{"id":"b75f40d3-4ce8-4f66-ab0a-7c92e3376def","shortId":"T9eZfS","kind":"x402","title":"Pay-per-call PayPal payments endpoint on Base via x402, settled in USDC at $0.02/request.","tagline":"Pay-per-call PayPal payments endpoint on Base via x402, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides a \"Premium API Access\" resource located at `/api/v1/paypal/payments/29`. 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 using USDC.\n\nThe specific endpoint accepts POST requests and is priced at a maximum of 20,000 base units of USDC (0.02 USD per request, since USDC uses 6 decimals). Payment is made via the x402 `exact` scheme to the wallet `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, using the USDC contract at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`. The endpoint requires an `X-PAYMENT` header and has a 300-second payment timeout.\n\nDocumentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no further content. The endpoint's actual functionality — what it returns when called with a valid payment — is not documented. The title \"Premium API Access\" and the path segment `paypal/payments/29` suggest it may relate to PayPal payment processing or data, but this cannot be confirmed from available material. No OpenAPI schema, request/response examples, or detailed documentation were found.","tags":[],"capabilities":["x402-payment-gated","usdc-settlement","base-network","pay-per-call","post-endpoint","paypal-payments"],"categories":["finance","payments"],"synonyms":["paypal payment api","x402 paypal","usdc payment endpoint","low fee payment api","base network api","pay per call api","crypto payment gateway"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content","The actual functionality of this endpoint is unknown; 'paypal/payments/29' is suggestive but unconfirmed","No request or response schema is documented","No OpenAPI spec or examples found","The endpoint may involve regulated financial services (payments) — verify compliance before use"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/29","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/29","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (returns a valid x402 402 challenge), but there is virtually no documentation on what the endpoint actually does, what request body it expects, or what it returns. The title 'Premium API Access' is generic and the path hints at PayPal payments but nothing is confirmed. Docs pages are empty beyond a wallet connect 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'/request':17,34 '0.02':16,33,107 '000':102 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':127 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':135 '20':101 '300':147 '6':114 'accept':91 'access':43,195 'across':64 'actual':177 'ai/ml':69 'analyt':68 'api':42,62,158,194 'avail':217 'base':9,26,84,103,129 'base network api' 'base-network' 'broader':53 'call':4,21,61,183 'cannot':213 'categori':65 'confirm':215 'connect':167 'content':173 'contract':133 'crawl':156 'crypto payment gateway' 'data':67,210 'decim':115 'detail':225 'doc':157 'document':151,190,226 'dozen':56 'endpoint':7,24,36,63,90,137,175 'exact':122 'exampl':223 'extrem':153 'financ':71 'found':228 'function':178 'gate':76 'header':143 'infer':70 'infrastructur':73 'like':66 'locat':45 'low fee payment api' 'lowpaymentfee.com':38 'made':118 'materi':218 'maximum':99 'may':203 'network':85 'offer':55 'openapi':220 'page':162 'part':50 'path':198 'pay':2,19,59 'pay per call api' 'pay-per-cal':1,18,58 'pay-per-call' 'payment':6,23,80,116,142,149,187,207 'paypal':5,22,206 'paypal payment api' 'paypal-payments' 'paypal/payments/29':200 'per':3,20,60,109 'platform':54 'post':92 'post-endpoint' 'premium':41,193 'price':96,159 'process':208 'prompt':169 'protocol':81 'provid':39 'readm':161 'relat':204 'request':93,110 'request/response':222 'requir':138 'resourc':44 'return':164,181 'schema':221 'scheme':123 'second':148 'segment':199 'settl':12,29 'sinc':111 'spars':154 'specif':89 'suggest':201 'timeout':150 'titl':192 'unit':104 'usd':108 'usdc':14,31,87,106,112,132 'usdc payment endpoint' 'usdc-settlement' 'use':86,113,130 'util':74 'valid':186 'via':10,27,119 'wallet':126,168 'x':141 'x-payment':140 'x402':11,28,79,121 'x402 paypal' 'x402-payment-gated'","prices":[{"id":"bc2dc749-39d3-48a7-93c7-e87ada228852","listingId":"b75f40d3-4ce8-4f66-ab0a-7c92e3376def","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/29","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:05.280Z"}],"sources":[{"listingId":"b75f40d3-4ce8-4f66-ab0a-7c92e3376def","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/29","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:05.280Z","lastSeenAt":"2026-04-23T17:31:52.644Z"}],"details":{"listingId":"b75f40d3-4ce8-4f66-ab0a-7c92e3376def","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/29 \\\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 HTTP 402 with x402 challenge, maxAmountRequired of 20000 base units USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/29"},{"claim":"Platform 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 is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/29"},{"claim":"Docs, API, pricing, and README pages return only 'Connect wallet' with no substantive content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic access to PayPal payment-related data or operations via a single micropayment per call","Agent-driven payment workflows where no API key or subscription is needed","Integrating PayPal payment functionality into crypto-native applications"],"bestFor":["Developers wanting keyless, pay-per-use API access settled in USDC on Base","AI agents that can autonomously pay for API calls via x402","Users who prefer micropayment-based access over subscription models"],"notFor":["Users who need detailed API documentation or guaranteed SLAs before integrating","High-volume consumers who would benefit from bulk pricing or rate-limited plans","Anyone needing non-crypto payment options (no fiat billing available)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:05.11Z"},"updatedAt":"2026-04-23T17:31:52.644Z"}}