{"id":"d7d1bdd9-cf67-462e-93f7-cbb1fe99745e","shortId":"MmCT3y","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/33`. It is part of a broader platform that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all gated by the x402 payment protocol on the Base network.\n\nThe specific endpoint accepts HTTP POST requests and is priced at a maximum of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request. Payment is made via the x402 exact-amount scheme: callers attach an `X-PAYMENT` header containing a signed payment to the payTo address. No API keys or accounts are required; access is instant once payment is verified. The platform advertises no rate limits and no minimum commitments.\n\nDocumentation is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no additional technical content. There is no OpenAPI spec, no request/response schema beyond the x402 challenge's outputSchema stub, and no examples of what the endpoint actually returns. The endpoint name suggests PayPal payment processing, but without documentation it is unclear what input the POST body expects or what the response contains. Prospective users should test with a small payment to discover the actual behavior.","tags":[],"capabilities":["x402-payment-gated","usdc-base-network","pay-per-request","http-post","paypal-payments"],"categories":["finance","payments"],"synonyms":["paypal payment api","x402 paypal","crypto-gated payment endpoint","lowpaymentfee","base usdc api","pay-per-call payments","micropayment api"],"warnings":["No documentation available — all doc pages render only 'Connect wallet'","No OpenAPI or request/response schema provided; actual endpoint behavior is unknown","Endpoint name suggests PayPal payment processing but no details confirm what it does","No examples of expected POST body or response format"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/33","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/33","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 402 challenge, confirming it is operational. However, documentation is effectively nonexistent — every doc page shows only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, no examples, and the endpoint's actual functionality (what it does with PayPal payments) is entirely opaque. This is a stub-level 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'/api/v1/paypal/payments/33':44 '/docs':166 '/pricing':167 '/readme':170 '/request':13,28 '0.02':12,27,109 '000':98 '0x8335':103 '20':97 '2913':104 'accept':86 'access':39,144 'account':141 'actual':206,243 'addit':181 'address':136 'advertis':153 'ai/ml':65 'amount':120 'analyt':64 'api':38,60,138 'attach':123 'base':9,24,81,99,106 'base usdc api' 'behavior':244 'beyond':192 'bodi':225 'broader':50 'call':4,19,59 'caller':122 'challeng':195 'commit':160 'connect':176 'contain':129,231 'content':183 'crypto-gated payment endpoint' 'data':63,68 'discov':241 'document':161,217 'dozen':54 'endpoint':7,22,32,61,85,205,209 'equal':108 'exact':119 'exact-amount':118 'exampl':201 'expect':226 'extrem':163 'finance/web3':67 'gate':73 'header':128 'http':87 'http-post' 'infer':66 'infrastructur':70 'input':222 'instant':146 'key':139 'limit':156 'lowpaymentfee' 'lowpaymentfee.com':34 'made':114 'maximum':95 'micropayment api' 'minimum':159 'name':210 'network':82 'offer':53 'openapi':187 'outputschema':197 'page':171 'part':47 'path':43 'pay':2,17,57 'pay-per-cal':1,16,56 'pay-per-call payments' 'pay-per-request' 'payment':6,21,77,112,127,132,148,213,239 'paypal':5,20,212 'paypal payment api' 'paypal-payments' 'payto':135 'per':3,18,58,110 'platform':51,152 'post':88,224 'premium':37 'price':92 'process':214 'prompt':178 'prospect':232 'protocol':78 'provid':35 'rate':155 'render':173 'request':89,111 'request/response':190 'requir':143 'resourc':40 'respons':230 'return':207 'schema':191 'scheme':121 'sign':131 'small':238 'span':62 'spars':164 'spec':188 'specif':84 'stub':198 'suggest':211 'technic':182 'test':235 'unclear':220 'unit':100 'usdc':15,30,102 'usdc-base-network' 'user':233 'util':71 'verifi':150 'via':10,25,115 'wallet':177 'without':216 'x':126 'x-payment':125 'x402':11,26,76,117,194 'x402 paypal' 'x402-payment-gated'","prices":[{"id":"2d6f691d-c5d6-44f2-83a9-b5b01c0d7d1c","listingId":"d7d1bdd9-cf67-462e-93f7-cbb1fe99745e","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/33","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:07.099Z"}],"sources":[{"listingId":"d7d1bdd9-cf67-462e-93f7-cbb1fe99745e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/33","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:07.099Z","lastSeenAt":"2026-04-23T16:07:20.824Z"}],"details":{"listingId":"d7d1bdd9-cf67-462e-93f7-cbb1fe99745e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/33 \\\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":"Endpoint returns x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/33"},{"claim":"Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/33"}],"useCases":["Programmatically initiate or query PayPal payment information via a single POST call","Integrate low-cost payment processing into agent workflows without API key management","Test x402-gated endpoint patterns for pay-per-use API monetization"],"bestFor":["Developers exploring x402 payment-gated APIs on Base","Agents needing keyless, pay-per-call access to payment-related endpoints","Prototyping micropayment-based API consumption"],"notFor":["Production payment processing requiring documented SLAs and schemas","Users who need detailed API documentation before integrating","High-volume batch payment operations where per-call fees add up"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.991Z"},"updatedAt":"2026-04-23T16:07:20.824Z"}}