{"id":"649bc401-0db6-4371-9b0d-3ff9c282800f","shortId":"bS8eLG","kind":"x402","title":"Pay-per-call token data for GMX via x402 on Base, settled in USDC at $0.02/request.","tagline":"Pay-per-call token data for GMX via x402 on Base, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides on-demand token data for GMX (the decentralized exchange governance token) through the x402 payment protocol. Each request costs $0.02, paid in USDC on the Base network — no API keys, no rate limits, and no subscriptions required. The x402 challenge is live and returns a 402 with an exact-payment scheme requiring 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) to the specified payTo address.\n\nThe provider hosts a broad catalog of pay-per-call endpoints spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services — all at the same $0.02 per request price point. The specific endpoint `/api/v1/tokens/GMX` sits in the crypto/finance category and likely returns price or market data for the GMX token, though the exact response schema is not documented. The endpoint accepts HTTP POST requests and returns application/json.\n\nDocumentation is extremely sparse: the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response fields. The x402 challenge itself is well-formed and the site's landing page confirms the pricing model, but consumers should be prepared to discover the response format empirically.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","token-data","per-call-pricing","no-api-key","crypto-market-data","json-response"],"categories":["crypto","finance","data"],"synonyms":["GMX token price","GMX market data","crypto token API","x402 crypto data","pay-per-call token info","GMX price feed","decentralized exchange token data"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","Docs, pricing, and API pages all render only 'Connect wallet' with no technical content","No SLA, rate-limit, or uptime guarantees documented","The exact data returned for the GMX token endpoint is not specified anywhere"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/GMX","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/tokens/GMX","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs pages are empty beyond a wallet-connect prompt. The endpoint's actual output must be discovered 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'/request':18,36 '0.02':17,35,62,102,141 '000':97 '20':96 '402':88 '6':107 'GMX market data' 'GMX price feed' 'GMX token price' 'accept':176 'address':113 'ai/ml':129 'analyt':128 'api':71,191 'application/json':182 'base':12,30,68,98 'base-network' 'broad':118 'call':4,22,124 'catalog':119 'categori':154 'challeng':82,223 'confirm':235 'connect':197 'consum':240 'cost':61 'crypto token API' 'crypto-market-data' 'crypto/finance':153 'data':6,24,46,127,133,161 'decentr':50 'decentralized exchange token data' 'decim':108 'demand':44 'descript':216 'detail':204 'discov':245 'doc':188 'document':173,183 'empir':249 'endpoint':38,125,148,175 'exact':92,168 'exact-pay':91 'exampl':211 'exchang':51 'extrem':185 'field':220 'finance/web3':131 'form':228 'format':248 'gmx':8,26,48,164 'govern':52 'host':116 'http':177 'infer':130 'json-response' 'key':72 'land':233 'like':156 'limit':75 'live':84 'lowpaymentfee.com':40 'market':132,160 'model':238 'network':69 'no-api-key' 'on-demand':42 'openapi':208 'page':192,234 'paid':63 'pay':2,20,122 'pay-per-cal':1,19,121 'pay-per-call token info' 'payload':213 'payment':57,93 'payto':112 'per':3,21,123,142 'per-call-pricing' 'point':145 'post':178 'prepar':243 'price':144,158,189,237 'prompt':199 'protocol':58 'provid':41,115 'rate':74 'render':194 'request':60,143,179 'request/response':212 'requir':79,95 'respons':169,219,247 'return':86,157,181 'schema':170 'scheme':94 'servic':136 'settl':13,31 'sinc':104 'sit':150 'site':231 'span':126 'spars':186 'spec':209 'specif':147 'specifi':111 'subscript':78 'technic':203 'though':166 'token':5,23,45,53,165 'token-data' 'unit':99 'usd':103 'usdc':15,33,65,101,105 'usdc-settlement' 'use':106 'util':135 'via':9,27 'wallet':198 'well':227 'well-form':226 'x402':10,28,56,81,222 'x402 crypto data' 'x402-payment'","prices":[{"id":"f161dd7d-1401-430b-a868-efe6b55c589f","listingId":"649bc401-0db6-4371-9b0d-3ff9c282800f","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/tokens/GMX","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:24.075Z"}],"sources":[{"listingId":"649bc401-0db6-4371-9b0d-3ff9c282800f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/GMX","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:24.075Z","lastSeenAt":"2026-04-23T20:01:26.337Z"}],"details":{"listingId":"649bc401-0db6-4371-9b0d-3ff9c282800f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/GMX \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge requires 20,000 base units of USDC (asset 0x8335…) on Base, equaling $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/tokens/GMX"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The provider offers endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current GMX token data (price, market info) in an automated trading or analytics pipeline","Agents that need on-demand crypto token information without managing API keys or subscriptions","Building dashboards or alerts that pull GMX data with micropayment-based access"],"bestFor":["AI agents or bots that need frictionless, keyless access to GMX token data","Developers prototyping crypto data integrations without committing to a subscription","Low-volume or sporadic consumers who prefer pay-per-call over monthly plans"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users who need comprehensive historical OHLCV data or advanced charting — response schema is unknown","Anyone needing detailed API documentation or guaranteed uptime commitments"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:47:04.93Z"},"updatedAt":"2026-04-23T20:01:26.337Z"}}