{"id":"0cc5860a-a966-4db9-bcde-f34be2625de4","shortId":"QWkeAS","kind":"x402","title":"DOGE liquidity data via x402 micropayment on Base network, $0.02 per request.","tagline":"DOGE liquidity data via x402 micropayment on Base network, $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides DeFi liquidity data for DOGE (Dogecoin) via the x402 payment protocol. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance, crypto, and utility services. Each request costs $0.02, settled in USDC on the Base network with no API keys, rate limits, or upfront commitments required.\n\nThe endpoint accepts HTTP POST requests and returns JSON. The x402 challenge was successfully captured, confirming the endpoint is live. The payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the liquidity endpoint accepts or returns. The endpoint's actual behavior (e.g., what liquidity metrics it provides for DOGE, which DEXs or pools it covers) is unknown from the available material.","tags":[],"capabilities":["defi-liquidity-data","doge-liquidity","x402-micropayment","usdc-base-settlement","pay-per-request","no-api-key"],"categories":["defi","crypto","finance"],"synonyms":["DOGE liquidity","Dogecoin liquidity pool","DeFi liquidity API","DOGE DeFi data","crypto liquidity endpoint","Dogecoin pool data"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","Docs, API, pricing, and README pages all show only 'Connect wallet' with no technical content","Actual DOGE liquidity data coverage (DEXs, chains, fields) is unspecified","Provider appears to host many generic endpoint categories; quality and depth of data is unverified"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/DOGE/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/DOGE/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no request/response examples, and no meaningful documentation beyond a wallet-connect prompt. The actual data returned by this endpoint is entirely 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'000':131 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':116 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':120 '20':130 '6':136 'DOGE DeFi data' 'DOGE liquidity' 'DeFi liquidity API' 'Dogecoin liquidity pool' 'Dogecoin pool data' 'accept':92,181 'actual':187 'address':115 'ai/ml':62 'amount':125 'analyt':61 'api':53,82,147 'avail':207 'base':8,20,78,122,132 'behavior':188 'broader':46 'call':52,128 'captur':104 'challeng':101 'commit':88 'confirm':105 'connect':156 'contract':119 'cost':71 'cover':202 'crypto':65 'crypto liquidity endpoint' 'data':3,15,32,60 'decim':137 'defi':30 'defi-liquidity-data' 'descript':174 'detail':163 'dex':198 'doc':146 'document':141 'doge':1,13,34,196 'doge-liquidity' 'dogecoin':35 'e.g':189 'endpoint':26,91,107,180,185 'equal':139 'exampl':171 'extrem':143 'field':177 'financ':64 'http':93 'infer':63 'json':98 'key':83 'limit':85 'liquid':2,14,31,179,191 'live':109 'lowpaymentfee.com':28 'made':113 'materi':208 'maximum':124 'metric':192 'micropay':6,18 'network':9,21,79 'no-api-key' 'offer':54 'openapi':167 'page':151 'part':43 'pay':50 'pay-per-cal':49 'pay-per-request' 'payment':39,111 'per':11,23,51,127 'pool':200 'post':94 'price':148 'prompt':158 'protocol':40 'provid':29,58,194 'rate':84 'readm':150 'render':153 'request':12,24,70,95 'request/response':170 'requir':89,126 'return':97,183 'schema':168 'servic':68 'settl':73 'span':59 'spars':144 'success':103 'suit':47 'technic':162 'unit':133 'unknown':204 'upfront':87 'usdc':75,118,135 'usdc-base-settlement' 'use':117 'util':67 'via':4,16,36 'wallet':157 'x402':5,17,38,100 'x402-micropayment'","prices":[{"id":"ccdd9bac-b42f-41aa-a870-3a7e97d4de1d","listingId":"0cc5860a-a966-4db9-bcde-f34be2625de4","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/DOGE/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":"2026-04-18T18:35:21.606Z"}],"sources":[{"listingId":"0cc5860a-a966-4db9-bcde-f34be2625de4","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/DOGE/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:35:21.606Z","lastSeenAt":"2026-04-22T21:30:26.897Z"}],"details":{"listingId":"0cc5860a-a966-4db9-bcde-f34be2625de4","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/DOGE/liquidity \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge confirming it is live on Base network with USDC payment","source_url":"https://lowpaymentfee.com/api/v1/defi/DOGE/liquidity"},{"claim":"Price is $0.02 per request, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/defi/DOGE/liquidity"},{"claim":"maxAmountRequired is 20000 base units (USDC 6 decimals = $0.02)","source_url":"https://lowpaymentfee.com/api/v1/defi/DOGE/liquidity"}],"useCases":["Querying real-time DOGE liquidity across DeFi protocols","Building trading bots that need DOGE liquidity depth information","Monitoring DOGE liquidity conditions for portfolio management","Integrating DOGE liquidity data into dashboards or analytics tools"],"bestFor":["Agents or bots needing on-demand DOGE liquidity data without API key management","Developers who want pay-per-call pricing with no subscription","x402-compatible clients settling micropayments in USDC on Base"],"notFor":["Users who need detailed documentation or guaranteed SLAs before integrating","High-frequency use cases where $0.02 per call adds up significantly","Users needing liquidity data for tokens other than DOGE (this specific endpoint)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:50.929Z"},"updatedAt":"2026-04-22T21:30:26.897Z"}}