{"id":"1e59e1ce-033d-42d0-9277-c81cd1eb1b15","shortId":"r4JsZg","kind":"x402","title":"Query DeFi liquidity pool data (prices, TVL, volumes, fees) across Arbitrum, Base, and Ethereum via x402.","tagline":"Query DeFi liquidity pool data (prices, TVL, volumes, fees) across Arbitrum, Base, and Ethereum via x402.","description":"This x402-gated endpoint from Nacian provides detailed information about specific liquidity pools across multiple EVM chains. According to the listing description, it covers Arbitrum, Base, and Ethereum, returning token prices, TVL, volumes, fees, and other pool metrics. Supported exchanges include Uniswap V2/V3/V4, PancakeSwap V2, SushiSwap V2/V3, and Camelot V3, depending on the chain.\n\nNacian's broader platform is an AI-powered DeFi analyzer that translates natural-language questions into protocol queries. The company also offers a web-based analyzer with alert functionality and data export. This particular endpoint appears to be a standalone REST API for pool information, intended for programmatic access by agents or developers who need structured pool data without using the conversational interface.\n\nImportant caveat: during probing, the endpoint returned HTTP 404 on both GET and POST requests rather than the expected 402 payment challenge. This means the endpoint may have been moved, renamed, or is not currently live at the advertised URL. The Nacian docs page at /docs also returns 404, and the site's robots.txt disallows /api/. No OpenAPI schema or x402 challenge details (price, token, network) were captured, so pricing and request/response formats cannot be confirmed.","tags":[],"capabilities":["defi-pool-info","liquidity-pool-analytics","multi-chain-query","token-price-lookup","tvl-tracking","volume-tracking","fee-analytics","uniswap-data","sushiswap-data","pancakeswap-data","camelot-data"],"categories":["defi","crypto","data"],"synonyms":["liquidity pool API","DeFi pool data","Uniswap pool info","DEX analytics","on-chain pool metrics","TVL API","pool volume API","AMM pool data"],"warnings":["Endpoint returned HTTP 404 on both GET and POST — it may have been moved, removed, or renamed. Not confirmed live.","No x402 payment challenge was captured, so pricing (token, amount, network) is unknown.","No OpenAPI or schema documentation found; /docs returns 404.","robots.txt disallows /api/ which may indicate the API path is not intended for public crawling.","The site appears to be transitioning from nacian.finance to nacian.app — endpoint URL may have changed."],"endpointUrl":"https://nacian.finance/api/x402/pools/pool-info","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xC231db8a696d922f82e32Ed2BBdd492105E7db41","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://nacian.finance/api/x402/pools/pool-info","description":"Access detailed information (including token prices, tvl, volumes, fees and more) about specific liquidity pools across multiple chains (Arbitrum, Base, Ethereum). Exchanges supported on Ethereum include Uniswap V2 / V4, Pancake V2 and Sushiswap V2 / V3. Exchanges supported on Arbitrum include Uniswap V4, Sushiswap V2 / V3 and Camelot V3. Exchanges supported on Base include Uniswap V2 / V3 / V4 and Sushiswap V3.","outputSchema":{"input":{"type":"http","method":"GET","queryParams":{"chain":"string","poolId":"string"},"discoverable":true},"output":{"schema":{"data":{"chain":"string","protocol":"string","poolInformations":"object"},"chain":"string","request":{"chain":"string","poolId":"string"},"success":"boolean","timestamp":"string"},"isDiscoverable":true}},"maxAmountRequired":"10000","maxTimeoutSeconds":90}]},"qualityScore":"0.150","qualityRationale":"The endpoint returned 404 on both GET and POST probes, so no x402 challenge was captured. No OpenAPI schema, no request/response examples, and no pricing information are available. The docs page is also 404. Only the Bazaar listing description provides any detail about what the endpoint 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'/docs':199 '402':173 '404':162,202 'AMM pool data' 'DEX analytics' 'DeFi pool data' 'TVL API' 'Uniswap pool info' 'access':139 'accord':51 'across':10,26,47 'advertis':192 'agent':141 'ai':95 'ai-pow':94 'alert':118 'also':110,200 'analyz':98,116 'api':132 'appear':126 'arbitrum':11,27,58 'base':12,28,59,115 'broader':90 'camelot':82 'camelot-data' 'cannot':227 'captur':221 'caveat':155 'chain':50,87 'challeng':175,215 'compani':109 'confirm':229 'convers':152 'cover':57 'current':188 'data':5,21,121,148 'defi':2,18,97 'defi-pool-info' 'depend':84 'descript':55 'detail':41,216 'develop':143 'disallow':208 'doc':196 'endpoint':37,125,159,179 'ethereum':14,30,61 'evm':49 'exchang':73 'expect':172 'export':122 'fee':9,25,67 'fee-analytics' 'format':226 'function':119 'gate':36 'get':165 'http':161 'import':154 'includ':74 'inform':42,135 'intend':136 'interfac':153 'languag':103 'liquid':3,19,45 'liquidity pool API' 'liquidity-pool-analytics' 'list':54 'live':189 'may':180 'mean':177 'metric':71 'move':183 'multi-chain-query' 'multipl':48 'nacian':39,88,195 'natur':102 'natural-languag':101 'need':145 'network':219 'offer':111 'on-chain pool metrics' 'openapi':211 'page':197 'pancakeswap':77 'pancakeswap-data' 'particular':124 'payment':174 'platform':91 'pool':4,20,46,70,134,147 'pool volume API' 'post':167 'power':96 'price':6,22,64,217,223 'probe':157 'programmat':138 'protocol':106 'provid':40 'queri':1,17,107 'question':104 'rather':169 'renam':184 'request':168 'request/response':225 'rest':131 'return':62,160,201 'robots.txt':207 'schema':212 'site':205 'specif':44 'standalon':130 'structur':146 'support':72 'sushiswap':79 'sushiswap-data' 'token':63,218 'token-price-lookup' 'translat':100 'tvl':7,23,65 'tvl-tracking' 'uniswap':75 'uniswap-data' 'url':193 'use':150 'v2':78 'v2/v3':80 'v2/v3/v4':76 'v3':83 'via':15,31 'volum':8,24,66 'volume-tracking' 'web':114 'web-bas':113 'without':149 'x402':16,32,35,214 'x402-gated':34","prices":[{"id":"7f2b4b4d-8d6e-4532-b545-4faa7b8a0b91","listingId":"1e59e1ce-033d-42d0-9277-c81cd1eb1b15","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"10000","chain":"base","payTo":"0xC231db8a696d922f82e32Ed2BBdd492105E7db41","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xC231db8a696d922f82e32Ed2BBdd492105E7db41","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://nacian.finance/api/x402/pools/pool-info","description":"Access detailed information (including token prices, tvl, volumes, fees and more) about specific liquidity pools across multiple chains (Arbitrum, Base, Ethereum). Exchanges supported on Ethereum include Uniswap V2 / V4, Pancake V2 and Sushiswap V2 / V3. Exchanges supported on Arbitrum include Uniswap V4, Sushiswap V2 / V3 and Camelot V3. Exchanges supported on Base include Uniswap V2 / V3 / V4 and Sushiswap V3.","outputSchema":{"input":{"type":"http","method":"GET","queryParams":{"chain":"string","poolId":"string"},"discoverable":true},"output":{"schema":{"data":{"chain":"string","protocol":"string","poolInformations":"object"},"chain":"string","request":{"chain":"string","poolId":"string"},"success":"boolean","timestamp":"string"},"isDiscoverable":true}},"maxAmountRequired":"10000","maxTimeoutSeconds":90}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":90},"createdAt":"2026-04-21T18:32:29.950Z"}],"sources":[{"listingId":"1e59e1ce-033d-42d0-9277-c81cd1eb1b15","source":"x402_bazaar","sourceId":"https://nacian.finance/api/x402/pools/pool-info","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:29.950Z","lastSeenAt":"2026-04-22T02:32:11.878Z"}],"details":{"listingId":"1e59e1ce-033d-42d0-9277-c81cd1eb1b15","quickStartSnippet":"# Endpoint returned 404 during probing — may not be live.\n# Expected x402 flow (hypothetical):\ncurl -X GET \"https://nacian.finance/api/x402/pools/pool-info?chain=ethereum&pool=0xABC...\" \\\n  -H \"X-Payment: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","queryParams":{"chain":"string","poolId":"string"},"discoverable":true},"output":{"schema":{"data":{"chain":"string","protocol":"string","poolInformations":"object"},"chain":"string","request":{"chain":"string","poolId":"string"},"success":"boolean","timestamp":"string"},"isDiscoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Supported exchanges on Ethereum include Uniswap V2/V4, PancakeSwap V2, and SushiSwap V2/V3; on Arbitrum: Uniswap V4, SushiSwap V2/V3, Camelot V3; on Base: Uniswap V2/V3/V4 and SushiSwap V3.","source_url":"https://nacian.finance/api/x402/pools/pool-info"},{"claim":"Nacian's platform supports 14+ networks and provides protocol analytics, network data, and on-chain smart contract insights.","source_url":"https://nacian.finance"},{"claim":"Nacian pricing starts free (20 credits), Basic at $12/month (1000 credits), Pro at $30/month (3000 credits).","source_url":"https://nacian.finance/pricing"},{"claim":"robots.txt disallows /api/ path","source_url":"https://nacian.finance"}],"useCases":["Retrieving real-time TVL and volume for a specific Uniswap V3 pool on Ethereum","Comparing fee generation across SushiSwap pools on Arbitrum","Monitoring token prices within liquidity pools on Base","Building dashboards that aggregate DEX pool metrics across chains","Feeding pool data into trading bots or portfolio management agents"],"bestFor":["DeFi traders needing structured pool analytics across multiple DEXes","Developers building multi-chain DeFi dashboards or aggregators","AI agents that need programmatic access to liquidity pool metrics"],"notFor":["Non-EVM chain pool data (Solana, Cosmos, etc.)","Historical time-series analytics (no evidence of time-range support in this endpoint)","Users needing a conversational DeFi analysis interface (use Nacian's web analyzer instead)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:12:53.928Z"},"updatedAt":"2026-04-22T02:32:11.878Z"}}