{"id":"b6711fba-6091-425a-ac30-189ac41c915a","shortId":"EBbuKq","kind":"x402","title":"Get the current price of IMX token via a pay-per-call x402 endpoint on Base.","tagline":"Get the current price of IMX token via a pay-per-call x402 endpoint on Base.","description":"This endpoint returns the current price of the IMX (Immutable X) token. It is part of a broader suite of APIs hosted at lowpaymentfee.com that cover data analytics, AI/ML inference, finance, crypto, and utility services — all payable per request via the x402 protocol on the Base network using USDC.\n\nThe specific endpoint `/api/v1/tokens/IMX/price` accepts POST requests and returns JSON. Each call costs $0.02 (20,000 base units of USDC on Base, which has 6 decimals). Payment is handled inline via the x402 `X-PAYMENT` header — no API keys, accounts, or rate limits are required. The x402 challenge confirms the endpoint is live, accepting payments to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a maximum timeout of 300 seconds.\n\nDocumentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema. The endpoint appears to be part of a pattern (`/api/v1/tokens/{symbol}/price`) but this is inferred, not documented.","tags":[],"capabilities":["token-price-lookup","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","json-response"],"categories":["finance","crypto"],"synonyms":["IMX price","Immutable X price","token price API","crypto price feed","x402 crypto API","pay-per-call price endpoint","USDC micropayment API"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All documentation pages (/docs, /api, /pricing, /README) return only a 'Connect wallet' prompt with no content","No example request or response payloads are available anywhere in the crawl","The broader lowpaymentfee.com platform lists many endpoints but provides no technical detail for any of them","The specific /api/v1/tokens/IMX/price path is not listed on the landing page; it may be an undocumented or dynamically-routed endpoint"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/IMX/price","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/IMX/price","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 confirms pricing and payment details, but there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs pages are empty stubs. The endpoint's actual behavior must be entirely inferred from its URL pattern and the landing page 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'/api/v1/tokens':202 '/api/v1/tokens/imx/price':87 '/docs':159 '/price':204 '/pricing':161 '/readme':163 '0.02':97 '000':99 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':142 '20':98 '300':148 '6':108 'IMX price' 'Immutable X price' 'USDC micropayment API' 'accept':88,138 'account':124 'addit':174 'address':141 'ai/ml':63 'analyt':62 'api':55,122 'appear':195 'base':17,34,80,100,105 'base-network' 'beyond':151 'broader':52 'call':13,30,95 'challeng':132 'confirm':133 'connect':169 'cost':96 'cover':60 'crypto':66 'crypto price feed' 'current':3,20,39 'data':61 'decim':109 'descript':188 'detail':176 'document':150,210 'endpoint':15,32,36,86,135,194 'exampl':183 'extrem':156 'financ':65 'get':1,18 'handl':112 'header':120 'host':56 'immut':44 'imx':6,23,43 'infer':64,208 'inlin':113 'json':93 'json-response' 'key':123 'land':153 'limit':127 'live':137 'lowpaymentfee.com':58 'maximum':145 'network':81 'no-api-key' 'openapi':180 'page':154,164 'part':49,198 'pattern':201 'pay':11,28 'pay-per-cal':10,27 'pay-per-call price endpoint' 'pay-per-request' 'payabl':71 'payload':185 'payment':110,119,139 'per':12,29,72 'post':89 'price':4,21,40 'prompt':171 'protocol':77 'rate':126 'render':166 'request':73,90 'request/response':184 'requir':129 'respons':191 'return':37,92 'schema':192 'second':149 'servic':69 'spars':157 'spec':181 'specif':85 'suit':53 'symbol':203 'technic':175 'timeout':146 'token':7,24,46 'token price API' 'token-price-lookup' 'unit':101 'usdc':83,103 'usdc-settlement' 'use':82 'util':68 'via':8,25,74,114 'wallet':170 'x':45,118 'x-payment':117 'x402':14,31,76,116,131 'x402 crypto API' 'x402-payment'","prices":[{"id":"8e668def-621d-4295-896e-645e16b4b82f","listingId":"b6711fba-6091-425a-ac30-189ac41c915a","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/IMX/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:39:02.867Z"}],"sources":[{"listingId":"b6711fba-6091-425a-ac30-189ac41c915a","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/IMX/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:02.867Z","lastSeenAt":"2026-04-24T04:03:17.474Z"}],"details":{"listingId":"b6711fba-6091-425a-ac30-189ac41c915a","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/IMX/price \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/tokens/IMX/price"},{"claim":"The cost per request is $0.02 (20000 base units of USDC with 6 decimals)","source_url":"https://lowpaymentfee.com"},{"claim":"The platform advertises no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with maxTimeoutSeconds of 300","source_url":"https://lowpaymentfee.com/api/v1/tokens/IMX/price"}],"useCases":["Fetching the current IMX token price for portfolio tracking or trading bots","Integrating real-time token pricing into a DeFi application without managing API keys","Agent-driven price lookups where per-call payment is preferred over subscriptions"],"bestFor":["Developers needing quick, keyless access to IMX token pricing","AI agents that can settle x402 payments autonomously on Base","Applications requiring low-friction, pay-as-you-go crypto price data"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Bulk historical price data retrieval (endpoint appears to return current price only)","Users who cannot transact USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:40.032Z"},"updatedAt":"2026-04-24T04:03:17.474Z"}}