{"id":"2eda8a12-6102-4e3a-96ee-e63492595519","shortId":"GfAbQe","kind":"x402","title":"Get the current STX token price via x402 micropayment on Base for $0.02 per request.","tagline":"Get the current STX token price via x402 micropayment on Base for $0.02 per request.","description":"This endpoint returns the current price of the STX (Stacks) token. It is part of the lowpaymentfee.com platform, which offers a suite of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network.\n\nThe specific endpoint `/api/v1/tokens/STX/price` is a POST endpoint that returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). No API keys or rate limits are required — callers simply attach an x402 payment header to each request. The payment timeout is 300 seconds.\n\nThe broader lowpaymentfee.com platform lists additional endpoints for token quotes, exchange rates, gas estimates, sentiment analysis, text summarization, classification, embeddings, geocoding, validation, conversion, and data export — all priced at $0.02 per call. Documentation pages exist but appear to require a wallet connection and contain no further technical detail at crawl time.","tags":[],"capabilities":["token-price-lookup","stx-price","crypto-market-data","x402-micropayment","usdc-base-settlement","pay-per-call"],"categories":["finance","crypto"],"synonyms":["STX price API","Stacks token price","crypto price feed","token price endpoint","STX market data","x402 price API","micropayment crypto API"],"warnings":["No request or response schema documented — callers must discover the payload format experimentally.","Documentation, pricing, and README pages are effectively empty (wallet-connect gate only).","No SLA, rate-limit, or uptime guarantees are documented.","The platform lists many endpoints but it is unclear which are fully functional beyond this one."],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/STX/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/STX/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The x402 challenge is live and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response body format, no example responses, and the docs/pricing/README pages all render only a wallet-connect prompt with no usable content. The actual response shape for the STX price endpoint must be 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'0.02':13,28,114,174 '000':103 '0x8335':108 '20':102 '2913':109 '300':143 '6':119 'STX market data' 'STX price API' 'Stacks token price' 'addit':150 'advertis':97 'ai/ml':62 'analysi':160 'analyt':61 'api':58,122 'appear':181 'attach':131 'base':11,26,81,104,111 'broader':146 'call':57,176 'caller':129 'challeng':96 'classif':163 'connect':186 'contain':188 'convers':167 'cost':100 'crawl':194 'crypto price feed' 'crypto-market-data' 'current':3,18,35 'data':60,65,169 'decim':120 'detail':192 'document':177 'embed':164 'endpoint':32,70,85,90,151 'equal':113 'estim':158 'exchang':155 'exist':179 'export':170 'finance/web3':64 'gas':157 'geocod':165 'get':1,16 'header':135 'infer':63 'json':93 'key':123 'limit':126 'list':149 'lowpaymentfee.com':47,147 'maximum':99 'micropay':9,24 'micropayment crypto API' 'network':82 'offer':50 'page':178 'part':44 'pay':55 'pay-per-cal':54 'pay-per-call' 'payment':74,134,140 'per':14,29,56,115,175 'platform':48,148 'post':89 'price':6,21,36,172 'protocol':75 'quot':154 'rate':125,156 'request':15,30,116,138 'requir':128,183 'return':33,92 'second':144 'sentiment':159 'servic':68 'settl':76 'simpli':130 'span':59 'specif':84 'stack':40 'stx':4,19,39 'stx-price' 'suit':52 'summar':162 'technic':191 'text':161 'time':195 'timeout':141 'token':5,20,41,153 'token price endpoint' 'token-price-lookup' 'unit':105 'usdc':78,107,117 'usdc-base-settlement' 'use':71,118 'util':67 'valid':166 'via':7,22 'wallet':185 'x402':8,23,73,95,133 'x402 price API' 'x402-micropayment'","prices":[{"id":"c82456e1-a1c6-4a49-9498-6841213947f0","listingId":"2eda8a12-6102-4e3a-96ee-e63492595519","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/STX/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":"2026-04-18T18:57:20.104Z"}],"sources":[{"listingId":"2eda8a12-6102-4e3a-96ee-e63492595519","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/STX/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:20.104Z","lastSeenAt":"2026-04-23T20:03:03.042Z"}],"details":{"listingId":"2eda8a12-6102-4e3a-96ee-e63492595519","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/STX/price \\\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 endpoint returns HTTP 402 with an x402 challenge advertising USDC on Base, maxAmountRequired 20000 (=$0.02).","source_url":"https://lowpaymentfee.com/api/v1/tokens/STX/price"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/tokens/STX/price"},{"claim":"The site lists additional endpoints for analytics, AI, finance, and utility services all at $0.02.","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching the current STX token price for portfolio tracking or trading bots","Integrating real-time STX pricing into a DeFi dashboard","Agent-driven price checks before executing on-chain trades","Comparing STX price across multiple data sources"],"bestFor":["Agents or apps that need on-demand STX price data without API key management","Developers wanting pay-per-call crypto pricing with no subscription commitment","x402-compatible clients settling micropayments in USDC on Base"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users needing historical OHLCV or candlestick data (only current price indicated)","Consumers who cannot send x402 payment headers (traditional REST-only clients)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:47.099Z"},"updatedAt":"2026-04-23T20:03:03.042Z"}}