{"id":"314173ba-882b-4ce1-a2cf-090df60d8361","shortId":"syBHLP","kind":"x402","title":"Pay-per-use DeFi intelligence API: top liquidity pools via x402 micropayments in USDC.","tagline":"Pay-per-use DeFi intelligence API: top liquidity pools via x402 micropayments in USDC.","description":"Silverback is a DeFi intelligence platform exposing 11 pay-per-use endpoints via the x402 micropayment protocol. The `/api/v1/top-pools` endpoint is part of this suite, though it is not explicitly documented in the OpenAPI spec provided by the server. The broader Silverback API covers swap execution, technical analysis, DeFi yield opportunities, arbitrage scanning, token security audits, whale tracking, wallet portfolios, pool analysis, swap quotes (Base and Solana via Jupiter), and holder analytics. Payments settle in USDC on Base, Solana, or SKALE, with a 15% discount available when paying with the $BACK token via Permit2 on Base.\n\nThe specific `/api/v1/top-pools` endpoint likely returns a ranked list of top liquidity pools, complementing the existing `/api/v1/pool-analysis` endpoint ($0.01/call) which provides deep analysis of individual pools including TVL, APR, health scores, and liquidity ratings. Based on the pricing tiers documented, analysis-tier endpoints cost $0.01 per call. However, probing this endpoint returned 404 on both GET and POST, which may indicate it has been renamed, moved, or is served from the canonical host (`x402.silverbackdefi.app`) rather than the Render deployment origin (`silverback-x402.onrender.com`).\n\nAll Silverback responses include a `success` boolean field. Token identifiers use CoinGecko IDs for market data or 0x contract addresses for on-chain queries. Chain defaults to Base (chain ID 8453) unless otherwise specified.","tags":[],"capabilities":["defi-pool-ranking","liquidity-analysis","x402-micropayments","usdc-settlement","base-chain","solana-chain","skale-chain","pay-per-use"],"categories":["defi","finance","crypto"],"synonyms":["top liquidity pools","pool ranking","DeFi pools","liquidity pool leaderboard","best pools","TVL ranking","pool discovery","Silverback API"],"warnings":["Endpoint returned 404 on both GET and POST at silverback-x402.onrender.com; may only be available at the canonical host x402.silverbackdefi.app","The /api/v1/top-pools path is not listed in the OpenAPI spec — its schema, pricing, and behavior are unknown","The /docs path returns 'Cannot GET /docs', so external documentation is not accessible from this origin","Functionality and response format are inferred from sibling endpoints; no direct evidence available"],"endpointUrl":"https://silverback-x402.onrender.com/api/v1/top-pools","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xD34411a70EffbDd000c529bbF572082ffDcF1794","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"8wLKe8H59eni5DmERU27GiRHGnN9fogRoq9yNqyKKNJA"},"payTo":"4HVvnhyXTkMnPbMBo9r3kfvYhzW4JSbLGdXg9SkUcVSe","amount":"5000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300},{"asset":"0x85889c8c714505E0c94b30fcfcF64fE3Ac8FCb20","extra":{"name":"USD Coin","version":"1"},"payTo":"0xD34411a70EffbDd000c529bbF572082ffDcF1794","amount":"5000","scheme":"exact","network":"eip155:1187947933","maxTimeoutSeconds":300},{"asset":"USDC","extra":{"symbol":"USDC","nodeUrl":"https://api.keeta.com","decimals":6,"serverAddress":"keeta_aabwgiqyij4scwktdoczzvhpi33btieeses5sezeqzqmpi5ik76ttyegwuvfsai","permissionSetupUrl":"/api/v1/keeta/setup-permission"},"payTo":"keeta_aabaolle2k3hceayy4vkyw7smgl35o5wbqeebt2fibyx5sxxodneqb2rmwqkjci","amount":"5000","scheme":"keeta-usdc","network":"keeta:main","expiresAt":1771370264981,"paymentId":"6c7f8b8a-98b4-4db0-81b9-dafe1a31d037","amountHuman":"0.005000","description":"Top yielding pools on Base DEXes","tokenAddress":"keeta_amnkge74xitii5dsobstldatv3irmyimujfjotftx7plaaaseam4bntb7wnna","maxTimeoutSeconds":300,"requiresPermission":true}]},"qualityScore":"0.300","qualityRationale":"The /api/v1/top-pools endpoint is not present in the OpenAPI spec and returned 404 on both GET and POST probes against the Render origin. It may only be live on the canonical host (x402.silverbackdefi.app) or may have been removed/renamed. No request/response schema is available for this specific 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'/api/v1/top-pools':50,130 '/call':147 '0.01':146,174 '0x':228 '11':38 '15':115 '404':182 '8453':242 'DeFi pools' 'Silverback API' 'TVL ranking' 'address':230 'analysi':79,93,151,170 'analysis-ti':169 'analyt':103 'api':7,22,74 'apr':157 'arbitrag':83 'audit':87 'avail':117 'back':122 'base':96,109,127,163,239 'base-chain' 'best pools' 'boolean':217 'broader':72 'call':176 'canon':201 'chain':234,236,240 'coingecko':222 'complement':141 'contract':229 'cost':173 'cover':75 'data':226 'deep':150 'default':237 'defi':5,20,34,80 'defi-pool-ranking' 'deploy':208 'discount':116 'document':62,168 'endpoint':43,51,131,145,172,180 'execut':77 'exist':143 'explicit':61 'expos':37 'field':218 'get':185 'health':158 'holder':102 'host':202 'howev':177 'id':223,241 'identifi':220 'includ':155,214 'indic':190 'individu':153 'intellig':6,21,35 'jupit':100 'like':132 'liquid':9,24,139,161 'liquidity pool leaderboard' 'liquidity-analysis' 'list':136 'market':225 'may':189 'micropay':13,28,47 'move':195 'on-chain':232 'openapi':65 'opportun':82 'origin':209 'otherwis':244 'part':53 'pay':2,17,40,119 'pay-per-us':1,16,39 'pay-per-use' 'payment':104 'per':3,18,41,175 'permit2':125 'platform':36 'pool':10,25,92,140,154 'pool discovery' 'pool ranking' 'portfolio':91 'post':187 'price':166 'probe':178 'protocol':48 'provid':67,149 'queri':235 'quot':95 'rank':135 'rate':162 'rather':204 'renam':194 'render':207 'respons':213 'return':133,181 'scan':84 'score':159 'secur':86 'serv':198 'server':70 'settl':105 'silverback':31,73,212 'silverback-x402.onrender.com':210 'skale':112 'skale-chain' 'solana':98,110 'solana-chain' 'spec':66 'specif':129 'specifi':245 'success':216 'suit':56 'swap':76,94 'technic':78 'though':57 'tier':167,171 'token':85,123,219 'top':8,23,138 'top liquidity pools' 'track':89 'tvl':156 'unless':243 'usdc':15,30,107 'usdc-settlement' 'use':4,19,42,221 'via':11,26,44,99,124 'wallet':90 'whale':88 'x402':12,27,46 'x402-micropayments' 'x402.silverbackdefi.app':203 'yield':81","prices":[{"id":"dda42fd3-d557-4fee-b3c3-5081877d819e","listingId":"314173ba-882b-4ce1-a2cf-090df60d8361","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0xD34411a70EffbDd000c529bbF572082ffDcF1794","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xD34411a70EffbDd000c529bbF572082ffDcF1794","amount":"5000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"8wLKe8H59eni5DmERU27GiRHGnN9fogRoq9yNqyKKNJA"},"payTo":"4HVvnhyXTkMnPbMBo9r3kfvYhzW4JSbLGdXg9SkUcVSe","amount":"5000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300},{"asset":"0x85889c8c714505E0c94b30fcfcF64fE3Ac8FCb20","extra":{"name":"USD Coin","version":"1"},"payTo":"0xD34411a70EffbDd000c529bbF572082ffDcF1794","amount":"5000","scheme":"exact","network":"eip155:1187947933","maxTimeoutSeconds":300},{"asset":"USDC","extra":{"symbol":"USDC","nodeUrl":"https://api.keeta.com","decimals":6,"serverAddress":"keeta_aabwgiqyij4scwktdoczzvhpi33btieeses5sezeqzqmpi5ik76ttyegwuvfsai","permissionSetupUrl":"/api/v1/keeta/setup-permission"},"payTo":"keeta_aabaolle2k3hceayy4vkyw7smgl35o5wbqeebt2fibyx5sxxodneqb2rmwqkjci","amount":"5000","scheme":"keeta-usdc","network":"keeta:main","expiresAt":1771370264981,"paymentId":"6c7f8b8a-98b4-4db0-81b9-dafe1a31d037","amountHuman":"0.005000","description":"Top yielding pools on Base DEXes","tokenAddress":"keeta_amnkge74xitii5dsobstldatv3irmyimujfjotftx7plaaaseam4bntb7wnna","maxTimeoutSeconds":300,"requiresPermission":true}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:33.369Z"}],"sources":[{"listingId":"314173ba-882b-4ce1-a2cf-090df60d8361","source":"x402_bazaar","sourceId":"https://silverback-x402.onrender.com/api/v1/top-pools","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:33.369Z","lastSeenAt":"2026-04-22T04:02:48.023Z"}],"details":{"listingId":"314173ba-882b-4ce1-a2cf-090df60d8361","quickStartSnippet":"# 1. Probe the endpoint to get the x402 payment challenge\ncurl -X GET https://x402.silverbackdefi.app/api/v1/top-pools\n# 2. Returns 402 with `accepts` array describing USDC payment options\n# 3. Sign a USDC authorization per x402 protocol, resend with payment proof header","exampleRequest":null,"exampleResponse":null,"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Silverback provides 11 pay-per-use DeFi intelligence endpoints via x402 micropayments","source_url":"https://silverback-x402.onrender.com"},{"claim":"Payments settle in USDC on Base, Solana, or SKALE with 15% discount for $BACK token","source_url":"https://silverback-x402.onrender.com"},{"claim":"Analysis-tier endpoints (pool-analysis, swap-quote, jupiter-quote, holder-analytics) cost $0.01 per call","source_url":"https://silverback-x402.onrender.com"},{"claim":"The canonical server URL is x402.silverbackdefi.app per the OpenAPI spec","source_url":"https://silverback-x402.onrender.com"},{"claim":"The /api/v1/top-pools endpoint returned 404 on both POST and GET probes","source_url":"https://silverback-x402.onrender.com/api/v1/top-pools"}],"useCases":["Discovering the highest-TVL or highest-APR liquidity pools across DEXes","Screening pools before providing liquidity in automated DeFi strategies","Feeding pool rankings into an AI agent's yield optimization pipeline","Monitoring top pool changes over time for portfolio rebalancing"],"bestFor":["AI agents needing on-demand DeFi pool intelligence without subscriptions","Automated yield-farming strategies that need pool discovery","Developers building DeFi dashboards with pay-per-call economics"],"notFor":["Users needing free or subscription-based unlimited API access","Non-crypto applications with no DeFi context","Real-time streaming pool data (this is a request-response API)"],"kindDetails":{},"updatedAt":"2026-04-22T00:49:19.149Z"}}