{"id":"7eee4d18-18da-4d34-90b9-b601c9555ea7","shortId":"6uAKQC","kind":"x402","title":"Pay-per-call ETH and token price data via x402 on Base (USDC) or Tron (USDT).","tagline":"Pay-per-call ETH and token price data via x402 on Base (USDC) or Tron (USDT).","description":"The `/v1/market/eth-price` endpoint on EruditePay's Bridge provides crypto price intelligence behind an x402 paywall. Callers POST a JSON body containing a `token` field (a token address or symbol) and receive price data in return. The endpoint is described by the provider as \"Crypto data intelligence\" and accepts payment via two rails: USDC on Base (eip155:8453) or USDT on Tron, both at 10,000 base units per call — equivalent to $0.01 USD per request (6-decimal stablecoins).\n\nThe x402 v2 challenge was successfully captured, confirming the endpoint is live. The payment facilitator is Coinbase CDP for the Base rail. The provider, Erudite Intelligence LLC, operates the EruditePay Bridge, a multi-chain x402 facilitator registered as a FinCEN MSB (BSA ID 31000324258137). The Bridge itself supports 20 blockchains for payment verification and settlement.\n\nDocumentation is sparse for this specific market-data endpoint. The Bazaar schema embedded in the x402 challenge specifies a POST with a JSON body containing a `token` string (address or symbol), and the example output is `{\"success\": true, \"data\": {}}` — the actual shape of the `data` object is not documented. No OpenAPI spec or dedicated docs page was found. Callers should expect a JSON response but will need to experiment to understand the full response structure.","tags":[],"capabilities":["crypto-price-data","x402-paywall","usdc-base","usdt-tron","token-lookup","pay-per-call","json-api"],"categories":["crypto","market-data"],"synonyms":["ETH price API","token price lookup","crypto market data","x402 price feed","on-chain price oracle","cryptocurrency pricing","EruditePay market"],"warnings":["No OpenAPI or dedicated documentation found for this endpoint; /docs returns 404.","The example output schema shows an empty `data` object — the real response structure is unknown.","Only two payment rails available (Base USDC, Tron USDT); no fiat option."],"endpointUrl":"https://bridge.eruditepay.com/v1/market/eth-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 x402 challenge is live and well-formed, confirming the endpoint works and pricing is clear ($0.01/call). However, there is no OpenAPI spec, no dedicated documentation, and the response schema is essentially a stub (empty `data` object). The actual content of the price response must be inferred or discovered 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'0.01':106 '000':99 '10':98 '20':162 '31000324258137':157 '6':110 '8453':91 'ETH price API' 'EruditePay market' 'accept':82 'actual':210 'address':61,198 'base':13,30,89,100,133 'bazaar':180 'behind':46 'blockchain':163 'bodi':54,193 'bridg':41,143,159 'bsa':155 'call':4,21,103 'caller':50,228 'captur':119 'cdp':130 'chain':147 'challeng':116,186 'coinbas':129 'confirm':120 'contain':55,194 'crypto':43,78 'crypto market data' 'crypto-price-data' 'cryptocurrency pricing' 'data':9,26,67,79,177,208,214 'decim':111 'dedic':223 'describ':73 'doc':224 'document':169,218 'eip155':90 'embed':182 'endpoint':37,71,122,178 'equival':104 'erudit':137 'eruditepay':39,142 'eth':5,22 'exampl':203 'expect':230 'experi':238 'facilit':127,149 'field':58 'fincen':153 'found':227 'full':242 'id':156 'intellig':45,80,138 'json':53,192,232 'json-api' 'live':124 'llc':139 'market':176 'market-data':175 'msb':154 'multi':146 'multi-chain':145 'need':236 'object':215 'on-chain price oracle' 'openapi':220 'oper':140 'output':204 'page':225 'pay':2,19 'pay-per-cal':1,18 'pay-per-call' 'payment':83,126,165 'paywal':49 'per':3,20,102,108 'post':51,189 'price':8,25,44,66 'provid':42,76,136 'rail':86,134 'receiv':65 'regist':150 'request':109 'respons':233,243 'return':69 'schema':181 'settlement':168 'shape':211 'spars':171 'spec':221 'specif':174 'specifi':187 'stablecoin':112 'string':197 'structur':244 'success':118,206 'support':161 'symbol':63,200 'token':7,24,57,60,196 'token price lookup' 'token-lookup' 'tron':16,33,95 'true':207 'two':85 'understand':240 'unit':101 'usd':107 'usdc':14,31,87 'usdc-base' 'usdt':17,34,93 'usdt-tron' 'v2':115 'verif':166 'via':10,27,84 'x402':11,28,48,114,148,185 'x402 price feed' 'x402-paywall'","prices":[{"id":"616dfa68-77b6-4024-9e4f-8cadf5a73e6b","listingId":"7eee4d18-18da-4d34-90b9-b601c9555ea7","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":"2026-04-21T18:32:36.464Z"}],"sources":[{"listingId":"7eee4d18-18da-4d34-90b9-b601c9555ea7","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/market/eth-price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.464Z","lastSeenAt":"2026-04-22T05:32:28.551Z"}],"details":{"listingId":"7eee4d18-18da-4d34-90b9-b601c9555ea7","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/market/eth-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 description 'Crypto data intelligence' and accepts USDC on Base and USDT on Tron at 10,000 base units per call.","source_url":"https://bridge.eruditepay.com/v1/market/eth-price"},{"claim":"Provider is Erudite Intelligence LLC, FinCEN MSB registered with BSA ID 31000324258137.","source_url":"https://bridge.eruditepay.com"},{"claim":"USDC on Base uses asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 with 6 decimals, making 10000 base units equal to $0.01.","source_url":"https://bridge.eruditepay.com/v1/market/eth-price"},{"claim":"Coinbase CDP is listed as the facilitator for the Base payment rail.","source_url":"https://bridge.eruditepay.com/v1/market/eth-price"}],"useCases":["Fetching real-time ETH or token prices in an automated trading agent","Enriching wallet dashboards with current token valuations","Building price-aware smart contract triggers via off-chain data","Integrating crypto price checks into payment or invoicing workflows"],"bestFor":["Agents that need pay-per-call crypto price data without API key management","x402-native workflows already settling on Base or Tron","Low-volume or sporadic price lookups at $0.01 per call"],"notFor":["High-frequency trading requiring sub-second latency and bulk pricing tiers","Users who need comprehensive historical OHLCV candle data","Non-crypto use cases with no stablecoin payment capability"],"kindDetails":{},"updatedAt":"2026-04-22T01:49:42.151Z"}}