{"uid":"cap_liCJA4tdv3MuzvINaOMAx","slug":"crypto-market-top-20-by-market-cap-2e39e5bf","name":"Crypto Market Top 20 by Market Cap","description":"Top 20 cryptocurrencies by market cap with 24h change","url":"https://etherealgoodsco.store/finance/crypto-market","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":[],"properties":{}},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5FNGLXhbsKc18Zds4Qima","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the top 20 cryptocurrencies ranked by market cap, including 24-hour price change data","exampleAgentPrompt":"Can you pull up the top 20 cryptocurrencies ranked by market cap right now, and show me how each one has performed in the last 24 hours?","exampleUseCases":[{"title":"Daily crypto market briefing","prompt":"Give me a quick rundown of the top 20 cryptos by market cap and which ones are up or down the most today — I like to check this every morning before trading."},{"title":"Portfolio context check","prompt":"I hold BTC, ETH, and SOL — can you pull the current top 20 crypto market cap rankings so I can see where my coins stand and how the whole market is trending in the last 24 hours?"},{"title":"Crypto market dashboard widget","prompt":"Fetch the latest top 20 cryptocurrencies by market cap with their 24-hour price changes so I can display them on my finance dashboard."}],"resultDescription":"A ranked list of the top 20 cryptocurrencies by market capitalization, including each coin's name, ticker symbol, current price, market cap value, and 24-hour percentage price change.","failureModes":["Upstream market data provider unavailable — stale or empty response","Rate limiting or payment validation failure returning 402 or 429 error","Partial data returned if one or more coin data sources are temporarily unavailable","Response latency spikes during high-volatility market events"],"whenToPreferThis":"Choose this endpoint when you need a quick, ranked overview of the top 20 cryptocurrencies by market cap with 24h change data in a single call. Prefer it over per-coin detail endpoints (like CoinGecko full token detail) when you want a broad market snapshot rather than deep metadata on a single asset. Ideal for dashboards, market briefings, or agents that need to assess overall crypto market sentiment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:41:30.241Z","isFirstParty":false}