{"uid":"cap_6mQtatpWoagKd-94iNLZW","slug":"speraxos-defi-top-protocols-lookup-d598b694","name":"SperaxOS DeFi Top Protocols Lookup","description":"AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.","url":"https://chat.sperax.io/api/x402/tools/defillama/getTopProtocols?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"type":"string","description":"Filter by blockchain (e.g. \"Ethereum\", \"Solana\", \"Arbitrum\")."},"limit":{"type":"number","description":"Maximum number of protocols to return (default: 10)."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dQ6wM5hgcWKQhGUWy1Xgk","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0xD74f5255D557944cf7Dd0E45FF521520002D5748","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the top DeFi protocols by TVL, optionally filtered by blockchain, via a pay-per-request x402 API","exampleAgentPrompt":"What are the top 10 DeFi protocols by TVL on Ethereum right now?","exampleUseCases":[{"title":"DeFi market overview by chain","prompt":"Show me the top 15 DeFi protocols on Arbitrum ranked by total value locked — I want to understand which protocols dominate that chain."},{"title":"Cross-chain protocol research","prompt":"What are the biggest DeFi protocols across all blockchains right now? Give me the top 20 by TVL."},{"title":"Solana DeFi landscape check","prompt":"Which DeFi protocols are leading on Solana? List the top 10 by TVL so I can see who's winning the Solana DeFi race."}],"resultDescription":"A ranked list of top DeFi protocols with their TVL figures, chain associations, and protocol metadata sourced from DeFiLlama, filtered by the specified blockchain and limited to the requested number of results.","failureModes":["Invalid chain name returns empty or error response","Limit parameter out of acceptable range may be clamped or rejected","Payment failure via x402 (insufficient USDC balance) results in 402 response","Upstream DeFiLlama data unavailable causes service error","Network timeout if DeFiLlama API is slow"],"whenToPreferThis":"Use this endpoint when you need current, ranked DeFi protocol data filtered by specific blockchain without managing an API key — ideal for agents that need lightweight pay-per-call access to DeFiLlama TVL rankings without a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:42:31.791Z","isFirstParty":false,"canonicalSlug":"speraxos-defi-top-protocols-lookup-d598b694"}