{"id":"68088ef2-4cb4-4a2a-9aa9-39285b51833d","shortId":"6U7Aq2","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\" PayPal payments resource, accessible via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a variety of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform are priced at $0.02 per request, settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/paypal/payments/21` appears to be a PayPal payments-related API call. However, the crawled documentation is extremely sparse — the docs, API, pricing, and README pages all resolve to a \"Connect wallet\" prompt with no further detail. There is no OpenAPI schema, no request/response examples, and no description of what this particular endpoint accepts or returns beyond the generic \"Premium API Access\" label. The x402 challenge confirms the endpoint is live and accepts POST requests, requiring up to 20,000 base units of USDC (i.e., $0.02) per call, paid to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base.\n\nWithout documentation on the expected POST body or the response format, callers will need to experiment or contact the provider to understand the actual functionality. The platform advertises no API keys, no rate limits, and instant access, but these claims cannot be independently verified from the available material.","tags":[],"capabilities":["x402-payment","paypal-payments","usdc-settlement","base-network","pay-per-call","no-api-key"],"categories":["finance","payments"],"synonyms":["PayPal payment API","x402 PayPal","crypto-paid PayPal","USDC payment endpoint","lowpaymentfee PayPal","Base network payment API"],"warnings":["No OpenAPI schema or documentation available — endpoint functionality is unknown beyond the generic 'Premium API Access' label","All documentation pages (docs, API, pricing, README) resolve to a 'Connect wallet' prompt with no content","The relationship between this endpoint and actual PayPal payment processing is unclear — it may not interact with PayPal at all despite the URL path","No request body or response format documented; callers must experiment"],"endpointUrl":"https://lowpaymentfee.com/api/v1/paypal/payments/21","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/21","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no schema, no request/response examples, and the actual functionality behind 'Premium API Access' for a PayPal payments path is entirely opaque. This is effectively a stub 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'/request':13,28 '0.02':12,27,88,185 '000':179 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':191 '20':178 'Base network payment API' 'PayPal payment API' 'USDC payment endpoint' 'accept':153,172 'access':39,43,161,230 'actual':217 'address':190 'advertis':221 'ai/ml':73 'analyt':72 'api':38,69,110,121,160,223 'appear':102 'avail':240 'base':9,24,96,180,193 'base-network' 'beyond':156 'bodi':200 'call':4,19,68,111,187 'caller':205 'cannot':234 'challeng':165 'claim':233 'confirm':166 'connect':130 'contact':211 'crawl':114 'crypto':76 'crypto-paid PayPal' 'data':71 'descript':147 'detail':136 'doc':120 'document':115,195 'endpoint':7,22,32,54,81,100,152,168 'exampl':144 'expect':198 'experi':209 'extrem':117 'financ':75 'format':204 'function':218 'generic':158 'host':61 'howev':112 'i.e':184 'independ':236 'infer':74 'instant':229 'key':224 'label':162 'limit':227 'live':170 'lowpaymentfee PayPal' 'lowpaymentfee.com':34,58 'mani':53 'materi':241 'need':207 'network':97 'no-api-key' 'offer':55 'one':51 'openapi':140 'page':125 'paid':188 'particular':151 'pay':2,17,66 'pay-per-cal':1,16,65 'pay-per-call' 'payment':6,21,41,47,108 'payments-rel':107 'paypal':5,20,40,106 'paypal-payments' 'per':3,18,67,89,186 'platform':59,84,220 'post':173,199 'premium':37,159 'price':86,122 'prompt':132 'protocol':48 'provid':35,213 'rate':226 'readm':124 'relat':109 'request':90,174 'request/response':143 'requir':175 'resolv':127 'resourc':42 'respons':203 'return':155 'schema':141 'servic':79 'settl':91 'span':70 'spars':118 'specif':99 'understand':215 'unit':181 'usdc':15,30,93,183 'usdc-settlement' 'util':78 'varieti':63 'verifi':237 'via':10,25,44 'wallet':131 'without':194 'x402':11,26,46,164 'x402 PayPal' 'x402-payment'","prices":[{"id":"806c9c4d-7efb-4e82-b770-ee29f2fe710c","listingId":"68088ef2-4cb4-4a2a-9aa9-39285b51833d","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/21","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:51:01.130Z"}],"sources":[{"listingId":"68088ef2-4cb4-4a2a-9aa9-39285b51833d","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/paypal/payments/21","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:51:01.130Z","lastSeenAt":"2026-04-23T17:31:52.443Z"}],"details":{"listingId":"68088ef2-4cb4-4a2a-9aa9-39285b51833d","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/paypal/payments/21 \\\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":"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/21"},{"claim":"All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/paypal/payments/21"}],"useCases":["Programmatically initiating or querying PayPal payments via a pay-per-call model","Integrating PayPal payment functionality into AI agent workflows without API key management","Making one-off PayPal payment requests settled in USDC on Base"],"bestFor":["Developers wanting keyless, pay-per-use PayPal payment API access","AI agents that can settle micro-payments in USDC on Base","Prototyping payment integrations without subscription commitments"],"notFor":["Production systems requiring well-documented, stable APIs with SLAs","Users who need detailed PayPal payment management (refunds, disputes, etc.) — functionality is unclear","Anyone unable to pay in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:05.347Z"},"updatedAt":"2026-04-23T17:31:52.443Z"}}