{"id":"0b6ba0d0-783d-443c-9e21-27f34b35ee8d","shortId":"ruwsXY","kind":"x402","title":"Pay-per-call PayPal payments endpoint on Base via x402, $0.02/request in USDC.","tagline":"Pay-per-call PayPal payments endpoint on Base via x402, $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides a \"Premium API Access\" resource at the path `/api/v1/paypal/payments/42`. It is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated via the x402 payment protocol on the Base network.\n\nThe specific endpoint accepts POST requests and is priced at 20,000 base units of USDC (contract `0x8335…2913` on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is made inline via the `X-PAYMENT` header; no API keys or accounts are required. The x402 challenge confirms version 1 of the protocol with an \"exact\" payment scheme and a 300-second timeout window.\n\nThe platform's landing page advertises uniform $0.02 pricing across all endpoints, no rate limits, no minimums, and instant access. However, documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all returned only a \"Connect wallet\" prompt with no substantive content, so the actual request/response schema for this PayPal payments endpoint is unknown. There is no OpenAPI spec, no example payloads, and no description of what data the endpoint returns. The endpoint is live (402 challenge confirmed), but the lack of documentation makes it difficult to assess what value it delivers.","tags":[],"capabilities":["x402-payment","per-call-billing","usdc-base","paypal-payments","no-api-key","post-endpoint"],"categories":["finance","payments"],"synonyms":["paypal payment api","x402 paypal","pay-per-call payments","base network api","usdc micropayment","lowpaymentfee","crypto payment endpoint"],"warnings":["No documentation available — all doc pages (/docs, /pricing, /api, /README) return only 'Connect wallet'","No OpenAPI or schema describing request/response format for this endpoint","Purpose of '/api/v1/paypal/payments/42' is unclear — 'Premium API Access' is generic","Cannot verify what data or functionality this endpoint actually provides"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/42","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/paypal/payments/42","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what the endpoint actually does, what request body it expects, or what it returns. All doc pages show only 'Connect wallet'. No OpenAPI spec exists. The listing is effectively a stub with confirmed 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'/api/v1/paypal/payments/42':44 '/docs':171 '/pricing':172 '/readme':174 '/request':13,28 '0.02':12,27,104,155 '000':92 '0x8335':98 '1':133 '20':91 '2913':99 '300':144 '402':219 '6':109 'accept':84 'access':39,167 'account':125 'across':157 'actual':188 'advertis':153 'ai/ml':63 'analyt':62 'api':38,59,122 'assess':231 'base':9,24,79,93,101 'base network api' 'broader':50 'call':4,19,58 'challeng':130,220 'confirm':131,221 'connect':179 'content':185 'contract':97 'crypto':66 'crypto payment endpoint' 'data':61,211 'decim':110 'deliv':235 'descript':208 'difficult':229 'document':169,226 'dozen':53 'endpoint':7,22,32,83,159,195,213,216 'equal':103 'exact':139 'exampl':204 'financ':65 'gate':71 'header':120 'howev':168 'infer':64 'inlin':114 'instant':166 'key':123 'lack':224 'land':151 'limit':162 'live':218 'lowpaymentfee' 'lowpaymentfee.com':34 'made':113 'make':227 'minimum':164 'network':80 'no-api-key' 'offer':52 'openapi':201 'page':152,170 'part':47 'path':43 'pay':2,17,56 'pay-per-cal':1,16,55 'pay-per-call payments' 'payload':205 'payment':6,21,75,111,119,140,194 'paypal':5,20,193 'paypal payment api' 'paypal-payments' 'per':3,18,57,105 'per-call-billing' 'platform':51,149 'post':85 'post-endpoint' 'premium':37 'price':89,156 'prompt':181 'protocol':76,136 'provid':35 'rate':161 'request':86,106 'request/response':189 'requir':127 'resourc':40 'return':176,214 'schema':190 'scheme':141 'second':145 'servic':69 'span':60 'spec':202 'specif':82 'substant':184 'timeout':146 'uniform':154 'unit':94 'unknown':197 'usdc':15,30,96,107 'usdc micropayment' 'usdc-base' 'use':108 'util':68 'valu':233 'version':132 'via':10,25,72,115 'wallet':180 'window':147 'x':118 'x-payment':117 'x402':11,26,74,129 'x402 paypal' 'x402-payment'","prices":[{"id":"b65f313d-ec89-4739-b861-e67e5c658dc7","listingId":"0b6ba0d0-783d-443c-9e21-27f34b35ee8d","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/paypal/payments/42","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:08.881Z"}],"sources":[{"listingId":"0b6ba0d0-783d-443c-9e21-27f34b35ee8d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/42","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:08.881Z","lastSeenAt":"2026-04-23T16:02:32.703Z"}],"details":{"listingId":"0b6ba0d0-783d-443c-9e21-27f34b35ee8d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/42 \\\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":"Endpoint returns a valid x402 challenge with status 402 and x402Version 1","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/42"},{"claim":"Price is 20000 base units of USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), equaling $0.02","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/42"},{"claim":"Platform advertises $0.02/request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages return only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Triggering or querying PayPal payment information via a single paid API call","Integrating pay-per-use payment endpoints into agent workflows without API key management","Accessing financial payment data on-demand with USDC micropayments on Base"],"bestFor":["Developers wanting keyless, pay-per-call access to a payments API","AI agents that can settle x402 challenges on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Anyone needing documented request/response schemas before integration","High-volume production use cases where $0.02/call adds up without volume discounts","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.917Z"},"updatedAt":"2026-04-23T16:02:32.703Z"}}