{"id":"a310b2bd-db04-450b-8e2d-29f4b6d6f2b2","shortId":"ZkK6nY","kind":"x402","title":"Fetch RPL token data via x402 micropayment on Base for $0.02 per request.","tagline":"Fetch RPL token data via x402 micropayment on Base for $0.02 per request.","description":"This endpoint at lowpaymentfee.com returns token data for RPL (Rocket Pool) via the x402 payment protocol. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services. All endpoints on the platform share a uniform $0.02-per-request pricing model settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/tokens/RPL` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the provider's address on Base. No API keys, accounts, or rate limits are advertised — access is gated purely by micropayment.\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 what fields the RPL token endpoint actually returns. The endpoint is confirmed live (returns a valid 402 challenge), but the exact response schema and supported query parameters are unknown.","tags":[],"capabilities":["x402-payment","token-data","usdc-base","pay-per-request","crypto-market-data","json-api"],"categories":["finance","crypto"],"synonyms":["RPL token price","Rocket Pool token data","crypto token API","x402 token endpoint","micropayment API","Base USDC API","token quote","RPL market data"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All doc/pricing/README pages return only a 'Connect wallet' prompt with no technical content","No example request or response payloads could be found","The exact data fields returned for the RPL token endpoint are unverified"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/RPL","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/RPL","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and all documentation pages render only a wallet-connect prompt. The actual data returned is entirely 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'0.02':11,24,80,131 '000':127 '20':126 '402':215 '6':135 'Base USDC API' 'RPL market data' 'RPL token price' 'Rocket Pool token data' 'accept':97 'access':153 'account':147 'actual':205 'addit':183 'address':141 'advertis':152 'ai/ml':64 'analyt':63 'api':55,145,169 'attach':112 'base':9,22,91,128,143 'beyond':160 'broader':48 'call':54 'caller':111 'challeng':216 'confirm':210 'connect':178 'contain':118 'crypto token API' 'crypto-market-data' 'data':4,17,33,62,68 'decim':136 'descript':197 'detail':185 'doc':168 'document':159 'endpoint':28,73,95,204,208 'exact':219 'exampl':192 'extrem':165 'fetch':1,14 'field':200 'finance/web3':66 'gate':155 'handl':105 'header':117 'i.e':130 'infer':65 'inlin':106 'json':102 'json-api' 'key':146 'land':162 'limit':150 'live':211 'lowpaymentfee.com':30 'market':67 'micropay':7,20,158 'micropayment API' 'model':85 'network':92 'offer':56 'openapi':189 'page':163,173 'paramet':225 'part':45 'pay':52 'pay-per-cal':51 'pay-per-request' 'payload':194 'payment':41,103,116,122 'per':12,25,53,82 'per-request':81 'platform':76 'pool':37 'post':98 'price':84,170 'prompt':180 'protocol':42,110 'provid':60,139 'pure':156 'queri':224 'rate':149 'readm':172 'render':175 'request':13,26,83,99 'request/response':193 'respons':220 'return':31,101,206,212 'rocket':36 'rpl':2,15,35,202 'schema':221 'servic':71 'settl':86 'share':77 'sign':120 'sinc':132 'span':61 'spars':166 'spec':190 'specif':94 'suit':49 'support':223 'technic':184 'token':3,16,32,203 'token quote' 'token-data' 'uniform':79 'unit':129 'unknown':227 'usdc':88,121,133 'usdc-base' 'use':134 'util':70 'valid':214 'via':5,18,38,107 'wallet':179 'x':115 'x-payment':114 'x402':6,19,40,109 'x402 token endpoint' 'x402-payment'","prices":[{"id":"aaba83d8-ef93-4a4e-b0ad-b2b6c4148132","listingId":"a310b2bd-db04-450b-8e2d-29f4b6d6f2b2","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/RPL","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:12.866Z"}],"sources":[{"listingId":"a310b2bd-db04-450b-8e2d-29f4b6d6f2b2","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/RPL","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:12.866Z","lastSeenAt":"2026-04-23T21:32:34.476Z"}],"details":{"listingId":"a310b2bd-db04-450b-8e2d-29f4b6d6f2b2","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/RPL \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-signed-payment>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge advertising USDC on Base, maxAmountRequired 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/tokens/RPL"},{"claim":"All APIs 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":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/tokens/RPL"}],"useCases":["Fetching current RPL (Rocket Pool) token information programmatically","Integrating token data into trading bots or portfolio dashboards without API key management","Paying per-call for crypto data without subscriptions or commitments"],"bestFor":["Agents or bots that need on-demand token data with no signup","Low-volume or sporadic crypto data lookups where per-call pricing is economical","x402-native workflows that settle payments in USDC on Base"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users who need comprehensive historical token data or OHLCV candles (no evidence this is supported)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:47.457Z"},"updatedAt":"2026-04-23T21:32:34.476Z"}}