{"id":"8e77bffc-cd37-48c1-8c4f-b12a6e084da6","shortId":"MDZpR6","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/55`. It is part of a broader platform offering dozens of pay-per-call API endpoints across categories like data analytics, AI/ML inference, finance, and infrastructure utilities — all gated by the x402 payment protocol on the Base network.\n\nThe specific endpoint accepts POST requests and charges up to 20,000 base units of USDC (contract `0x8335…2913` on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 \"exact\" scheme by including an X-PAYMENT header. No API keys or accounts are required; callers pay per request with no rate limits or minimum commitments. The payment timeout is 300 seconds.\n\nThe endpoint's exact functionality is not well-documented — the path suggests PayPal payment processing, but no OpenAPI schema, request/response examples, or detailed documentation were found in the crawl. The docs, pricing, API, and README pages all returned only a \"Connect wallet\" prompt with no substantive content. The platform landing page confirms the $0.02/request pricing and lists this as one of many available endpoints, but does not describe what `/api/v1/paypal/payments/55` specifically returns or accepts beyond the x402 challenge metadata.","tags":[],"capabilities":["x402-payment-gated","per-request-billing","usdc-base-network","paypal-payments","no-api-key-required","post-method"],"categories":["finance","payments"],"synonyms":["paypal payment api","x402 paypal","pay-per-call payments","lowpaymentfee","base network api","usdc micropayment api","crypto-gated api"],"warnings":["No OpenAPI schema or endpoint documentation available","Exact functionality of /api/v1/paypal/payments/55 is unknown — path suggests PayPal payments but no details are provided","All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' prompt with no substantive content","No request body schema or response schema documented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/55","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/55","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the actual functionality behind '/api/v1/paypal/payments/55' is unclear. Docs pages returned only 'Connect wallet' with no 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'/request':13,28,207 '0.02':12,27,106,206 '000':94 '0x8335':100 '20':93 '2913':101 '300':150 '6':111 'accept':86,227 'access':39 'account':132 'across':61 'ai/ml':66 'analyt':65 'api':38,59,129,185 'avail':216 'base':9,24,81,95,103 'base network api' 'beyond':228 'broader':50 'call':4,19,58 'caller':135 'categori':62 'challeng':231 'charg':90 'commit':145 'confirm':204 'connect':193 'content':199 'contract':99 'crawl':181 'crypto-gated api' 'data':64 'decim':112 'describ':221 'detail':175 'doc':183 'document':161,176 'dozen':53 'endpoint':7,22,32,60,85,153,217 'equal':105 'exact':119,155 'exampl':173 'financ':68 'found':178 'function':156 'gate':73 'header':127 'includ':122 'infer':67 'infrastructur':70 'key':130 'land':202 'like':63 'limit':142 'list':210 'lowpaymentfee' 'lowpaymentfee.com':34 'made':115 'mani':215 'metadata':232 'minimum':144 'network':82 'no-api-key-required' 'offer':52 'one':213 'openapi':170 'page':188,203 'part':47 'path':43,163 'pay':2,17,56,136 'pay-per-cal':1,16,55 'pay-per-call payments' 'payment':6,21,77,113,126,147,166 'paypal':5,20,165 'paypal payment api' 'paypal-payments' 'per':3,18,57,107,137 'per-request-billing' 'platform':51,201 'post':87 'post-method' 'premium':37 'price':184,208 'process':167 'prompt':195 'protocol':78 'provid':35 'rate':141 'readm':187 'request':88,108,138 'request/response':172 'requir':134 'resourc':40 'return':190,225 'schema':171 'scheme':120 'second':151 'specif':84,224 'substant':198 'suggest':164 'timeout':148 'unit':96 'usdc':15,30,98,109 'usdc micropayment api' 'usdc-base-network' 'use':110 'util':71 'via':10,25,116 'wallet':194 'well':160 'well-docu':159 'x':125 'x-payment':124 'x402':11,26,76,118,230 'x402 paypal' 'x402-payment-gated'","prices":[{"id":"f5d21f4d-7e12-496f-9078-164dbbeff619","listingId":"8e77bffc-cd37-48c1-8c4f-b12a6e084da6","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/55","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:13.690Z"}],"sources":[{"listingId":"8e77bffc-cd37-48c1-8c4f-b12a6e084da6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/55","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:13.690Z","lastSeenAt":"2026-04-23T14:01:28.443Z"}],"details":{"listingId":"8e77bffc-cd37-48c1-8c4f-b12a6e084da6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/55 \\\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 a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/55"},{"claim":"Platform charges $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 contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/55"}],"useCases":["Programmatic PayPal payment initiation or lookup via a crypto-gated endpoint","Agent-driven payment workflows that settle per-call in USDC on Base","Integrating PayPal payment data into Web3 or DeFi pipelines"],"bestFor":["Developers wanting keyless, pay-per-use PayPal-related API access","AI agents that can settle x402 payments on Base","Users who prefer crypto micropayments over subscription billing"],"notFor":["Users needing detailed API documentation or guaranteed SLAs before integration","High-volume batch PayPal operations where per-call pricing is inefficient","Anyone without a Base-compatible wallet or USDC holdings"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.684Z"},"updatedAt":"2026-04-23T14:01:28.443Z"}}