{"uid":"cap_0A4rPD5Gs12nCRloLvJqp","slug":"crypto-market-signal-x402-pay-per-call-2c53d428","name":"Crypto Market Signal — x402 Pay-Per-Call","description":"Structured crypto market signal: for each CoinGecko id return price, market cap, 24h change, 24h volume, plus a derived momentum score (-100..100), a bullish/neutral/bearish signal, and a volatility flag — enriched data an agent ingests in a trading/research loop without computing it itself. Input: ids (comma-separated).","url":"https://x402.charliemorrison.dev/signal","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["ids"],"properties":{"ids":{"type":"string","description":"Comma-separated CoinGecko ids, max 25"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"count":{"type":"number"},"assets":{"type":"array","items":{"type":"object"}},"source":{"type":"string"}}}}}}},"responseSchema":{"type":"json","example":{"count":1,"assets":[{"id":"bitcoin","signal":"neutral","momentum":31,"price_usd":65000,"volatility":"calm","change_24h_pct":1.6}],"source":"coingecko"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_x3JUnzzZouLJhExbpz2uv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time crypto market signals (momentum, volatility, price, 24h change) for one or more CoinGecko asset IDs, settled per call via USDC on Base.","exampleAgentPrompt":"What's the current market signal, momentum, and volatility for bitcoin, ethereum, and solana right now?","exampleUseCases":null,"resultDescription":"A JSON object with a count of assets returned, a source field ('coingecko'), and an array of asset objects each containing: id, signal (e.g. neutral/bullish/bearish), momentum score (0-100 integer), current price in USD, volatility label (e.g. calm/volatile), and 24-hour percent change.","failureModes":["Invalid or unknown CoinGecko IDs return an error or empty assets array","More than 25 IDs in the query exceeds the max limit","Missing required 'ids' query parameter returns a 400 or validation error","Payment failure via x402 (insufficient USDC balance or network error) results in 402 response with no data","CoinGecko upstream unavailability may cause delayed or missing data"],"whenToPreferThis":"Choose this endpoint when you need a fast, lightweight crypto market signal with momentum and volatility context without managing API keys — ideal for AI agents that need per-call pricing via USDC on Base and want a synthesized signal rather than raw ticker data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:37:40.509Z","isFirstParty":false}