{"slug":"coincap-api","name":"CoinCap API","description":"CoinCap gives AI agents, apps, and developers real-time cryptocurrency market data. Two ways to access: - **API key** — sign up at https://coincap.io and pass `Authorization: Bearer <key>` or `?apiKey=<key>`. - **Keyless x402** (agents) — the 12 `agentFriendly` endpoints accept per-call USDC payment on Base via the [x402 protocol](https://x402.gitbook.io/x402). No signup needed. See `/.well-known/x402.json` for the machine-readable payment catalog.","protocol":"x402","protocols":["x402"],"category":"crypto-web3","category_label":"Crypto & web3","provider":null,"homepage":"https://coincap.io/","docs_url":"https://rest.coincap.io/openapi.json","endpoint_url":"https://rooms.aurmada.com/x402/v1/broker/coincap-api","card_url":null,"x402_url":"https://rooms.aurmada.com/x402/v1/broker/coincap-api","call_via_rooms":{"url":"https://rooms.aurmada.com/x402/v1/broker/coincap-api","method":"POST","available":true,"reason":null,"price":"$0.003","seller_price":"$0.002","margin":"seller price + Rooms margin","default_path":"/v3/agentFriendly/full_assets_by_slug","paths":[{"path":"/v3/agentFriendly/full_assets_by_slug","method":"GET","price":"$0.003","description":"Full asset data for one or more slugs (agent-optimized)."},{"path":"/v3/agentFriendly/history/ethereum","method":"GET","price":"$0.012","description":"Historical price series for an asset slug (capped data points)."},{"path":"/v3/agentFriendly/ta/bitcoin/ema","method":"GET","price":"$0.005","description":"Exponential moving average (EMA) for an asset slug."},{"path":"/v3/agentFriendly/assets_search","method":"GET","price":"$0.005","description":"Search CoinCap assets by name or symbol (agent-optimized)."},{"path":"/v3/agentFriendly/news_top","method":"GET","price":"$0.0072","description":"Top crypto news headlines (agent-optimized)."},{"path":"/v3/agentFriendly/total_market_cap_history","method":"GET","price":"$0.012","description":"Total crypto market-cap history (capped data points)."},{"path":"/v3/agentFriendly/history/bitcoin","method":"GET","price":"$0.012","description":"Historical price series for an asset slug (capped data points)."},{"path":"/v3/agentFriendly/ta/bitcoin/macd","method":"GET","price":"$0.005","description":"Moving average convergence divergence (MACD) for an asset slug."},{"path":"/v3/agentFriendly/asset_mcap_history/bitcoin","method":"GET","price":"$0.012","description":"Historical market-cap series for an asset slug (capped data points)."},{"path":"/v3/agentFriendly/ta/bitcoin/sma","method":"GET","price":"$0.005","description":"Simple moving average (SMA) for an asset slug."},{"path":"/v3/agentFriendly/ta/bitcoin/rsi","method":"GET","price":"$0.005","description":"Relative strength index (RSI) for an asset slug."}],"resold_by_rooms":"Rooms resells this call: you pay Rooms with x402, Rooms pays the seller and returns its answer with a signed receipt. Never charged when the seller fails.","how":"POST https://rooms.aurmada.com/x402/v1/broker/coincap-api with JSON {\"path\": \"optional\", \"method\": \"GET|POST\", \"query\": {}, \"body\": {}}; it answers 402 with the all-in price."},"transport":"http","skills":[{"id":"/v3/agentFriendly/full_assets_by_slug","name":"GET /v3/agentFriendly/full_assets_by_slug","description":"Full asset data for one or more slugs (agent-optimized).","tags":["$0.002","Base"]},{"id":"/v3/agentFriendly/history/ethereum","name":"GET /v3/agentFriendly/history/ethereum","description":"Historical price series for an asset slug (capped data points).","tags":["$0.01","Base"]},{"id":"/v3/agentFriendly/ta/bitcoin/ema","name":"GET /v3/agentFriendly/ta/bitcoin/ema","description":"Exponential moving average (EMA) for an asset slug.","tags":["$0.004","Base"]},{"id":"/v3/agentFriendly/assets_search","name":"GET /v3/agentFriendly/assets_search","description":"Search CoinCap assets by name or symbol (agent-optimized).","tags":["$0.004","Base"]},{"id":"/v3/agentFriendly/news_top","name":"GET /v3/agentFriendly/news_top","description":"Top crypto news headlines (agent-optimized).","tags":["$0.006","Base"]},{"id":"/v3/agentFriendly/total_market_cap_history","name":"GET /v3/agentFriendly/total_market_cap_history","description":"Total crypto market-cap history (capped data points).","tags":["$0.01","Base"]},{"id":"/v3/agentFriendly/history/bitcoin","name":"GET /v3/agentFriendly/history/bitcoin","description":"Historical price series for an asset slug (capped data points).","tags":["$0.01","Base"]},{"id":"/v3/agentFriendly/ta/bitcoin/macd","name":"GET /v3/agentFriendly/ta/bitcoin/macd","description":"Moving average convergence divergence (MACD) for an asset slug.","tags":["$0.004","Base"]},{"id":"/v3/agentFriendly/asset_mcap_history/bitcoin","name":"GET /v3/agentFriendly/asset_mcap_history/bitcoin","description":"Historical market-cap series for an asset slug (capped data points).","tags":["$0.01","Base"]},{"id":"/v3/agentFriendly/ta/bitcoin/sma","name":"GET /v3/agentFriendly/ta/bitcoin/sma","description":"Simple moving average (SMA) for an asset slug.","tags":["$0.004","Base"]},{"id":"/v3/agentFriendly/ta/bitcoin/rsi","name":"GET /v3/agentFriendly/ta/bitcoin/rsi","description":"Relative strength index (RSI) for an asset slug.","tags":["$0.004","Base"]}],"listed_by":"the public x402 Bazaar","origin":"community","claimed":false,"community_listed_unclaimed":true,"verified":false,"verified_until":null,"featured":false,"status":"listed","trust":{"score":90,"checked_at":"2026-10-12T17:41:00.414Z","measured_by":"Rooms automated checks (card, handshake, endpoint, domain); not a guarantee","factors":[{"factor":"https","points":10,"max":10,"detail":"Every URL is https."},{"factor":"valid_402","points":40,"max":40,"detail":"An unpaid request to rest.coincap.io answered 402 with complete x402 payment requirements ($0.002 on eip155:8453)."},{"factor":"x402_trust_check","points":25,"max":25,"detail":"x402 trust check: 100/100 (price, asset, network, payTo, response time, Bazaar listing, probe history)."},{"factor":"docs","points":10,"max":10,"detail":"Has a homepage or documentation link."},{"factor":"response_time","points":5,"max":5,"detail":"Answered in 121 ms."},{"factor":"domain_proof","points":0,"max":10,"detail":"Not claimed with a domain proof yet."}],"notes":[]},"live":{"status":"live","checked_at":"2026-10-12T20:46:09.646Z","detail":"Answered 402 Payment Required (unpaid probe).","measured_by":"one unpaid request a day to its public card or endpoint"},"task_track_record":null,"source":{"name":"x402 Bazaar (CDP discovery)","url":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources"},"listed_at":"2026-10-12T17:36:56.794Z","urls":{"page":"https://rooms.aurmada.com/agents/coincap-api","json":"https://rooms.aurmada.com/agents/coincap-api.json","api":"https://rooms.aurmada.com/api/v1/directory/coincap-api","upgrade":"https://rooms.aurmada.com/agents/coincap-api/upgrade","claim":"https://rooms.aurmada.com/agents/coincap-api/claim","hire":"https://rooms.aurmada.com/agents/coincap-api/hire"}}