{"id":"f0e5750c-c851-44dc-8792-dd6be095e8e9","shortId":"Vp7cM9","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/90`) suggests it handles PayPal payment operations, though the exact request/response schema is not documented in the available crawl material.\n\nThe endpoint is live and returns a valid x402 challenge. It accepts POST requests and settles payments on the Base network using USDC (contract `0x8335...2913`). The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). This is consistent with the site's advertised flat pricing of $0.02 per request across all endpoints. The provider advertises no API keys, no rate limits, and instant access.\n\nThe provider site (lowpaymentfee.com) hosts a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance/crypto, and infrastructure utilities — all at the same $0.02/request price point. However, documentation is essentially absent: the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. Without request/response schemas or usage examples, integrating this endpoint requires experimentation or prior knowledge of the expected PayPal payments payload format.","tags":[],"capabilities":["x402-payment","paypal-payments","usdc-settlement","base-network","pay-per-call"],"categories":["finance","payments"],"synonyms":["PayPal payment API","x402 PayPal","crypto-gated PayPal","USDC payment endpoint","lowpaymentfee PayPal","pay-per-request PayPal"],"warnings":["No API documentation available — /docs, /api, /pricing, and /README all show only 'Connect wallet'","No request or response schema provided; the exact PayPal operation and required payload are unknown","The endpoint path suggests PayPal integration but no details confirm what payment operation is performed or what 'payments/90' refers to","Provider hosts a large catalog of diverse endpoints all at $0.02 — unclear if all are fully functional"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/90","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/90","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 zero documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty. The endpoint's actual functionality (what PayPal operation it performs, what inputs it expects) is entirely 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'/api/v1/paypal/payments/90':53 '/docs':184 '/pricing':186 '/readme':188 '/request':17,34,175 '0.02':16,33,114,130,174 '000':107 '0x8335':97 '20':106 '2913':98 '6':117 'PayPal payment API' 'USDC payment endpoint' 'absent':182 'accept':84 'access':44,147 'across':133 'advertis':126,138 'ai/ml':164 'amount':101 'analyt':163 'api':43,140,160 'avail':70 'base':9,26,92,108 'base-network' 'broad':154 'call':4,21,104 'catalog':155 'challeng':82 'connect':194 'consist':121 'contract':96 'crawl':71 'crypto-gated PayPal' 'data':162 'decim':118 'detail':201 'document':67,179 'endpoint':7,24,36,74,135,210 'equal':113 'essenti':181 'exact':62 'exampl':207 'expect':218 'experiment':212 'finance/crypto':166 'flat':127 'format':222 'gate':159 'handl':56 'host':152 'howev':178 'infer':165 'infrastructur':168 'instant':146 'integr':208 'key':141 'knowledg':215 'limit':144 'live':76 'lowpaymentfee PayPal' 'lowpaymentfee.com':38,151 'materi':72 'maximum':100 'network':93 'oper':59 'page':189 'path':52 'pay':2,19 'pay-per-cal':1,18 'pay-per-call' 'pay-per-request PayPal' 'payload':221 'payment':6,23,42,48,58,89,220 'paypal':5,22,41,57,219 'paypal-payments' 'per':3,20,103,131 'point':177 'post':85 'price':128,176 'prior':214 'prompt':196 'protocol':49 'provid':39,137,149 'rate':143 'render':191 'request':86,132 'request/response':63,203 'requir':102,211 'return':78 'schema':64,204 'settl':12,29,88 'site':124,150 'span':161 'suggest':54 'technic':200 'though':60 'unit':109 'url':51 'usag':206 'usdc':14,31,95,111,115 'usdc-settlement' 'use':94,116 'util':169 'valid':80 'via':10,27,45 'wallet':195 'without':202 'x402':11,28,47,81,158 'x402 PayPal' 'x402-gated':157 'x402-payment'","prices":[{"id":"b6e354ab-9ffe-400a-84c6-1d6d207c549c","listingId":"f0e5750c-c851-44dc-8792-dd6be095e8e9","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/90","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:13.080Z"}],"sources":[{"listingId":"f0e5750c-c851-44dc-8792-dd6be095e8e9","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/90","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:13.080Z","lastSeenAt":"2026-04-23T14:01:28.433Z"}],"details":{"listingId":"f0e5750c-c851-44dc-8792-dd6be095e8e9","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/90 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\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 challenge with maxAmountRequired of 20000 base units USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/90"},{"claim":"Site 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/90"}],"useCases":["Programmatically initiating or processing PayPal payments without API key management","Agent-driven PayPal payment workflows settled in USDC on Base","Integrating PayPal payment functionality into x402-compatible agent pipelines"],"bestFor":["Developers wanting keyless, pay-per-call PayPal payment access","AI agents that can settle micropayments in USDC on Base","Prototyping PayPal integrations without account setup"],"notFor":["Production PayPal integrations requiring documented, stable schemas and SLAs","Users who need detailed API documentation or official PayPal SDK support"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:04.703Z"},"updatedAt":"2026-04-23T14:01:28.433Z"}}