{"id":"6156ca9a-1cf5-47c8-b4c0-15b05203402d","shortId":"xS54ak","kind":"x402","title":"Real-time XRP token price via x402 micropayment on Base for $0.02 per request.","tagline":"Real-time XRP token price via x402 micropayment on Base for $0.02 per request.","description":"This endpoint returns the current price of XRP via a pay-per-call x402 protocol. It is part of the lowpaymentfee.com platform, which offers a broad catalog of data, AI, finance, and utility APIs all priced at $0.02 per request. Payment is settled in USDC on the Base network — no API keys, no rate limits, and no subscriptions required. The caller simply includes an X-PAYMENT header with a valid x402 payment proof.\n\nThe specific endpoint `/api/v1/tokens/XRP/price` is a POST endpoint that returns JSON. Based on the site's Finance & Web3 category (which includes price feeds, exchange rates, token quotes, and gas estimates), this endpoint likely returns a current market price for the XRP token. The x402 challenge confirms the endpoint is live, accepting x402 version 1 with the \"exact\" payment scheme, requiring up to 20,000 base units of USDC (i.e., $0.02) per call, with a 300-second payment timeout.\n\nThe broader lowpaymentfee.com platform also exposes AI endpoints (sentiment analysis, summarization, classification, embeddings), data/analytics endpoints, and infrastructure utilities (geocoding, validation, conversion), all at the same $0.02 per-request price point. Documentation beyond the landing page is sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional technical detail.","tags":[],"capabilities":["token-price","xrp-price","x402-payment","usdc-base","pay-per-call","real-time-price","no-api-key","json-response"],"categories":["finance","crypto"],"synonyms":["XRP price API","crypto price feed","token price lookup","XRP market data","ripple price endpoint","x402 crypto API","micropayment price API"],"warnings":["No API documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no technical content.","Request body schema and response schema are undocumented; example_request_json and example_response_json cannot be provided.","The platform lists many endpoints across diverse categories (AI, analytics, finance, utils) all at $0.02 — quality and reliability of each is unverified.","No SLA, rate-limit, or uptime guarantees are documented."],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/XRP/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/XRP/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 ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, and the docs/pricing/API pages are all empty beyond a wallet-connect prompt. The response shape and request parameters must be guessed from the URL pattern 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'0.02':13,28,69,175,209 '000':169 '1':159 '20':168 '300':180 'XRP market data' 'XRP price API' 'accept':156 'addit':237 'ai':61,190 'also':188 'analysi':193 'api':65,82,226 'base':11,26,79,117,170 'beyond':216 'broad':57 'broader':185 'call':44,177 'caller':92 'catalog':58 'categori':124 'challeng':150 'classif':195 'confirm':151 'connect':232 'convers':204 'crypto price feed' 'current':35,141 'data':60 'data/analytics':197 'detail':239 'doc':223 'document':215 'embed':196 'endpoint':32,108,113,137,153,191,198 'estim':135 'exact':162 'exchang':129 'expos':189 'feed':128 'financ':62,122 'gas':134 'geocod':202 'header':99 'i.e':174 'includ':94,126 'infrastructur':200 'json':116 'json-response' 'key':83 'land':218 'like':138 'limit':86 'live':155 'lowpaymentfee.com':52,186 'market':142 'micropay':9,24 'micropayment price API' 'network':80 'no-api-key' 'offer':55 'page':219,227 'part':49 'pay':42 'pay-per-cal':41 'pay-per-call' 'payment':72,98,104,163,182 'per':14,29,43,70,176,211 'per-request':210 'platform':53,187 'point':214 'post':112 'price':6,21,36,67,127,143,213,224 'prompt':234 'proof':105 'protocol':46 'quot':132 'rate':85,130 'real':2,17 'real-tim':1,16 'real-time-price' 'render':229 'request':15,30,71,212 'requir':90,165 'return':33,115,139 'ripple price endpoint' 'scheme':164 'second':181 'sentiment':192 'settl':74 'simpli':93 'site':120 'spars':221 'specif':107 'subscript':89 'summar':194 'technic':238 'time':3,18 'timeout':183 'token':5,20,131,147 'token price lookup' 'token-price' 'unit':171 'usdc':76,173 'usdc-base' 'util':64,201 'valid':102,203 'version':158 'via':7,22,39 'wallet':233 'web3':123 'x':97 'x-payment':96 'x402':8,23,45,103,149,157 'x402 crypto API' 'x402-payment' 'xrp':4,19,38,146 'xrp-price'","prices":[{"id":"2dd9ae22-c484-4750-b413-2178597c75ab","listingId":"6156ca9a-1cf5-47c8-b4c0-15b05203402d","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/XRP/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":"2026-04-18T18:57:27.340Z"}],"sources":[{"listingId":"6156ca9a-1cf5-47c8-b4c0-15b05203402d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/XRP/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:27.340Z","lastSeenAt":"2026-04-23T19:01:40.593Z"}],"details":{"listingId":"6156ca9a-1cf5-47c8-b4c0-15b05203402d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/XRP/price \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns HTTP 402 with x402 version 1 challenge, confirming it is live","source_url":"https://lowpaymentfee.com/api/v1/tokens/XRP/price"},{"claim":"Price is $0.02 per request (20,000 base units of USDC with 6 decimals on Base)","source_url":"https://lowpaymentfee.com"},{"claim":"Platform advertises no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/XRP/price"},{"claim":"Docs, pricing, and API pages render only 'Connect wallet' with no additional content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching the current XRP price for a trading bot or portfolio tracker","Integrating real-time XRP pricing into a DeFi application without managing API keys","Agent-driven price lookups where per-call micropayments replace subscription billing","Comparing XRP prices across sources in an aggregation pipeline"],"bestFor":["Developers who want pay-per-call crypto price data without subscriptions","AI agents that can settle x402 payments autonomously on Base","Low-volume or bursty workloads where flat $0.02/request is cost-effective"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users who need historical OHLCV data or candlestick charts (endpoint appears to return spot price only)","Consumers without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:46.811Z"},"updatedAt":"2026-04-23T19:01:40.593Z"}}