{"id":"9cd7d433-db71-404a-a530-a0672387b3ed","shortId":"WScLRD","kind":"x402","title":"Get the current UNI token price via x402 micropayment on Base for $0.02 per request.","tagline":"Get the current UNI token price via x402 micropayment on Base for $0.02 per request.","description":"This endpoint returns the current price of the UNI (Uniswap) token. It is part of a broader suite of pay-per-request APIs hosted at lowpaymentfee.com, covering finance, crypto, AI, analytics, and utility services. Payment is handled via the x402 protocol on the Base network using USDC, with no API keys, rate limits, or subscriptions required.\n\nThe specific endpoint `/api/v1/tokens/UNI/price` accepts POST requests and charges 0.02 USDC per call (20,000 base units of USDC with 6 decimals). The x402 challenge confirms the endpoint is live and settles payments to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. The response MIME type is `application/json`.\n\nDocumentation beyond the landing page is minimal — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example responses, and no schema describing the returned price object. The endpoint appears functional based on the 402 challenge, but the exact response format must be inferred.","tags":[],"capabilities":["token-price-lookup","x402-payment","usdc-settlement","base-network","real-time-pricing","no-api-key","pay-per-request"],"categories":["finance","crypto"],"synonyms":["UNI price API","Uniswap token price","crypto price feed","token price endpoint","x402 crypto API","micropayment price API"],"warnings":["No OpenAPI or response schema available — response format is unknown","Documentation pages (/docs, /api, /pricing, /README) contain no useful content","No SLA, rate-limit, or uptime guarantees documented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/UNI/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/UNI/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge with clear pricing and network details, but there is no OpenAPI spec, no documented response schema, no example responses, and all documentation pages are empty beyond a wallet-connect 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'0.02':13,28,97 '000':102 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':123 '20':101 '402':181 '6':108 'UNI price API' 'Uniswap token price' 'accept':92 'address':122 'ai':61 'analyt':62 'api':54,81,141 'appear':176 'application/json':131 'base':11,26,75,103,125,178 'base-network' 'beyond':133 'broader':47 'call':100 'challeng':112,182 'charg':96 'confirm':113 'connect':150 'cover':58 'crypto':60 'crypto price feed' 'current':3,18,35 'decim':109 'describ':169 'detail':157 'doc':140 'document':132 'endpoint':32,90,115,175 'exact':185 'exampl':164 'financ':59 'format':187 'function':177 'get':1,16 'handl':68 'host':55 'infer':190 'key':82 'land':135 'limit':84 'live':117 'lowpaymentfee.com':57 'micropay':9,24 'micropayment price API' 'mime':128 'minim':138 'must':188 'network':76 'no-api-key' 'object':173 'openapi':161 'page':136,145 'part':44 'pay':51 'pay-per-request':50 'payment':66,120 'per':14,29,52,99 'post':93 'price':6,21,36,142,172 'prompt':152 'protocol':72 'rate':83 'readm':144 'real-time-pricing' 'render':147 'request':15,30,53,94 'requir':87 'respons':127,165,186 'return':33,171 'schema':168 'servic':65 'settl':119 'spec':162 'specif':89 'subscript':86 'suit':48 'technic':156 'token':5,20,41 'token price endpoint' 'token-price-lookup' 'type':129 'uni':4,19,39 'uniswap':40 'unit':104 'usdc':78,98,106 'usdc-settlement' 'use':77 'util':64 'via':7,22,69 'wallet':151 'x402':8,23,71,111 'x402 crypto API' 'x402-payment'","prices":[{"id":"7984bbc9-ff95-443c-b298-b8c0b9863fd1","listingId":"9cd7d433-db71-404a-a530-a0672387b3ed","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/UNI/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":"2026-04-18T18:57:11.075Z"}],"sources":[{"listingId":"9cd7d433-db71-404a-a530-a0672387b3ed","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/UNI/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:11.075Z","lastSeenAt":"2026-04-23T21:32:34.446Z"}],"details":{"listingId":"9cd7d433-db71-404a-a530-a0672387b3ed","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/UNI/price \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge on Base network using USDC at 20000 base units ($0.02)","source_url":"https://lowpaymentfee.com/api/v1/tokens/UNI/price"},{"claim":"Site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/UNI/price"}],"useCases":["Fetching the current UNI token price for trading bots or portfolio dashboards","Integrating real-time token pricing into DeFi applications without managing API keys","Agent-driven price lookups where per-call micropayments replace subscription billing"],"bestFor":["Developers needing simple, keyless access to UNI token prices","AI agents that can settle x402 payments autonomously on Base","Low-volume or sporadic price queries where subscriptions are wasteful"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users who need historical price data or OHLCV candles (only current price indicated)","Anyone unable to pay with USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:47.501Z"},"updatedAt":"2026-04-23T21:32:34.446Z"}}