{"id":"83bed85f-4f62-4211-aa2c-1d7ac5e4dc89","shortId":"HQ4hjC","kind":"x402","title":"Pay-per-call ICP token data via x402 on Base, settled in USDC at $0.02/request.","tagline":"Pay-per-call ICP token data via x402 on Base, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides token data for ICP (Internet Computer Protocol) via a simple POST request, gated by the x402 payment protocol. Each call costs $0.02, paid in USDC on the Base network. No API keys, accounts, or rate limits are required — callers simply attach an x402 payment header to access the resource.\n\nThe endpoint is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services, all priced uniformly at $0.02 per request. The specific `/api/v1/tokens/ICP` path falls under the Finance & Web3 category and likely returns token-level data (price, metadata, or market information) for the ICP token, though the exact response schema is not documented.\n\nPayment is settled on-chain via the x402 \"exact\" scheme to a specified wallet address, using USDC (contract 0x8335…2913 on Base). The maximum payment timeout is 300 seconds. No OpenAPI spec, detailed documentation, or example responses were found in the crawl — the docs, pricing, and API pages all rendered only a wallet-connect prompt with no additional content.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","token-data","pay-per-call","no-api-key","icp-token"],"categories":["finance","crypto"],"synonyms":["ICP token price","Internet Computer data","crypto token API","ICP market data","x402 crypto API","pay-per-request token data","lowpaymentfee"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","Docs, pricing, and API pages render only a wallet-connect prompt with no useful content","The exact data returned for ICP tokens is not documented anywhere in the crawl","Platform appears to be a generic x402 demo or early-stage project with many listed endpoints but no substantive documentation"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/ICP","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/tokens/ICP","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 in USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs/pricing/API pages are all empty beyond a wallet-connect prompt. The actual data returned by this endpoint is entirely 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'/request':17,34 '0.02':16,33,61,120 '0x8335':176 '2913':177 '300':185 'ICP market data' 'ICP token price' 'Internet Computer data' 'access':86 'account':72 'addit':216 'address':172 'ai/ml':108 'analyt':107 'api':70,104,204 'attach':80 'base':11,28,67,179 'base-network' 'broader':95 'call':4,21,59,103 'caller':78 'categori':132 'chain':162 'comput':45 'connect':212 'content':217 'contract':175 'cost':60 'crawl':199 'crypto token API' 'data':7,24,41,106,112,139 'detail':190 'doc':201 'document':156,191 'dozen':98 'endpoint':36,90 'exact':151,166 'exampl':193 'fall':127 'financ':130 'finance/web3':110 'found':196 'gate':52 'header':84 'icp':5,22,43,147 'icp-token' 'infer':109 'inform':144 'internet':44 'key':71 'level':138 'like':134 'limit':75 'lowpaymentfee' 'lowpaymentfee.com':38 'market':111,143 'maximum':181 'metadata':141 'network':68 'no-api-key' 'offer':97 'on-chain':160 'openapi':188 'page':205 'paid':62 'part':92 'path':126 'pay':2,19,101 'pay-per-cal':1,18,100 'pay-per-call' 'pay-per-request token data' 'payment':56,83,157,182 'per':3,20,102,121 'platform':96 'post':50 'price':117,140,202 'prompt':213 'protocol':46,57 'provid':39 'rate':74 'render':207 'request':51,122 'requir':77 'resourc':88 'respons':152,194 'return':135 'schema':153 'scheme':167 'second':186 'servic':115 'settl':12,29,159 'simpl':49 'simpli':79 'span':105 'spec':189 'specif':124 'specifi':170 'though':149 'timeout':183 'token':6,23,40,137,148 'token-data' 'token-level':136 'uniform':118 'usdc':14,31,64,174 'usdc-settlement' 'use':173 'util':114 'via':8,25,47,163 'wallet':171,211 'wallet-connect':210 'web3':131 'x402':9,26,55,82,165 'x402 crypto API' 'x402-payment'","prices":[{"id":"4aa75d53-c875-47f6-8f97-c9b33108c562","listingId":"83bed85f-4f62-4211-aa2c-1d7ac5e4dc89","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/tokens/ICP","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:39:02.201Z"}],"sources":[{"listingId":"83bed85f-4f62-4211-aa2c-1d7ac5e4dc89","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/ICP","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:02.201Z","lastSeenAt":"2026-04-24T04:31:52.393Z"}],"details":{"listingId":"83bed85f-4f62-4211-aa2c-1d7ac5e4dc89","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/ICP \\\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":"Endpoint returns 402 with x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/tokens/ICP"},{"claim":"Price is $0.02 per request, no API keys, no rate limits","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/ICP"},{"claim":"Platform lists APIs across data analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current ICP token data (price, metadata) without needing an API key","Integrating ICP market information into trading bots or dashboards","Agent-driven on-demand crypto token lookups with micropayments"],"bestFor":["Developers needing quick, keyless access to ICP token data","AI agents that can settle x402 payments on Base","Low-volume or sporadic token data lookups where $0.02/call is acceptable"],"notFor":["High-frequency trading requiring sub-second latency and bulk pricing","Users who need comprehensive historical ICP data or OHLCV candles (no evidence of such features)","Anyone unable to settle USDC payments on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:40.046Z"},"updatedAt":"2026-04-24T04:31:52.393Z"}}