{"id":"0b72e339-9a1a-4070-98bb-9d8ee2b18f32","shortId":"pnrjCD","kind":"x402","title":"Crypto market quote for ABT token via x402 micropayment on Base, $0.02 per request.","tagline":"Crypto market quote for ABT token via x402 micropayment on Base, $0.02 per request.","description":"This endpoint provides a market quote for the ABT (Arcblock) token, accessible at `/api/v1/market/quote/ABT` on lowpaymentfee.com. It is part of a broader suite of pay-per-call APIs covering finance, AI, data analytics, and utility services, all settled via the x402 protocol on the Base network using USDC.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 `X-PAYMENT` header — no API keys, accounts, or rate limits are required. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02 USD. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a timeout of 300 seconds.\n\nDocumentation on the site is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no example request/response payloads, and no description of what fields the quote response contains. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the actual response schema and supported request parameters are unknown.","tags":[],"capabilities":["crypto-market-quote","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","json-response"],"categories":["finance","crypto"],"synonyms":["ABT token price","Arcblock quote","crypto price API","token market data","x402 crypto API","micropayment market quote","Base USDC API"],"warnings":["No documentation available — all doc/pricing/API pages show only 'Connect wallet'","No OpenAPI or output schema provided; response format is unknown","The /api/v1/market/quote/ABT path is not listed among the site's advertised endpoints, which may indicate an undocumented or experimental route","Cannot verify what data fields the quote response actually contains"],"endpointUrl":"https://lowpaymentfee.com/api/v1/market/quote/ABT","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/market/quote/ABT","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge, but documentation is essentially nonexistent — docs pages render only 'Connect wallet'. There is no OpenAPI schema, no example request/response, and no description of the quote payload fields. The specific endpoint path (/market/quote/ABT) is not even listed on the homepage's API catalog, raising questions about 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'0.02':12,26,123 '000':114 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':131 '20':113 '300':138 '402':192 '6':119 'ABT token price' 'Arcblock quote' 'Base USDC API' 'abt':5,19,37 'accept':80 'access':40 'account':100 'actual':197 'address':130 'ai':60 'amount':108 'analyt':62 'api':57,98,149 'arcblock':38 'base':11,25,74,115,133 'base-network' 'broader':50 'call':56,111 'challeng':194 'confirm':187 'connect':158 'contain':183 'content':164 'cover':58 'crypto':1,15 'crypto price API' 'crypto-market-quote' 'data':61 'decim':120 'descript':176 'doc':148 'document':140 'endpoint':30,79,185 'equal':122 'exampl':171 'extrem':145 'field':179 'financ':59 'handl':88 'header':96 'inlin':89 'json':85 'json-response' 'key':99 'limit':103 'live':188 'lowpaymentfee.com':44 'market':2,16,33 'maximum':107 'micropay':9,23 'micropayment market quote' 'network':75 'no-api-key' 'openapi':168 'page':153 'paramet':203 'part':47 'pay':54 'pay-per-cal':53 'pay-per-request' 'payload':173 'payment':86,95,126 'per':13,27,55,110 'post':81 'price':150 'prompt':160 'proper':191 'protocol':71 'provid':31 'quot':3,17,34,181 'rate':102 'readm':152 'render':155 'request':14,28,82,202 'request/response':172 'requir':105,109 'respons':182,198 'return':84,189 'schema':169,199 'second':139 'sent':128 'servic':65 'settl':67 'site':143 'spars':146 'suit':51 'support':201 'timeout':136 'token':6,20,39 'token market data' 'unit':116 'unknown':205 'usd':124 'usdc':77,118 'usdc-settlement' 'use':76 'util':64 'via':7,21,68,90 'wallet':159 'x':94 'x-payment':93 'x402':8,22,70,92,193 'x402 crypto API' 'x402-payment'","prices":[{"id":"f901df90-e15b-426f-9069-7b753478bb41","listingId":"0b72e339-9a1a-4070-98bb-9d8ee2b18f32","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/market/quote/ABT","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:35:16.229Z"}],"sources":[{"listingId":"0b72e339-9a1a-4070-98bb-9d8ee2b18f32","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/market/quote/ABT","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:35:16.229Z","lastSeenAt":"2026-04-24T11:31:38.806Z"}],"details":{"listingId":"0b72e339-9a1a-4070-98bb-9d8ee2b18f32","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/market/quote/ABT \\\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 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/market/quote/ABT"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/market/quote/ABT"},{"claim":"Site advertises $0.02 per request, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching a real-time market quote for the ABT (Arcblock) token","Integrating pay-per-call crypto price data into trading bots or dashboards","Agent-driven market data retrieval without API key management"],"bestFor":["Developers needing quick, keyless access to ABT token quotes","AI agents that can settle x402 payments on Base","Projects already using USDC on Base for micropayments"],"notFor":["Users needing bulk historical market data (no evidence of batch or historical endpoints)","Anyone without a Base-compatible USDC wallet for x402 settlement","Production use cases requiring documented response schemas and SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:51.182Z"},"updatedAt":"2026-04-24T11:31:38.806Z"}}