{"id":"97da005a-f80f-4588-8fff-ac3a8742d6dd","shortId":"Q7RUzm","kind":"x402","title":"Pay-per-call PayPal payments API on Base via x402, $0.02/request in USDC.","tagline":"Pay-per-call PayPal payments API 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/19`. 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 probed accepts POST requests and charges a maximum of 20,000 base units of USDC (contract `0x8335…2913` on Base). Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the site's advertised flat pricing of $0.02/request across all endpoints. Payment is made via the x402 \"exact\" scheme, settling to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a 300-second timeout.\n\nThe platform advertises no API keys, no rate limits, and instant access. However, documentation is extremely thin — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the `/paypal/payments/19` endpoint actually returns or what input it expects. The endpoint name suggests PayPal payment processing functionality, but this cannot be confirmed from available material.","tags":[],"capabilities":["x402-payment-gated","usdc-base-network","pay-per-call","paypal-payments","post-method","no-api-key"],"categories":["finance","payments"],"synonyms":["paypal payment api","x402 paypal","crypto payment gateway","base network api","usdc micropayment","pay-per-request api","lowpaymentfee"],"warnings":["No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.","No OpenAPI or output schema describing request parameters or response format.","The actual functionality of /api/v1/paypal/payments/19 is unknown; the name suggests PayPal integration but this is unconfirmed.","The trailing '/19' in the path suggests a specific resource ID, which may limit the endpoint's general utility."],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/19","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/19","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is virtually no documentation: no OpenAPI schema, no request/response examples, no description of what the endpoint does beyond its URL path. The docs pages are empty. The purpose of '/paypal/payments/19' is 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'/paypal/payments/19':195 '/request':13,28,125 '0.02':12,27,112,124 '000':94 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':140 '0x8335':100 '20':93 '2913':101 '300':143 '6':107 'accept':85 'access':39,157 'across':126 'actual':197 'address':139 'advertis':120,148 'ai/ml':63 'analyt':62 'api':7,22,38,59,150,166 'avail':218 'base':9,24,79,95,103 'base network api' 'broader':50 'call':4,19,58 'cannot':214 'charg':89 'confirm':216 'connect':174 'consist':115 'content':180 'contract':99 'crypto':66 'crypto payment gateway' 'data':61 'decim':108 'descript':191 'doc':164 'document':159 'dozen':53 'endpoint':32,83,128,196,205 'exact':135 'exampl':188 'expect':203 'extrem':161 'financ':65 'flat':121 'function':211 'gate':71 'howev':158 'infer':64 'input':201 'instant':156 'key':151 'limit':154 'lowpaymentfee' 'lowpaymentfee.com':34 'made':131 'materi':219 'maximum':91 'name':206 'network':80 'no-api-key' 'offer':52 'openapi':184 'page':169 'part':47 'path':43 'pay':2,17,56 'pay-per-cal':1,16,55 'pay-per-call' 'pay-per-request api' 'payment':6,21,75,129,209 'paypal':5,20,208 'paypal payment api' 'paypal-payments' 'per':3,18,57,113 'platform':51,147 'post':86 'post-method' 'premium':37 'price':122,165 'probe':84 'process':210 'prompt':176 'protocol':76 'provid':35 'rate':153 'readm':168 'render':171 'request':87,114 'request/response':187 'resourc':40 'return':198 'schema':185 'scheme':136 'second':144 'servic':69 'settl':137 'sinc':104 'site':118 'span':60 'specif':82 'substant':179 'suggest':207 'thin':162 'timeout':145 'translat':110 'unit':96 'usdc':15,30,98,105 'usdc micropayment' 'usdc-base-network' 'use':106 'util':68 'via':10,25,72,132 'wallet':175 'x402':11,26,74,134 'x402 paypal' 'x402-payment-gated'","prices":[{"id":"096a4313-5803-4856-b028-49af0f304f83","listingId":"97da005a-f80f-4588-8fff-ac3a8742d6dd","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/19","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:10.659Z"}],"sources":[{"listingId":"97da005a-f80f-4588-8fff-ac3a8742d6dd","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/19","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:10.659Z","lastSeenAt":"2026-04-23T16:07:20.962Z"}],"details":{"listingId":"97da005a-f80f-4588-8fff-ac3a8742d6dd","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/19 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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/19"},{"claim":"The platform advertises $0.02/request flat pricing 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/19"}],"useCases":["Programmatic PayPal payment initiation or lookup via a crypto-settled API","Agent-driven payment workflows that settle in USDC on Base","Integrating PayPal payment data into Web3 applications"],"bestFor":["Developers wanting keyless, pay-per-call access to payment APIs","AI agents that can settle x402 payments in USDC on Base","Prototyping payment integrations without subscription commitments"],"notFor":["Production payment processing requiring documented SLAs and schemas","Users who need detailed API documentation or request/response contracts before integrating","Non-crypto users who cannot settle payments on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.869Z"},"updatedAt":"2026-04-23T16:07:20.962Z"}}