{"id":"4fd5f23b-6a4d-420c-bbe3-3c913962edef","shortId":"yZC7ht","kind":"x402","title":"OCEAN token liquidity data via x402 micropayment on Base network for $0.02/request.","tagline":"OCEAN token liquidity data via x402 micropayment on Base network for $0.02/request.","description":"This endpoint at lowpaymentfee.com provides DeFi liquidity data for the OCEAN token. It is part of a broader suite of pay-per-request APIs offered by lowpaymentfee.com, spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network at $0.02 per request.\n\nThe specific endpoint `/api/v1/defi/OCEAN/liquidity` accepts POST requests and returns JSON. The x402 challenge confirms the endpoint is live, requiring a payment of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. No API keys or rate limits are advertised; access is gated purely by the x402 micropayment. The payment recipient address is 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a max timeout of 300 seconds.\n\nDocumentation is extremely sparse. The landing page lists available API categories and pricing, but the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the OCEAN liquidity response contains or what parameters the POST body accepts. The endpoint appears functional based on the 402 challenge, but the lack of documentation makes it difficult to use without experimentation.","tags":[],"capabilities":["defi-liquidity-data","ocean-token","x402-micropayment","usdc-payment","base-network","pay-per-request","no-api-key"],"categories":["defi","finance"],"synonyms":["OCEAN liquidity","OCEAN token liquidity","DeFi liquidity API","OCEAN pool data","token liquidity endpoint","x402 DeFi API"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'","No request body schema or response schema provided; callers must guess at parameters","The /api/v1/defi/OCEAN/liquidity endpoint is not listed on the provider's landing page, raising questions about whether it is a fully supported route","No information on data sources, update frequency, or coverage for OCEAN liquidity"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/OCEAN/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/OCEAN/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge confirms the endpoint is live and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages render only 'Connect wallet' with no usable content. The OCEAN liquidity endpoint itself is not even listed on the landing page, making its existence inferrable only from the URL pattern. This is effectively a stub 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'/request':13,26 '0.02':12,25,82,119 '000':108 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':146 '0x8335':113 '20':107 '2913':114 '300':152 '402':219 '6':123 'DeFi liquidity API' 'OCEAN liquidity' 'OCEAN pool data' 'OCEAN token liquidity' 'accept':89,211 'access':133 'address':144 'advertis':132 'ai/ml':58 'analyt':57 'api':51,126,163,170 'appear':214 'avail':162 'base':9,22,79,109,116,216 'base-network' 'bodi':210 'broader':44 'categori':164 'challeng':97,220 'confirm':98 'connect':179 'contain':204 'content':185 'data':4,17,34,56 'decim':124 'defi':32 'defi-liquidity-data' 'descript':196 'difficult':228 'doc':169 'document':154,225 'endpoint':28,65,87,100,213 'equal':118 'exampl':193 'experiment':232 'extrem':156 'field':199 'finance/web3':60 'function':215 'gate':135 'given':120 'infer':59 'infrastructur':62 'json':94 'key':127 'lack':223 'land':159 'limit':130 'liquid':3,16,33,202 'list':161 'live':102 'lowpaymentfee.com':30,54 'make':226 'max':149 'micropay':7,20,140 'network':10,23,80 'no-api-key' 'ocean':1,14,37,201 'ocean-token' 'offer':52 'openapi':189 'page':160,174 'paramet':207 'part':41 'pay':48 'pay-per-request':47 'payment':72,105,142 'per':49,83 'platform':68 'post':90,209 'price':166,171 'prompt':181 'protocol':73 'provid':31 'pure':136 'rate':129 'readm':173 'recipi':143 'render':176 'request':50,84,91 'request/response':192 'requir':103 'respons':203 'return':93 'schema':190 'second':153 'settl':74 'span':55 'spars':157 'specif':86 'suit':45 'timeout':150 'token':2,15,38 'token liquidity endpoint' 'unit':110 'usdc':76,112,121 'usdc-payment' 'use':69,230 'util':63 'via':5,18 'wallet':180 'without':231 'x402':6,19,71,96,139 'x402 DeFi API' 'x402-micropayment'","prices":[{"id":"fb0f8aa8-980c-40a3-8cd4-8106ed179c6e","listingId":"4fd5f23b-6a4d-420c-bbe3-3c913962edef","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/OCEAN/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":"2026-04-18T18:37:19.716Z"}],"sources":[{"listingId":"4fd5f23b-6a4d-420c-bbe3-3c913962edef","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/OCEAN/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:37:19.716Z","lastSeenAt":"2026-04-22T21:30:32.081Z"}],"details":{"listingId":"4fd5f23b-6a4d-420c-bbe3-3c913962edef","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/OCEAN/liquidity \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge requiring 20,000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/defi/OCEAN/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":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/defi/OCEAN/liquidity"}],"useCases":["Querying real-time OCEAN token liquidity across DeFi protocols","Building trading bots that need liquidity depth data before executing swaps","Monitoring OCEAN liquidity pools for analytics dashboards","Integrating OCEAN liquidity checks into agent-driven DeFi workflows"],"bestFor":["Agents or bots needing on-demand OCEAN liquidity data without API key management","Developers who prefer pay-per-call pricing with no subscriptions","x402-compatible clients on the Base network"],"notFor":["Users needing comprehensive multi-token liquidity aggregation in a single call","Anyone requiring detailed API documentation or guaranteed SLAs before integration","Free-tier or high-volume bulk data consumers (every call costs $0.02)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:45.241Z"},"updatedAt":"2026-04-22T21:30:32.081Z"}}