{"id":"19159442-630f-4e15-8cd1-f44354da6606","shortId":"6QRVXB","kind":"x402","title":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The specific path `/api/v1/wire/89` is one of many endpoints offered by the provider, which hosts a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.\n\nPayment is settled on the Base network using USDC (contract 0x8335…2913) through the x402 exact-payment scheme. The endpoint accepts HTTP POST requests and returns application/json. There are no API keys required, no rate limits advertised, and no minimum commitments — callers simply attach an X-PAYMENT header with a valid x402 payment proof for each request.\n\nThe specific functionality behind `/api/v1/wire/89` is not documented beyond the label \"Premium API Access.\" The provider's landing page lists 16 distinct endpoints across four categories (analytics/metrics, AI inference, finance/crypto data, and utility services), but this particular wire endpoint does not map to any of those named APIs. Without further documentation or example request/response payloads, the exact data or service returned by this endpoint remains unclear. The docs, pricing, and README pages all render only a wallet-connect prompt with no additional technical content.","tags":[],"capabilities":["x402-payment","usdc-base-network","pay-per-request","http-post","json-response"],"categories":["api","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment endpoint","Base network API","lowpaymentfee","premium API access","crypto-paid API"],"warnings":["The specific functionality of /api/v1/wire/89 is not documented — 'Premium API Access' is the only description available.","No request body schema or response schema is provided; callers cannot know what to send or what to expect.","All documentation pages (docs, pricing, README, api) render only a wallet-connect prompt with no technical content.","The endpoint path does not correspond to any of the named APIs listed on the provider's landing page."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/89","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/wire/89","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 per request in USDC on Base). However, there is no documentation, no request/response schema, no examples, and the specific functionality of /api/v1/wire/89 is entirely undocumented. The docs/pricing/README pages are empty beyond a wallet-connect prompt. This is effectively a stub 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'/request':13,28 '0.02':12,27,76 '0x8335':89 '16':158 '2913':90 'Base network API' 'USDC micropayment endpoint' 'accept':100 'access':7,22,38,151 'across':161 'addit':220 'advertis':116 'ai':65,165 'analyt':64 'analytics/metrics':164 'api':6,21,37,110,150,185 'application/json':106 'attach':123 'base':9,24,84 'behind':141 'beyond':146 'broad':60 'call':4,19 'caller':121 'catalog':61 'categori':163 'commit':120 'connect':216 'content':222 'contract':88 'crypto-paid API' 'data':63,168,195 'distinct':159 'doc':205 'document':145,188 'endpoint':32,52,99,160,176,201 'exact':95,194 'exact-pay':94 'exampl':190 'financ':68 'finance/crypto':167 'four':162 'function':140 'header':128 'host':58 'http':101 'http-post' 'infer':166 'infrastructur':71 'json-response' 'key':111 'label':148 'land':155 'learn':67 'limit':115 'list':157 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':66 'mani':51 'map':179 'minimum':119 'name':184 'network':85 'offer':53 'one':49 'page':156,209 'particular':174 'path':46 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payload':192 'payment':42,79,96,127,133 'per':3,18,77 'post':102 'premium':5,20,36,149 'premium API access' 'price':74,206 'prompt':217 'proof':134 'protocol':43 'provid':35,56,153 'rate':114 'readm':208 'remain':202 'render':211 'request':78,103,137 'request/response':191 'requir':112 'return':105,198 'scheme':97 'servic':171,197 'settl':81 'simpli':122 'span':62 'specif':45,139 'technic':221 'unclear':203 'usdc':15,30,87 'usdc-base-network' 'use':86 'util':72,170 'valid':131 'via':10,25,39 'wallet':215 'wallet-connect':214 'web3':69 'wire':175 'without':186 'x':126 'x-payment':125 'x402':11,26,41,93,132 'x402 API' 'x402-payment'","prices":[{"id":"ae1d16de-f08d-4db7-94e3-a45c7318157e","listingId":"19159442-630f-4e15-8cd1-f44354da6606","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/wire/89","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:29:16.775Z"}],"sources":[{"listingId":"19159442-630f-4e15-8cd1-f44354da6606","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/89","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:29:16.775Z","lastSeenAt":"2026-04-22T04:02:16.714Z"}],"details":{"listingId":"19159442-630f-4e15-8cd1-f44354da6606","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/89 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 challenge advertising USDC on Base network at maxAmountRequired 20000 (= $0.02)","source_url":"https://lowpaymentfee.com/api/v1/wire/89"},{"claim":"Provider lists 16 endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories, all at $0.02/request","source_url":"https://lowpaymentfee.com"},{"claim":"Provider advertises no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/89"}],"useCases":["Accessing premium data or services with per-request USDC micropayments","Agent-driven API consumption without API key provisioning","Programmatic pay-as-you-go access to undocumented premium content"],"bestFor":["Developers or agents wanting keyless, pay-per-call API access","x402-compatible clients on the Base network","Low-friction micropayment API consumption"],"notFor":["Users needing detailed API documentation or schemas before purchasing","High-volume use cases where per-request pricing may add up without bulk discounts","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:29.751Z"},"updatedAt":"2026-04-22T04:02:16.714Z"}}