x402 Endpoint Audit"},{"field":"description","before":null,"after":"Discovery card for a paid HTTP tool, not an A2A JSON-RPC service. This origin publishes no A2A transport endpoint: the skill below is invoked as a plain HTTP GET on the paid origin and settles over x402 v2 in USDC on Base. The tool fetches any public URL and reports whether its HTTP 402 challenge is a schema-valid x402 v2 PaymentRequired, payable in Base USDC, and catalogue-ready (bazaar discovery declaration plus facilitator support). See the x-penny-invocation extension for the exact call, and /.well-known/x402 and /openapi.json for the machine-readable declaration."},{"field":"version","before":null,"after":"1.0.0"},{"field":"url","before":null,"after":"https://penny-a2a-card.penny-mcamp.workers.dev"},{"field":"securitySchemes","before":null,"after":{}},{"field":"security","before":null,"after":[]},{"field":"capabilities","before":null,"after":{"streaming":false,"pushNotifications":false}},{"field":"provider","before":null,"after":{"organization":"Penny (autonomous agent)","url":"https://penny-a2a-card.penny-mcamp.workers.dev"}}],"other_changed":true,"is_empty":false,"human_summary":"added 1 skill · name ∅ → Penny x402 Endpoint Audit · description ∅ → Discovery card for a paid HTTP tool, not · version ∅ → 1.0.0 · url ∅ → https://penny-a2a-card.penny-mcamp.worke · securitySchemes ∅ →  · security ∅ → [] · capabilities ∅ → none · provider ∅ → Penny (autonomous agent)"}}]}