{"id":"39b27be5-95ce-44ea-b1fd-0f64f7d492f7","shortId":"pf68ZE","kind":"x402","title":"Pay-per-call PayPal payments endpoint on Base via x402, priced at $0.02 USDC per request.","tagline":"Pay-per-call PayPal payments endpoint on Base via x402, priced at $0.02 USDC per request.","description":"This endpoint at lowpaymentfee.com provides a \"Premium API Access\" resource at the path `/api/v1/paypal/payments/73`. 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 probed accepts POST requests and charges 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals), which equals $0.02 per request. Payment is made via the x402 \"exact\" scheme, meaning the caller includes an X-PAYMENT header with a signed payment for the exact amount. No API keys or rate limits are advertised; access is granted purely on a per-request payment basis.\n\nThe platform's landing page lists a uniform $0.02/request pricing across all endpoints. However, the actual functionality behind this particular `/api/v1/paypal/payments/73` path is unclear — the name suggests PayPal payment processing, but no documentation, request/response schemas, or usage examples are available. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. Without an OpenAPI spec or example payloads, the exact input parameters and response format remain unknown.","tags":[],"capabilities":["x402-payment-gated","per-request-billing","base-network","usdc-settlement","paypal-payments","no-api-key-required","post-method"],"categories":["payments","finance"],"synonyms":["paypal payment api","x402 paypal","pay-per-call payment endpoint","lowpaymentfee","crypto-gated api","base usdc api","micropayment api"],"warnings":["No API documentation available — all doc pages render only 'Connect wallet' with no content","No request or response schema provided; input parameters and output format are unknown","The purpose of /api/v1/paypal/payments/73 is unclear — it may or may not actually interact with PayPal","The numbered path segment (73) suggests a resource ID but its meaning is undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/73","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/73","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 402 challenge, confirming pricing and payment details. However, there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The docs pages are empty (\"Connect wallet\" only). The actual functionality behind the PayPal payments path is entirely 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'/request':166 '0.02':14,31,110,165 '000':97 '0x8335':102 '20':96 '2913':103 '6':106 'accept':91 'access':43,146 'across':65,168 'actual':173 'advertis':145 'ai/ml':70 'amount':137 'analyt':69 'api':42,63,139,200 'avail':197 'base':9,26,85,98,105 'base usdc api' 'base-network' 'basi':156 'behind':175 'broader':54 'call':4,21,62 'caller':123 'categori':66 'charg':95 'connect':209 'content':215 'crypto-gated api' 'data':68 'decim':107 'doc':199 'document':190 'dozen':57 'endpoint':7,24,36,64,89,170 'equal':109 'exact':119,136,224 'exampl':195,221 'financ':72 'format':229 'function':174 'gate':77 'grant':148 'header':129 'howev':171 'includ':124 'infer':71 'infrastructur':74 'input':225 'key':140 'land':160 'like':67 'limit':143 'list':162 'lowpaymentfee' 'lowpaymentfee.com':38 'made':115 'mean':121 'micropayment api' 'name':183 'network':86 'no-api-key-required' 'offer':56 'openapi':218 'page':161,204 'paramet':226 'part':51 'particular':177 'path':47,179 'pay':2,19,60 'pay-per-cal':1,18,59 'pay-per-call payment endpoint' 'payload':222 'payment':6,23,81,113,128,133,155,186 'paypal':5,22,185 'paypal payment api' 'paypal-payments' 'per':3,16,20,33,61,111,153 'per-request':152 'per-request-billing' 'platform':55,158 'post':92 'post-method' 'premium':41 'price':12,29,167,201 'probe':90 'process':187 'prompt':211 'protocol':82 'provid':39 'pure':149 'rate':142 'readm':203 'remain':230 'render':206 'request':17,34,93,112,154 'request/response':191 'resourc':44 'respons':228 'schema':192 'scheme':120 'sign':132 'spec':219 'specif':88 'substant':214 'suggest':184 'unclear':181 'uniform':164 'unit':99 'unknown':231 'usag':194 'usdc':15,32,101 'usdc-settlement' 'util':75 'via':10,27,116 'wallet':210 'without':216 'x':127 'x-payment':126 'x402':11,28,80,118 'x402 paypal' 'x402-payment-gated'","prices":[{"id":"9d219d9f-f7c3-43a2-99f7-b6f0e728c61e","listingId":"39b27be5-95ce-44ea-b1fd-0f64f7d492f7","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/73","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:12.501Z"}],"sources":[{"listingId":"39b27be5-95ce-44ea-b1fd-0f64f7d492f7","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/73","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:12.501Z","lastSeenAt":"2026-04-23T14:31:13.146Z"}],"details":{"listingId":"39b27be5-95ce-44ea-b1fd-0f64f7d492f7","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/73 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-signed-payment-header>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/73"},{"claim":"The platform advertises $0.02/request pricing across all endpoints with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/73"}],"useCases":["Triggering PayPal payment operations programmatically with per-call USDC billing","Integrating payment processing into agent workflows without traditional API key management","Exploring x402-gated financial service endpoints on the Base network"],"bestFor":["Developers experimenting with x402 payment-gated APIs","Agents that need pay-per-call access without subscription commitments","Users who want to interact with PayPal-related services using crypto micropayments"],"notFor":["Production payment processing requiring documented SLAs and schemas","Users who need detailed API documentation or OpenAPI specs before integrating","High-volume payment workflows where $0.02/call overhead matters"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.764Z"},"updatedAt":"2026-04-23T14:31:13.146Z"}}