{"id":"f4f71eae-e8b9-4c61-a4f3-2554c506df97","shortId":"TgeKZJ","kind":"x402","title":"x402-gated premium API access on Base, paid per-call in USDC at $0.02/request.","tagline":"x402-gated premium API access on Base, paid per-call in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" behind an x402 paywall, settling payments in USDC on the Base network. The specific resource path `/api/v1/stripe/charges/176` suggests a Stripe-related charges endpoint, though the exact functionality behind this particular route is not documented beyond the generic \"Premium API Access\" label.\n\nThe provider's landing page advertises a broad suite of APIs spanning data & analytics (metrics, reports, data export, insights), AI & machine learning (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and instant access via x402 payment on Base.\n\nThe probed endpoint returns a valid x402 challenge with `maxAmountRequired` of 20000 base units of USDC (6 decimals), which equals $0.02 per call. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the exact payment scheme. No OpenAPI schema, detailed documentation, or example responses were found — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional content.","tags":[],"capabilities":["x402-payment","usdc-base","per-call-pricing","premium-api-access","stripe-charges"],"categories":["finance","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC API","Base network API","lowpaymentfee","stripe charges API","micropayment API"],"warnings":["No API documentation available — docs, pricing, and API pages render only 'Connect wallet' with no content","No request or response schema provided; the actual functionality behind /api/v1/stripe/charges/176 is undocumented","The endpoint path references 'stripe/charges' but the x402 challenge description is generic 'Premium API Access' — actual behavior is unknown","The provider lists many API categories on the landing page but none have documented schemas or examples"],"endpointUrl":"https://lowpaymentfee.com/api/v1/stripe/charges/176","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/stripe/charges/176","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and the docs/pricing/API pages are all empty beyond a wallet-connect prompt. The specific purpose of this particular endpoint (stripe/charges/176) is 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'/request':17,34 '0.02':16,33,135,173 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':181 '20000':164 '6':169 'Base network API' 'USDC API' 'access':6,23,42,83,147 'addit':212 'address':180 'advertis':90 'ai':104 'analysi':108 'analyt':98 'api':5,22,41,82,95,140,201 'base':8,25,53,152,165 'behind':43,71 'beyond':78 'broad':92 'call':12,29,175 'challeng':160 'charg':65 'classif':111 'connect':207 'content':213 'convers':128 'data':97,101 'decim':170 'detail':190 'doc':198 'document':77,191 'embed':112 'endpoint':36,66,131,155 'equal':172 'estim':122 'exact':69,184 'exampl':193 'exchang':117 'export':102 'feed':116 'financ':113 'found':196 'function':70 'gas':121 'gate':3,20 'generat':129 'generic':80 'geocod':126 'infrastructur':124 'insight':103 'instant':146 'key':141 'label':84 'land':88 'learn':106 'limit':144 'list':133 'lowpaymentfee' 'lowpaymentfee.com':38 'machin':105 'maxamountrequir':162 'metric':99 'micropayment API' 'network':54 'openapi':188 'page':89,202 'paid':9,26 'particular':73 'path':58 'pay-per-call API' 'payment':48,150,176,185 'paywal':46 'per':11,28,136,174 'per-cal':10,27 'per-call-pricing' 'premium':4,21,40,81 'premium-api-access' 'price':115,199 'probe':154 'prompt':209 'provid':39,86 'quot':120 'rate':118,143 'relat':64 'render':204 'report':100 'request':137 'resourc':57 'respons':194 'return':156 'rout':74 'schema':189 'scheme':186 'sent':178 'sentiment':107 'settl':47 'span':96 'specif':56 'stripe':63 'stripe charges API' 'stripe-charges' 'stripe-rel':62 'suggest':60 'suit':93 'summar':110 'text':109 'though':67 'token':119 'unit':166 'usdc':14,31,50,168 'usdc-base' 'use':182 'util':125 'valid':127,158 'via':148 'wallet':208 'web3':114 'x402':2,19,45,149,159 'x402 API' 'x402-gated':1,18 'x402-payment'","prices":[{"id":"8ab68a36-6bcc-4e7a-aa11-7c12d56ec837","listingId":"f4f71eae-e8b9-4c61-a4f3-2554c506df97","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/stripe/charges/176","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:54:07.095Z"}],"sources":[{"listingId":"f4f71eae-e8b9-4c61-a4f3-2554c506df97","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/stripe/charges/176","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:54:07.095Z","lastSeenAt":"2026-04-25T23:32:33.226Z"}],"details":{"listingId":"f4f71eae-e8b9-4c61-a4f3-2554c506df97","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/176 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","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/stripe/charges/176"},{"claim":"All endpoints are listed at $0.02 per request with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The provider advertises APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/stripe/charges/176"}],"useCases":["Programmatic access to a Stripe charges endpoint via x402 micropayment","Agent-driven API calls settled in USDC on Base without API keys","Pay-per-use access to premium data or financial services"],"bestFor":["Agents or scripts that need keyless, pay-per-call API access","Users who prefer crypto micropayments over traditional API subscriptions","Developers experimenting with x402 protocol integrations"],"notFor":["Users who need detailed API documentation or response schemas before purchasing","High-volume consumers who need bulk pricing or rate-limit guarantees","Anyone requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:56.37Z"},"updatedAt":"2026-04-25T23:32:33.226Z"}}