{"id":"643ac532-be9b-4095-b2c3-6b7ff4099295","shortId":"sFLxPN","kind":"x402","title":"Crypto token gainers and losers data via x402 micropayment on Base (USDC) or Tron (USDT).","tagline":"Crypto token gainers and losers data via x402 micropayment on Base (USDC) or Tron (USDT).","description":"The `/v1/token/gainers-losers` endpoint on EruditePay's x402 Bridge provides crypto data intelligence — specifically, information about top gaining and losing tokens. It accepts a POST request with a JSON body containing a token address or symbol, and returns structured JSON data about token performance.\n\nThe endpoint is live and uses the x402 v2 payment protocol. It accepts payment via two networks: USDC on Base (eip155:8453) at $0.01 per call, or USDT on Tron at $0.01 per call. The facilitator for Base payments is Coinbase CDP. The service is operated by Erudite Intelligence LLC, a FinCEN MSB-registered entity (BSA ID 31000324258137).\n\nDocumentation is sparse — the endpoint description is simply \"Crypto data intelligence\" and the example output is a generic `{\"success\": true, \"data\": {}}` stub. The input schema accepts a `token` field (string: token address or symbol), but it is unclear what the full response shape looks like or what specific data fields are returned. There is no dedicated docs page for this endpoint; the main site documents only the Bridge facilitator endpoints (/verify, /settle, etc.), not the data intelligence endpoints.","tags":[],"capabilities":["crypto-token-data","gainers-losers","x402-payment","base-usdc","tron-usdt","json-api"],"categories":["crypto","market-data"],"synonyms":["token gainers","token losers","crypto movers","top gainers losers","token performance","crypto market data","token price changes"],"warnings":["No dedicated documentation exists for this endpoint; /docs returns 404","The example output is a generic stub ({\"success\": true, \"data\": {}}) — actual response structure is unknown","It is unclear what 'gainers-losers' data includes (timeframe, chains covered, number of tokens, fields returned)","The token field description says 'Token address or symbol' but behavior with symbols vs addresses is undocumented"],"endpointUrl":"https://bridge.eruditepay.com/v1/token/gainers-losers","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":"0.400","qualityRationale":"The endpoint is live (402 challenge captured) with clear pricing ($0.01/call) and a basic input schema, but documentation is extremely thin — no dedicated docs page, no real response example, and the output example is a generic stub. The endpoint's actual data shape and coverage are 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'/v1/token/gainers-losers':32 '/verify':203 '0.01':97,105 '31000324258137':132 '8453':95 'accept':52,86,158 'address':63,164 'base':11,26,93,111 'base-usdc' 'bodi':59 'bridg':38,200 'bsa':130 'call':99,107 'cdp':115 'coinbas':114 'contain':60 'crypto':1,16,40,141 'crypto market data' 'crypto movers' 'crypto-token-data' 'data':6,21,41,70,142,153,181,208 'dedic':188 'descript':138 'doc':189 'document':133,197 'eip155':94 'endpoint':33,75,137,193,202,210 'entiti':129 'erudit':121 'eruditepay':35 'etc':205 'exampl':146 'facilit':109,201 'field':161,182 'fincen':125 'full':173 'gain':47 'gainer':3,18 'gainers-losers' 'generic':150 'id':131 'inform':44 'input':156 'intellig':42,122,143,209 'json':58,69 'json-api' 'like':177 'live':77 'llc':123 'look':176 'lose':49 'loser':5,20 'main':195 'micropay':9,24 'msb':127 'msb-regist':126 'network':90 'oper':119 'output':147 'page':190 'payment':83,87,112 'per':98,106 'perform':73 'post':54 'protocol':84 'provid':39 'regist':128 'request':55 'respons':174 'return':67,184 'schema':157 'servic':117 'shape':175 'simpli':140 'site':196 'spars':135 'specif':43,180 'string':162 'structur':68 'stub':154 'success':151 'symbol':65,166 'token':2,17,50,62,72,160,163 'token gainers' 'token losers' 'token performance' 'token price changes' 'top':46 'top gainers losers' 'tron':14,29,103 'tron-usdt' 'true':152 'two':89 'unclear':170 'usdc':12,27,91 'usdt':15,30,101 'use':79 'v2':82 'via':7,22,88 'x402':8,23,37,81 'x402-payment'","prices":[{"id":"e9ee84b6-db7a-49bd-8d97-ef3a5357cc4d","listingId":"643ac532-be9b-4095-b2c3-6b7ff4099295","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":"2026-04-21T18:32:35.758Z"}],"sources":[{"listingId":"643ac532-be9b-4095-b2c3-6b7ff4099295","source":"x402_bazaar","sourceId":"https://bridge.eruditepay.com/v1/token/gainers-losers","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:35.758Z","lastSeenAt":"2026-04-22T05:32:27.746Z"}],"details":{"listingId":"643ac532-be9b-4095-b2c3-6b7ff4099295","quickStartSnippet":"curl -X POST https://bridge.eruditepay.com/v1/token/gainers-losers \\\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 USDC on Base at amount 10000 and USDT on Tron at amount 10000","source_url":"https://bridge.eruditepay.com/v1/token/gainers-losers"},{"claim":"USDC and USDT use 6 decimals, so amount 10000 = $0.01","source_url":"https://bridge.eruditepay.com"},{"claim":"Operated by Erudite Intelligence LLC, FinCEN MSB registered, BSA ID 31000324258137","source_url":"https://bridge.eruditepay.com"},{"claim":"Base payment facilitator is Coinbase CDP","source_url":"https://bridge.eruditepay.com/v1/token/gainers-losers"},{"claim":"Input schema accepts a token field (string: token address or symbol)","source_url":"https://bridge.eruditepay.com/v1/token/gainers-losers"}],"useCases":["Retrieve top gaining and losing crypto tokens for portfolio dashboards","Feed token performance data into trading bots or alert systems","Enrich crypto analytics pipelines with real-time mover data","Query specific token gain/loss status by address or symbol"],"bestFor":["Agents needing on-demand crypto market mover data","Applications tracking token price momentum","Developers building crypto dashboards with pay-per-call pricing"],"notFor":["Historical time-series token price data (no evidence of historical support)","Non-crypto market data (stocks, forex, commodities)","Users who need detailed API documentation before integrating"],"kindDetails":{},"updatedAt":"2026-04-22T01:36:25.961Z"}}