{"id":"db217c5f-daff-457f-9b98-f4cfc012773b","shortId":"RqjaZk","kind":"x402","title":"Pay-per-call PayPal payments endpoint on Base via x402, settling in USDC at $0.02/request.","tagline":"Pay-per-call PayPal payments endpoint on Base via x402, settling in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides a PayPal payments API accessible via the x402 payment protocol. The URL path (`/api/v1/paypal/payments/75`) suggests it handles PayPal payment operations, though the exact request/response schema is not documented in the available crawl material. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).\n\nThe provider, lowpaymentfee.com, hosts a broad catalog of x402-gated API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced uniformly at $0.02 per call. The platform advertises no API keys, no rate limits, and instant access. However, documentation is extremely thin: the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail.\n\nBecause there is no OpenAPI spec, no request/response schema beyond the x402 challenge's `outputSchema` stub, and no documentation describing what parameters this PayPal payments endpoint accepts or what it returns, the actual functionality remains unclear. The endpoint is confirmed live (returns a valid x402 402 challenge), but prospective users should test carefully before relying on it in production.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","paypal-payments","pay-per-request"],"categories":["finance","payments"],"synonyms":["PayPal payment API","x402 PayPal","crypto-gated PayPal","USDC pay-per-call","lowpaymentfee PayPal","Base network payment endpoint"],"warnings":["No request or response schema available — actual endpoint behavior is unknown","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The endpoint path suggests PayPal payment functionality but this is unverified — no docs describe it","No OpenAPI specification or AI plugin manifest found"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/75","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/75","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 PayPal payments endpoint actually does, what parameters it accepts, or what it returns. No OpenAPI spec, no examples, and all doc pages are empty. The listing is essentially a 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'/request':17,34 '0.02':16,33,89,126 '000':93 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':83 '20':92 '402':210 '6':97 'Base network payment endpoint' 'PayPal payment API' 'USDC pay-per-call' 'accept':191 'access':44,140 'actual':197 'advertis':131 'ai/ml':115 'analyt':114 'api':43,110,133,148 'avail':70 'base':9,26,78,94 'base-network' 'beyond':174 'broad':104 'call':4,21,128 'care':217 'catalog':105 'challeng':177,211 'confirm':204 'connect':157 'contract':82 'cost':87 'crawl':71 'crypto':118 'crypto-gated PayPal' 'data':113 'decim':98 'describ':184 'detail':164 'doc':147 'document':67,142,183 'endpoint':7,24,36,111,190,202 'exact':62 'extrem':144 'financ':117 'function':198 'gate':109 'handl':56 'host':102 'howev':141 'infer':116 'instant':139 'key':134 'limit':137 'live':205 'lowpaymentfee PayPal' 'lowpaymentfee.com':38,101 'materi':72 'maximum':86 'network':79 'openapi':169 'oper':59 'outputschema':179 'page':152 'paramet':186 'path':52 'pay':2,19 'pay-per-cal':1,18 'pay-per-request' 'payment':6,23,42,48,58,73,189 'paypal':5,22,41,57,188 'paypal-payments' 'per':3,20,90,127 'platform':130 'price':123,149 'product':223 'prompt':159 'prospect':213 'protocol':49 'provid':39,100 'rate':136 'readm':151 'reli':219 'remain':199 'render':154 'request':91 'request/response':63,172 'return':195,206 'schema':64,173 'servic':121 'settl':12,29,75 'span':112 'spec':170 'stub':180 'suggest':54 'technic':163 'test':216 'thin':145 'though':60 'unclear':200 'uniform':124 'unit':95 'url':51 'usdc':14,31,81 'usdc-settlement' 'use':80 'user':214 'util':120 'valid':208 'via':10,27,45 'wallet':158 'x402':11,28,47,108,176,209 'x402 PayPal' 'x402-gated':107 'x402-payment'","prices":[{"id":"f31885ae-0400-4745-bfbe-6574d0be2814","listingId":"db217c5f-daff-457f-9b98-f4cfc012773b","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/75","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:14.922Z"}],"sources":[{"listingId":"db217c5f-daff-457f-9b98-f4cfc012773b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/75","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:14.922Z","lastSeenAt":"2026-04-23T14:31:13.220Z"}],"details":{"listingId":"db217c5f-daff-457f-9b98-f4cfc012773b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/75 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 402 challenge with USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/75"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/75"},{"claim":"Platform advertises $0.02/request, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/75"},{"claim":"Documentation pages render only 'Connect wallet' with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatically initiate or process PayPal payments without traditional API keys","Agent-driven payment workflows that settle per-call costs in USDC on Base","Integrating PayPal payment functionality into crypto-native applications"],"bestFor":["Developers wanting keyless, pay-per-use PayPal payment access","AI agents that can settle x402 micropayments on Base","Prototyping payment flows without subscription commitments"],"notFor":["Production payment processing requiring well-documented, audited APIs","Users who need detailed request/response schemas before integration","High-volume use cases where $0.02/request adds up significantly"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.752Z"},"updatedAt":"2026-04-23T14:31:13.220Z"}}