{"id":"1dcf5d49-823d-47fa-8f05-5fdafb997a41","shortId":"ZfU37j","kind":"x402","title":"Pay-per-call BTC price data via x402 on Base (USDC) or Tron (USDT) for $0.01 per request.","tagline":"Pay-per-call BTC price data via x402 on Base (USDC) or Tron (USDT) for $0.01 per request.","description":"The btc-price endpoint from Erudite Intelligence LLC returns cryptocurrency price data for a given token address or symbol. It is an x402-gated POST endpoint described as \"Crypto data intelligence.\" Each call costs $0.01 (10,000 base units of USDC on Base or USDT on Tron, both 6-decimal stablecoins). The endpoint accepts a JSON body with a `token` field (a token address or symbol) and returns a JSON object with a `success` boolean and a `data` object.\n\nThe endpoint is live and returns a proper x402 v2 challenge when called without payment. It supports two payment rails: USDC on Base (eip155:8453) settled via the Coinbase CDP x402 facilitator, and Tether USDT on Tron (tron:728126428). The payment timeout is 300 seconds. The provider, Erudite Intelligence LLC, also operates the EruditePay x402 Bridge facilitator service, which supports 20 blockchains.\n\nDocumentation is sparse — the endpoint's output schema only shows a generic `{\"success\": true, \"data\": {}}` example with no detail on what fields appear inside `data`. The provider's docs URL (docs.eruditepay.com) was not reachable during crawl, and the /docs path on the bridge returns a 404. Despite the endpoint name suggesting BTC-specific pricing, the schema accepts an arbitrary token address, implying it may serve price data for multiple tokens. The exact data fields returned remain unknown.","tags":[],"capabilities":["crypto-price-data","btc-price","token-price-lookup","x402-payment","usdc-base","usdt-tron","pay-per-call"],"categories":["crypto","market-data"],"synonyms":["bitcoin price API","crypto price feed","token price lookup","BTC USD price","cryptocurrency market data","x402 price endpoint"],"warnings":["Output data structure is unknown — the example only shows an empty `data` object","Provider documentation at docs.eruditepay.com was not reachable during crawl","Despite the endpoint name 'btc-price', the schema accepts arbitrary token addresses — actual scope is unclear"],"endpointUrl":"https://bridge.eruditepay.com/v1/market/btc-price","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"1000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The endpoint is live and returns a valid x402 v2 challenge with clear pricing ($0.01/call). However, the output schema is essentially empty (generic success + empty data object), no real documentation is available, and the actual response fields are unknown. The bazaar schema provides minimal input/output 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'0.01':17,36,75 '000':77 '10':76 '20':180 '300':163 '404':227 '6':89 '728126428':158 '8453':144 'BTC USD price' 'accept':94,239 'address':56,104,243 'also':170 'appear':204 'arbitrari':241 'base':11,30,78,83,142 'bitcoin price API' 'blockchain':181 'bodi':97 'boolean':115 'bridg':175,224 'btc':5,24,41,234 'btc-price':40 'btc-specif':233 'call':4,23,73,132 'cdp':149 'challeng':130 'coinbas':148 'cost':74 'crawl':217 'crypto':69 'crypto price feed' 'crypto-price-data' 'cryptocurr':49 'cryptocurrency market data' 'data':7,26,51,70,118,196,206,249,255 'decim':90 'describ':67 'despit':228 'detail':200 'doc':210 'docs.eruditepay.com':212 'document':182 'eip155':143 'endpoint':43,66,93,121,186,230 'erudit':45,167 'eruditepay':173 'exact':254 'exampl':197 'facilit':151,176 'field':101,203,256 'gate':64 'generic':193 'given':54 'impli':244 'insid':205 'intellig':46,71,168 'json':96,110 'live':123 'llc':47,169 'may':246 'multipl':251 'name':231 'object':111,119 'oper':171 'output':188 'path':221 'pay':2,21 'pay-per-cal':1,20 'pay-per-call' 'payment':134,138,160 'per':3,18,22,37 'post':65 'price':6,25,42,50,236,248 'proper':127 'provid':166,208 'rail':139 'reachabl':215 'remain':258 'request':19,38 'return':48,108,125,225,257 'schema':189,238 'second':164 'serv':247 'servic':177 'settl':145 'show':191 'spars':184 'specif':235 'stablecoin':91 'success':114,194 'suggest':232 'support':136,179 'symbol':58,106 'tether':153 'timeout':161 'token':55,100,103,242,252 'token price lookup' 'token-price-lookup' 'tron':14,33,87,156,157 'true':195 'two':137 'unit':79 'unknown':259 'url':211 'usdc':12,31,81,140 'usdc-base' 'usdt':15,34,85,154 'usdt-tron' 'v2':129 'via':8,27,146 'without':133 'x402':9,28,63,128,150,174 'x402 price endpoint' 'x402-gated':62 'x402-payment'","prices":[{"id":"4b94bb54-a8f1-428a-97a0-037a4ae02eed","listingId":"1dcf5d49-823d-47fa-8f05-5fdafb997a41","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"1000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:36.354Z"}],"sources":[{"listingId":"1dcf5d49-823d-47fa-8f05-5fdafb997a41","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/market/btc-price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.354Z","lastSeenAt":"2026-04-22T05:32:28.428Z"}],"details":{"listingId":"1dcf5d49-823d-47fa-8f05-5fdafb997a41","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/market/btc-price \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{\"token\": \"0x0000000000000000000000000000000000000000\"}'","exampleRequest":{"token":"0x0000000000000000000000000000000000000000"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns x402 v2 challenge with price of 10000 base units USDC on Base or USDT on Tron","source_url":"https://bridge.eruditepay.com/v1/market/btc-price"},{"claim":"USDC on Base uses 6 decimals, so 10000 base units = $0.01","source_url":"https://bridge.eruditepay.com"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered","source_url":"https://bridge.eruditepay.com"},{"claim":"EruditePay Bridge supports 20 blockchains and charges 0.5% per settlement","source_url":"https://bridge.eruditepay.com"},{"claim":"Input schema accepts a token field described as 'Token address or symbol'","source_url":"https://bridge.eruditepay.com/v1/market/btc-price"}],"useCases":["Fetching current BTC or token prices in an automated trading agent","Embedding real-time crypto price checks into an AI agent workflow","Building a portfolio tracker that pays per price lookup with no subscription"],"bestFor":["Agents that need on-demand crypto price data without API key management","Low-volume or bursty price lookups where per-call pricing is cheaper than a subscription","x402-native applications already using USDC on Base or USDT on Tron"],"notFor":["High-frequency trading requiring sub-second latency and bulk pricing (per-call cost adds up)","Users who need detailed OHLCV or historical price data (output schema is unknown)","Applications that cannot pay with USDC on Base or USDT on Tron"],"kindDetails":{},"updatedAt":"2026-04-22T01:49:29.486Z"}}