{"aid":"draconic21-x402-api.onrender.com:draconic21","name":"draconic21 Daily Agent Signal","type":"Index","kind":"independent","description":"Daily Agent Signal: a dated, ranked x402 / agent-commerce market brief with a public scored track record (misses included) and Bitcoin-anchored edition hashes. Free keyless previews; paid Signal routes are per-call x402 in USDC on Base, no account or key. Signal/planning only, not financial advice.","image":"https://draconic21-x402-api.onrender.com/logo-400.png","url":"https://draconic21-x402-api.onrender.com/.well-known/apis.json","tags":["x402","agent-commerce","market-intelligence","signal","pay-per-call","usdc","base","mcp","a2a"],"created":"2026-10-19","modified":"2026-10-19","specificationVersion":"0.24","apis":[{"aid":"draconic21-x402-api.onrender.com:daily-agent-signal","name":"Daily Agent Signal API","description":"The most recent stored ranked Signal edition (editions are not daily) and its archive (day, delta, history, continuity, topic trace). Check free GET /health first: it names the edition date and sha256 so a paid call can pin expect_sha256 and is refused, not charged, if the edition changed. Paid per call via x402 in USDC on Base (eip155:8453): POST /v1/signal_latest $0.03; POST /v1/signal_day $0.04; POST /v1/signal_delta $0.05; POST /v1/signal_history $0.10; POST /v1/signal_continuity $0.07; POST /v1/signal_topic_trace $0.06; POST /v1/archive_tip_day $0.01. Free and keyless: /health, /signal, /signal/feed.json, /signal/feed.xml, /signal/scorecard, /signal/scorecard.json, /signal/timestamps.json, /signal/editions.json, /signal/seller-ledger.json, /v1/signal_latest/example, /openapi.signal.json.","image":"https://draconic21-x402-api.onrender.com/logo-400.png","humanURL":"https://draconic21-x402-api.onrender.com/signal","baseURL":"https://draconic21-x402-api.onrender.com","version":"1.0.0","tags":["x402","signal","agent-commerce","track-record","opentimestamps"],"properties":[{"type":"OpenAPI","url":"https://draconic21-x402-api.onrender.com/openapi.signal.json","name":"Signal routes only","mediaType":"application/json"},{"type":"OpenAPI","url":"https://draconic21-x402-api.onrender.com/openapi.json","name":"Full catalog","mediaType":"application/json"},{"type":"APIOnboarding","url":"https://draconic21-x402-api.onrender.com/.well-known/api-onboarding","description":"AOD 0.1: no account, key or form; free routes open, paid routes per-call x402.","mediaType":"application/json"},{"type":"X-x402","url":"https://draconic21-x402-api.onrender.com/.well-known/x402.json","description":"x402 manifest with live per-route prices.","mediaType":"application/json"},{"type":"Pricing","url":"https://draconic21-x402-api.onrender.com/.well-known/x402.json","description":"Per call, USDC on Base: POST /v1/signal_latest $0.03; POST /v1/signal_day $0.04; POST /v1/signal_delta $0.05; POST /v1/signal_history $0.10; POST /v1/signal_continuity $0.07; POST /v1/signal_topic_trace $0.06; POST /v1/archive_tip_day $0.01."},{"type":"ModelContextProtocol","url":"https://draconic21-x402-api.onrender.com/.well-known/mcp.json","description":"Remote streamable-HTTP MCP at POST /mcp (paid tools answer the x402 challenge) and POST /mcp/free (keyless previews).","mediaType":"application/json"},{"type":"AgentCard","url":"https://draconic21-x402-api.onrender.com/.well-known/agent-card.json","description":"A2A agent card, JWS-signed (ES256); key at /.well-known/jwks.json.","mediaType":"application/json"},{"type":"A2A","url":"https://draconic21-x402-api.onrender.com/a2a","description":"Free A2A JSON-RPC endpoint."},{"type":"LLMsTxt","url":"https://draconic21-x402-api.onrender.com/llms.txt","mediaType":"text/plain"},{"type":"AgentSkill","url":"https://draconic21-x402-api.onrender.com/skill.md","mediaType":"text/markdown"},{"type":"Documentation","url":"https://draconic21-x402-api.onrender.com/agents.md","mediaType":"text/markdown"},{"type":"GettingStarted","url":"https://draconic21-x402-api.onrender.com/buyer.md","mediaType":"text/markdown"},{"type":"Examples","url":"https://draconic21-x402-api.onrender.com/v1/signal_latest/example","description":"Free example of the paid Signal response shape.","mediaType":"application/json"},{"type":"Sandbox","url":"https://draconic21-x402-api.onrender.com/signal","description":"Free HTML preview of the latest stored edition, keyless."},{"type":"BlogFeed","url":"https://draconic21-x402-api.onrender.com/signal/feed.xml","description":"Atom feed of Signal headlines (JSON Feed twin at /signal/feed.json).","mediaType":"application/atom+xml"},{"type":"Attestation","url":"https://draconic21-x402-api.onrender.com/signal/timestamps.json","description":"OpenTimestamps (Bitcoin) anchors over every stored edition hash, with ?sha256= lookup.","mediaType":"application/json"},{"type":"Provenance","url":"https://draconic21-x402-api.onrender.com/signal/scorecard.json","description":"Every scored past Signal call, misses included (HTML at /signal/scorecard).","mediaType":"application/json"},{"type":"Provenance","url":"https://draconic21-x402-api.onrender.com/signal/seller-ledger.json","description":"Recorded USDC inflows to our payTo with tx links and sender labels. Legacy log indexes and historical completeness remain unverified; inflows are not buyer revenue.","mediaType":"application/json"},{"type":"StatusPage","url":"https://draconic21-x402-api.onrender.com/health","description":"Free liveness plus the latest stored edition's date, generated_at, sha256 and age. Free host; may cold-start 30-60 s after idle."},{"type":"ChangeLog","url":"https://draconic21-x402-api.onrender.com/changelog"},{"type":"TermsOfService","url":"https://draconic21-x402-api.onrender.com/terms"},{"type":"PrivacyPolicy","url":"https://draconic21-x402-api.onrender.com/privacy"},{"type":"Security","url":"https://draconic21-x402-api.onrender.com/.well-known/security.txt","mediaType":"text/plain"}],"contact":[{"FN":"draconic21","url":"https://draconic21-x402-api.onrender.com"}]}],"common":[{"type":"APICatalog","url":"https://draconic21-x402-api.onrender.com/.well-known/api-catalog","description":"RFC 9727 linkset for this origin.","mediaType":"application/linkset+json"},{"type":"WellKnown","url":"https://draconic21-x402-api.onrender.com/.well-known/agent.json","description":"Agent discovery document linking every free surface.","mediaType":"application/json"}],"maintainers":[{"FN":"draconic21","url":"https://draconic21-x402-api.onrender.com"}]}