{"id":"f5b6e308-4401-442d-9f54-30d1bf5312a9","shortId":"fRgnUX","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 at the path `/api/v1/paypal/payments/79`. 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 accepts POST requests and is priced at 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 \"exact\" scheme with no API keys or rate limits required — callers attach an X-PAYMENT header with a valid payment proof. The endpoint returns application/json responses. The payment timeout is 300 seconds.\n\nDocumentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no explanation of what the `/paypal/payments/79` resource actually does or what parameters it accepts. The endpoint is live (returns a proper 402 challenge), but without documentation it is unclear what payload to send or what response to expect beyond JSON.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-call","no-api-key","paypal-payments","json-response"],"categories":["finance","payments"],"synonyms":["PayPal payment API","x402 PayPal endpoint","USDC micropayment API","Base network payment","lowpaymentfee","pay-per-request API","crypto-gated API"],"warnings":["No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content","No request or response schema documented; unclear what POST body to send","The purpose of '/api/v1/paypal/payments/79' is unclear — the '79' may be a specific resource ID with unknown semantics","No OpenAPI or ai-plugin manifest found","Cannot verify what this endpoint actually does beyond returning JSON"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/79","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/79","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, but there is zero documentation on what the endpoint does, what request body it expects, or what it returns. No OpenAPI spec, no examples, and the site's docs/pricing/README pages are all blank beyond a wallet-connect prompt. The endpoint name suggests PayPal payment functionality but this is 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'/paypal/payments/79':195 '/request':17,34 '0.02':16,33,109 '000':98 '0x8335':103 '20':97 '2913':104 '300':153 '402':211 '6':114 'Base network payment' 'PayPal payment API' 'USDC micropayment API' 'accept':90,203 'access':43 'across':65 'actual':197 'ai/ml':70 'analyt':69 'api':42,63,126,165 'application/json':147 'attach':133 'base':9,26,85,99,106 'base-network' 'beyond':228 'broader':54 'call':4,21,62 'caller':132 'categori':66 'challeng':212 'connect':173 'content':179 'crypto-gated API' 'data':68 'decim':115 'doc':163 'document':155,188,215 'dozen':57 'endpoint':7,24,36,64,89,145,205 'equal':108 'exact':122 'expect':227 'explan':191 'extrem':160 'financ':72 'gate':77 'header':138 'infer':71 'infrastructur':74 'json':229 'json-response' 'key':127 'like':67 'limit':130 'live':207 'lowpaymentfee' 'lowpaymentfee.com':38 'made':118 'network':86 'no-api-key' 'offer':56 'openapi':183 'page':168 'paramet':201 'part':51 'path':47 'pay':2,19,60 'pay-per-cal':1,18,59 'pay-per-call' 'pay-per-request API' 'payload':220 'payment':6,23,81,116,137,142,150 'paypal':5,22 'paypal-payments' 'per':3,20,61,110 'platform':55 'post':91 'premium':41 'price':95,164 'prompt':175 'proof':143 'proper':210 'protocol':82 'provid':39 'rate':129 'readm':167 'render':170 'request':92,111 'request/response':186 'requir':131 'resourc':44,196 'respons':148,225 'return':146,208 'schema':187 'scheme':123 'second':154 'send':222 'settl':12,29 'site':158 'spars':161 'spec':184 'specif':88 'timeout':151 'unclear':218 'unit':100 'usdc':14,31,102,112 'usdc-settlement' 'use':113 'util':75 'valid':141 'via':10,27,119 'wallet':174 'without':214 'x':136 'x-payment':135 'x402':11,28,80,121 'x402 PayPal endpoint' 'x402-payment'","prices":[{"id":"e0780217-41ce-47fb-990c-3ac3ed5580d0","listingId":"f5b6e308-4401-442d-9f54-30d1bf5312a9","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/79","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:17.385Z"}],"sources":[{"listingId":"f5b6e308-4401-442d-9f54-30d1bf5312a9","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/79","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:17.385Z","lastSeenAt":"2026-04-23T14:01:28.617Z"}],"details":{"listingId":"f5b6e308-4401-442d-9f54-30d1bf5312a9","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/79 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\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/79"},{"claim":"The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/79"},{"claim":"Docs, pricing, API, and README pages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic PayPal payment processing via a crypto-gated endpoint","Agent-initiated payment operations without API key management","Integrating PayPal payment functionality into x402-compatible workflows"],"bestFor":["Developers wanting keyless, pay-per-call PayPal payment access","AI agents that can settle x402 payments in USDC on Base","Prototyping payment flows without subscription commitments"],"notFor":["Production payment systems requiring documented SLAs and schemas","Users who need detailed API documentation before integration","Non-crypto users who cannot settle USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.59Z"},"updatedAt":"2026-04-23T14:01:28.617Z"}}