{"id":"0c981b95-00cf-478a-add5-1f31a455a8b4","shortId":"AMpbc5","kind":"x402","title":"DeFi liquidity data for FLOW token, paid per-call via x402 on Base network.","tagline":"DeFi liquidity data for FLOW token, paid per-call via x402 on Base network.","description":"This endpoint at lowpaymentfee.com provides DeFi liquidity data for the FLOW token. It is part of a broader API platform that offers data & analytics, AI/ML inference, finance/Web3, and infrastructure endpoints, all payable per-request via the x402 protocol on the Base network using USDC.\n\nThe specific endpoint `/api/v1/defi/FLOW/liquidity` accepts POST requests and returns JSON. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0.02 USD per request), consistent with the platform's uniform $0.02/request pricing. Payment is settled on-chain on Base to the specified wallet address, with no API keys, rate limits, or subscriptions required.\n\nDocumentation is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical detail. The exact request body schema and response format for this liquidity endpoint are not documented anywhere in the crawled material. The endpoint is live (returning a valid 402 challenge), but without request/response examples or field-level documentation, integrators will need to experiment to determine the expected input and output structure.","tags":[],"capabilities":["defi-liquidity-data","flow-token","x402-payment","usdc-settlement","base-network","per-request-pricing","no-api-key","json-response"],"categories":["defi","finance"],"synonyms":["FLOW liquidity","DeFi liquidity API","FLOW token liquidity","crypto liquidity data","decentralized finance liquidity","FLOW DeFi","token liquidity endpoint"],"warnings":["No request body schema documented — callers must guess or reverse-engineer the expected input","No response schema or example available — the actual data returned is unknown","All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no content","The endpoint path /api/v1/defi/FLOW/liquidity is not listed on the provider's homepage; only finance and crypto endpoints are shown, raising questions about whether this is a fully supported route"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/FLOW/liquidity","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/defi/FLOW/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming it exists and accepts payment. However, there is zero documentation on request parameters, response schema, or what 'liquidity' data is actually returned. The docs/pricing/API pages are all blank beyond a wallet-connect prompt. This is effectively a stub 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'/request':111 '0.02':100,110 '000':95 '20':94 '402':184 'DeFi liquidity API' 'FLOW DeFi' 'FLOW liquidity' 'FLOW token liquidity' 'accept':80 'address':125 'ai/ml':55 'analyt':54 'anywher':172 'api':49,128,143 'base':14,29,72,96,120 'base-network' 'bodi':160 'broader':48 'call':10,25 'chain':118 'challeng':88,185 'connect':149 'consist':104 'cost':92 'crawl':175 'crypto liquidity data' 'data':3,18,38,53 'decentralized finance liquidity' 'defi':1,16,36 'defi-liquidity-data' 'detail':156 'determin':201 'doc':140 'document':135,171,194 'endpoint':32,60,78,168,178 'exact':158 'exampl':189 'expect':203 'experi':199 'extrem':137 'field':192 'field-level':191 'finance/web3':57 'flow':5,20,41 'flow-token' 'format':164 'indic':89 'infer':56 'infrastructur':59 'input':204 'integr':195 'json':85 'json-response' 'key':129 'level':193 'limit':131 'liquid':2,17,37,167 'live':180 'lowpaymentfee.com':34 'materi':176 'maximum':91 'need':197 'network':15,30,73 'no-api-key' 'offer':52 'on-chain':116 'output':206 'page':144 'paid':7,22 'part':45 'payabl':62 'payment':113 'per':9,24,64,102 'per-cal':8,23 'per-request':63 'per-request-pricing' 'platform':50,107 'post':81 'price':112,141 'prompt':151 'protocol':69 'provid':35 'rate':130 'render':146 'request':65,82,103,159 'request/response':188 'requir':134 'respons':163 'return':84,181 'schema':161 'settl':115 'spars':138 'specif':77 'specifi':123 'structur':207 'subscript':133 'technic':155 'token':6,21,42 'token liquidity endpoint' 'uniform':109 'unit':97 'usd':101 'usdc':75,99 'usdc-settlement' 'use':74 'valid':183 'via':11,26,66 'wallet':124,150 'without':187 'x402':12,27,68,87 'x402-payment'","prices":[{"id":"a9e64526-87e7-4adc-9b6c-2bc4b113a6b6","listingId":"0c981b95-00cf-478a-add5-1f31a455a8b4","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/defi/FLOW/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:34:55.748Z"}],"sources":[{"listingId":"0c981b95-00cf-478a-add5-1f31a455a8b4","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/FLOW/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:55.748Z","lastSeenAt":"2026-04-22T23:00:51.185Z"}],"details":{"listingId":"0c981b95-00cf-478a-add5-1f31a455a8b4","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/FLOW/liquidity \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/defi/FLOW/liquidity"},{"claim":"Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base with 6 decimals","source_url":"https://lowpaymentfee.com"}],"useCases":["Querying real-time liquidity information for the FLOW token across DeFi protocols","Building dashboards that track FLOW liquidity depth","Automated trading bots that need liquidity data before executing FLOW trades","Portfolio analytics tools incorporating DeFi liquidity metrics"],"bestFor":["Agents or apps needing on-demand FLOW liquidity data without API key management","Developers who prefer pay-per-call crypto-native payment over subscriptions","Programmatic access to DeFi liquidity metrics at low per-request cost"],"notFor":["Users needing comprehensive DeFi analytics across many tokens in a single call","Anyone requiring detailed API documentation or guaranteed SLAs before integrating","High-frequency use cases where $0.02/request adds up significantly"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:52.263Z"},"updatedAt":"2026-04-22T23:00:51.185Z"}}