{"uid":"cap_d3BfEqB07Uznk_M7TUugo","slug":"data-crestsystems-ai-fda9d279","name":"Crest DeFi Ecosystem Overview","description":"Crest · defi_overview -- Fetch DeFi ecosystem data for a specific blockchain. Returns total TVL, top 10 protocols by TVL with 24h change and category classification.","url":"https://data.crestsystems.ai/data/defi/:chain","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"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["chain"],"properties":{"chain":{"type":"string","description":"Chain name: base, ethereum, solana, arbitrum, polygon"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"chain":"ethereum"}}},"response":{"defi":{"tvl":39191396017.06714,"chain":"Ethereum","chainId":1,"protocols":[{"tvl":139937266248.36462,"name":"Binance CEX","chains":32,"category":"CEX","change_1d":-1.3396647343267318},{"tvl":22089683347.911407,"name":"OKX","chains":19,"category":"CEX","change_1d":-1.2411861241784976},{"tvl":16731790153.475348,"name":"Bitfinex","chains":20,"category":"CEX","change_1d":-1.533440944489044},{"tvl":15691871462.133108,"name":"Lido","chains":5,"category":"Liquid Staking","change_1d":-2.7781923880028927},{"tvl":14095017977.634386,"name":"Bybit","chains":36,"category":"CEX","change_1d":-1.5370479425267547},{"tvl":12834664560.368511,"name":"SSV Network","chains":1,"category":"Staking Pool","change_1d":-2.822294325778543},{"tvl":12423462973.562727,"name":"Aave V3","chains":21,"category":"Lending","change_1d":-1.88528824983662},{"tvl":11407097446.288551,"name":"Robinhood","chains":4,"category":"CEX","change_1d":-2.8135228995586488},{"tvl":7614421528.94397,"name":"LayerZero V2","chains":60,"category":"Bridge","change_1d":-0.22325056722665693},{"tvl":6988791465.596037,"name":"Morpho Blue","chains":38,"category":"Lending","change_1d":-2.018481512321401}]},"paid":true,"price":"$0.003"}},"exampleRequest":{"chain":"ethereum"},"tags":["x402"],"displayCostAmount":"0.003000","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wnkE_NsVChXHW2PPDDT6n","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches DeFi ecosystem data for a specific blockchain, returning total TVL and the top 10 protocols ranked by TVL with 24-hour change and category classification.","exampleAgentPrompt":"Give me the DeFi ecosystem overview for Ethereum — total TVL, the top 10 protocols by TVL, their 24-hour changes, and what category each one falls into.","exampleUseCases":null,"resultDescription":"Returns the total TVL for the specified blockchain and a ranked list of the top 10 DeFi protocols by TVL, each with their current TVL value, 24-hour percentage change, and category classification (e.g. DEX, lending, yield).","failureModes":["Unsupported chain name returns an error or empty result — only base, ethereum, solana, arbitrum, polygon are supported","Payment not fulfilled results in 402 response","Chain parameter missing causes a 400 bad request","Upstream data provider outage may return stale or empty TVL data"],"whenToPreferThis":"Use this endpoint when you need a fast, chain-specific DeFi ecosystem snapshot including total TVL and protocol-level breakdown with recent momentum (24h change). Prefer it over generic crypto price endpoints when the user's question is specifically about DeFi protocol health, TVL rankings, or ecosystem composition on a particular chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T16:28:46.440Z","isFirstParty":false}