{"id":"cd16d06f-e3d2-4058-ae11-f00568e91fcd","shortId":"kcHSE9","kind":"x402","title":"Upcoming crypto token listing data via x402-paid POST endpoint","tagline":"Upcoming crypto token listing data via x402-paid POST endpoint","description":"This x402-protected endpoint at bridge.eruditepay.com provides upcoming cryptocurrency token listing intelligence. Callers send a POST request with a JSON body containing a token address or symbol, and receive structured data about upcoming listings for that token. The endpoint is described as \"Crypto data intelligence\" in its x402 challenge.\n\nPayment is accepted via two options: USDC on Base (eip155:8453) at 0.01 USDC per call, or USDT on Tron (tron:728126428) at 0.01 USDT per call. The x402 v2 challenge is live and served by the EruditePay Bridge facilitator (operated by Erudite Intelligence LLC, a FinCEN-registered MSB). Settlement is handled through Coinbase CDP on Base and natively on Tron.\n\nDocumentation is sparse — the provider's docs endpoint returns a 404, and the only schema information comes from the x402 challenge's bazaar extension. The input accepts a `token` field (token address or symbol), and the example output shows `{\"success\": true, \"data\": {}}` with no further detail on what fields `data` contains. The actual content and depth of the listing intelligence returned is unknown from available materials.","tags":[],"capabilities":["upcoming-token-listings","crypto-market-data","x402-payment","multi-chain-payment","post-json-api"],"categories":["crypto","market-data"],"synonyms":["upcoming crypto listings","token listing schedule","new token listings","exchange listing data","crypto listing intelligence","token launch calendar"],"warnings":["Documentation endpoint (/docs) returns 404 — no detailed API docs available","Output schema is effectively unknown; the example response contains an empty data object","No information on what 'upcoming listings' data fields are returned","Provider description says 'Crypto data intelligence' but specifics are not documented"],"endpointUrl":"https://bridge.eruditepay.com/v1/market/upcoming-listings","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6961b88476a9b89C4ed97A4aF4D190754d5e70A1","amount":"3000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The x402 challenge is live and provides a basic bazaar schema with input/output examples, but documentation is missing (docs endpoint returns 404), the output data structure is entirely opaque (empty object in example), and there is no OpenAPI spec. The actual value of the response cannot be verified from available 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'404':145 '728126428':94 '8453':83 'accept':75,161 'actual':187 'address':48,166 'avail':199 'base':81,130 'bazaar':157 'bodi':44 'bridg':111 'bridge.eruditepay.com':29 'call':88,99 'caller':36 'cdp':128 'challeng':72,103,155 'coinbas':127 'come':151 'contain':45,185 'content':188 'crypto':2,13,66 'crypto listing intelligence' 'crypto-market-data' 'cryptocurr':32 'data':5,16,54,67,176,184 'depth':190 'describ':64 'detail':180 'doc':141 'document':135 'eip155':82 'endpoint':11,22,27,62,142 'erudit':115 'eruditepay':110 'exampl':171 'exchange listing data' 'extens':158 'facilit':112 'field':164,183 'fincen':120 'fincen-regist':119 'handl':125 'inform':150 'input':160 'intellig':35,68,116,194 'json':43 'list':4,15,34,57,193 'live':105 'llc':117 'materi':200 'msb':122 'multi-chain-payment' 'nativ':132 'new token listings' 'oper':113 'option':78 'output':172 'paid':9,20 'payment':73 'per':87,98 'post':10,21,39 'post-json-api' 'protect':26 'provid':30,139 'receiv':52 'regist':121 'request':40 'return':143,195 'schema':149 'send':37 'serv':107 'settlement':123 'show':173 'spars':137 'structur':53 'success':174 'symbol':50,168 'token':3,14,33,47,60,163,165 'token launch calendar' 'token listing schedule' 'tron':92,93,134 'true':175 'two':77 'unknown':197 'upcom':1,12,31,56 'upcoming crypto listings' 'upcoming-token-listings' 'usdc':79,86 'usdt':90,97 'v2':102 'via':6,17,76 'x402':8,19,25,71,101,154 'x402-paid':7,18 'x402-payment' 'x402-protected':24","prices":[{"id":"356d3552-f090-42c2-bf09-c045fdbae8aa","listingId":"cd16d06f-e3d2-4058-ae11-f00568e91fcd","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":"3000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:36.156Z"}],"sources":[{"listingId":"cd16d06f-e3d2-4058-ae11-f00568e91fcd","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/market/upcoming-listings","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:36.156Z","lastSeenAt":"2026-04-22T05:32:28.197Z"}],"details":{"listingId":"cd16d06f-e3d2-4058-ae11-f00568e91fcd","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/market/upcoming-listings \\\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'","source_url":"https://bridge.eruditepay.com/v1/market/upcoming-listings"},{"claim":"Accepts USDC on Base at 10000 base units (0.01 USDC) and USDT on Tron at 10000 base units (0.01 USDT)","source_url":"https://bridge.eruditepay.com/v1/market/upcoming-listings"},{"claim":"Operated by Erudite Intelligence LLC, FinCEN MSB registered, BSA ID 31000324258137","source_url":"https://bridge.eruditepay.com"},{"claim":"EruditePay Bridge is an x402 facilitator supporting 20 blockchains","source_url":"https://bridge.eruditepay.com"}],"useCases":["Querying upcoming exchange listings for a specific token address","Monitoring new token listing events for trading strategies","Enriching crypto portfolio dashboards with upcoming listing data"],"bestFor":["Crypto trading bots needing upcoming listing signals","Market data aggregators tracking new token launches","Agents that can pay per-call via x402 with USDC or USDT"],"notFor":["Historical market data or price feeds","Non-crypto use cases","Users who cannot settle payments in USDC on Base or USDT on Tron"],"kindDetails":{},"updatedAt":"2026-04-22T01:53:42.582Z"}}