{"id":"a3c83862-394b-477a-b3e4-978ce87463b0","shortId":"yhRT4W","kind":"x402","title":"Retrieve historical token price data on Base via x402 micropayment","tagline":"Retrieve historical token price data on Base via x402 micropayment","description":"This x402-enabled endpoint returns historical price data for tokens on the Base blockchain. Callers POST a JSON body containing a token address (or symbol) and receive price history in response. The endpoint is operated by Erudite Intelligence LLC and described as \"Crypto data intelligence.\"\n\nPayment is required per-call via the x402 protocol (version 2). Two payment options are accepted: USDC on Base (network eip155:8453) at $0.01 per request, or USDT on Tron (network tron:728126428) at $0.01 per request. Settlement is facilitated through the EruditePay Bridge, which supports the Coinbase CDP facilitator for the Base payment path. The endpoint accepts POST requests with a JSON body containing a `token` field (a token contract address or symbol).\n\nDocumentation is sparse — the example output schema shows only `{\"success\": true, \"data\": {}}` with no detail on the structure of the returned price history (e.g., time granularity, fields, date range). There is no OpenAPI spec, and the docs URL returns a 404. The endpoint is confirmed live via a 402 challenge response.","tags":[],"capabilities":["token-price-history","base-chain","x402-payment","usdc-payment","usdt-tron-payment","crypto-data","post-json"],"categories":["crypto","market-data"],"synonyms":["token price history","crypto price data","Base token prices","ERC-20 price history","on-chain price data","historical crypto prices","token market data"],"warnings":["No OpenAPI or detailed API documentation available — /docs returns 404","Output example is a stub: {\"success\": true, \"data\": {}} with no detail on price history fields, granularity, or date range","The token field description says 'Token address or symbol' but it is unclear which symbols are supported or whether this works only for Base-deployed tokens","No rate limit or usage quota information provided"],"endpointUrl":"https://bridge.eruditepay.com/v1/base/token/price-history","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 confirmed live via a valid x402 402 challenge with clear pricing and payment options. However, documentation is effectively absent (docs URL returns 404), the output schema example is a stub with an empty data object, and there is no OpenAPI spec. The actual shape of the price history response must be discovered 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'2':78 '402':190 '404':182 '728126428':100 '8453':89 'Base token prices' 'ERC-20 price history' 'accept':83,125 'address':44,139 'base':7,17,34,86,120 'base-chain' 'blockchain':35 'bodi':40,131 'bridg':111 'call':72 'caller':36 'cdp':116 'challeng':191 'coinbas':115 'confirm':186 'contain':41,132 'contract':138 'crypto':64 'crypto price data' 'crypto-data' 'data':5,15,29,65,153 'date':169 'describ':62 'detail':156 'doc':178 'document':142 'e.g':165 'eip155':88 'enabl':24 'endpoint':25,54,124,184 'erudit':58 'eruditepay':110 'exampl':146 'facilit':107,117 'field':135,168 'granular':167 'histor':2,12,27 'histori':50,164 'historical crypto prices' 'intellig':59,66 'json':39,130 'live':187 'llc':60 'micropay':10,20 'network':87,98 'on-chain price data' 'openapi':174 'oper':56 'option':81 'output':147 'path':122 'payment':67,80,121 'per':71,92,103 'per-cal':70 'post':37,126 'post-json' 'price':4,14,28,49,163 'protocol':76 'rang':170 'receiv':48 'request':93,104,127 'requir':69 'respons':52,192 'retriev':1,11 'return':26,162,180 'schema':148 'settlement':105 'show':149 'spars':144 'spec':175 'structur':159 'success':151 'support':113 'symbol':46,141 'time':166 'token':3,13,31,43,134,137 'token market data' 'token price history' 'token-price-history' 'tron':97,99 'true':152 'two':79 'url':179 'usdc':84 'usdc-payment' 'usdt':95 'usdt-tron-payment' 'version':77 'via':8,18,73,188 'x402':9,19,23,75 'x402-enabled':22 'x402-payment'","prices":[{"id":"c1af1e05-b7cd-484e-9ad6-c25ab1482775","listingId":"a3c83862-394b-477a-b3e4-978ce87463b0","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":"2026-04-21T18:32:36.558Z"}],"sources":[{"listingId":"a3c83862-394b-477a-b3e4-978ce87463b0","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/base/token/price-history","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.558Z","lastSeenAt":"2026-04-22T05:32:28.666Z"}],"details":{"listingId":"a3c83862-394b-477a-b3e4-978ce87463b0","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/base/token/price-history \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -d '{\"token\": \"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}'","exampleRequest":{"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"exampleResponse":{"data":{},"success":true},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns x402 v2 challenge with USDC on Base (amount 10000 = $0.01) and USDT on Tron (amount 10000 = $0.01)","source_url":"https://bridge.eruditepay.com/v1/base/token/price-history"},{"claim":"Operated by Erudite Intelligence LLC, FinCEN MSB registered (BSA ID 31000324258137)","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":"Endpoint description is 'Crypto data intelligence'","source_url":"https://bridge.eruditepay.com/v1/base/token/price-history"}],"useCases":["Fetching historical price charts for tokens deployed on Base","Building portfolio tracking tools that need token price timelines","Backtesting trading strategies with historical token price data","Powering dashboards that display token price trends"],"bestFor":["Agents or apps needing on-demand token price history on Base","Developers building crypto analytics tools","Micropayment-friendly price data queries at $0.01 per call"],"notFor":["Real-time streaming price feeds (this is a request/response endpoint)","Non-crypto or traditional equity/forex price data","Users who need detailed documentation before integrating — docs are currently sparse"],"kindDetails":{},"updatedAt":"2026-04-22T01:54:55.962Z"}}