{"id":"c642eea8-c7e2-4899-8d89-7c1e507f6509","shortId":"E7LBY6","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/132` 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. No API keys are required; callers simply attach an X-PAYMENT header with a valid x402 payment proof. The maximum payment required per call is 20,000 base units of USDC (6 decimals), which equals $0.02. The payment timeout is 300 seconds.\n\nThe provider's landing page advertises no rate limits, no minimums, and instant access. However, the specific functionality behind `/api/v1/wire/132` is not documented — the description is simply \"Premium API Access\" with no further detail on what data or service it returns. Documentation pages (/docs, /api, /pricing, /README) all rendered only a \"Connect wallet\" prompt with no additional content. Without knowing what this particular endpoint actually does, callers should treat it as an opaque paid endpoint until more documentation surfaces.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","json-response","http-post"],"categories":["api","infrastructure"],"synonyms":["x402 api","pay per call api","usdc api access","base network api","micropayment api","lowpaymentfee","wire api"],"warnings":["The specific functionality of /api/v1/wire/132 is not documented — 'Premium API Access' is the only description available.","All documentation pages (/docs, /api, /pricing, /README) returned only a 'Connect wallet' prompt with no usable content.","No request body schema or response schema is available; callers cannot know what to send or what to expect back.","No OpenAPI or machine-readable API specification was found."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/132","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/132","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 USDC on Base), but the actual functionality behind /api/v1/wire/132 is completely undocumented. No OpenAPI schema, no request/response examples, and all doc pages return only 'Connect wallet'. The listing is effectively a 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'/api/v1/wire/132':47,169 '/docs':193 '/pricing':195 '/readme':196 '/request':13,28 '0.02':12,27,76,143 '000':134 '0x8335':89 '20':133 '2913':90 '300':148 '6':139 'accept':100 'access':7,22,38,163,179 'actual':214 'addit':206 'advertis':155 'ai':65 'analyt':64 'api':6,21,37,108,178 'application/json':106 'attach':114 'base':9,24,84,135 'base network api' 'base-network' 'behind':168 'broad':60 'call':4,19,131 'caller':112,216 'catalog':61 'connect':201 'content':207 'contract':88 'data':63,186 'decim':140 'descript':174 'detail':183 'document':172,191,227 'endpoint':32,52,99,213,224 'equal':142 'exact':95 'exact-pay':94 'financ':68 'function':167 'header':119 'host':58 'howev':164 'http':101 'http-post' 'infrastructur':71 'instant':162 'json-response' 'key':109 'know':209 'land':153 'learn':67 'limit':158 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':66 'mani':51 'maximum':127 'micropayment api' 'minimum':160 'network':85 'offer':53 'one':49 'opaqu':222 'page':154,192 'paid':223 'particular':212 'path':46 'pay':2,17 'pay per call api' 'pay-per-cal':1,16 'pay-per-request' 'payment':42,79,96,118,124,128,145 'per':3,18,77,130 'post':102 'premium':5,20,36,177 'price':74 'prompt':203 'proof':125 'protocol':43 'provid':35,56,151 'rate':157 'render':198 'request':78,103 'requir':111,129 'return':105,190 'scheme':97 'second':149 'servic':188 'settl':81 'simpli':113,176 'span':62 'specif':45,166 'surfac':228 'timeout':146 'treat':218 'unit':136 'usdc':15,30,87,138 'usdc api access' 'usdc-settlement' 'use':86 'util':72 'valid':122 'via':10,25,39 'wallet':202 'web3':69 'wire api' 'without':208 'x':117 'x-payment':116 'x402':11,26,41,93,123 'x402 api' 'x402-payment'","prices":[{"id":"a8efdabb-e2b0-4726-954b-1e1119d8d013","listingId":"c642eea8-c7e2-4899-8d89-7c1e507f6509","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/132","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:41.687Z"}],"sources":[{"listingId":"c642eea8-c7e2-4899-8d89-7c1e507f6509","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/132","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:41.687Z","lastSeenAt":"2026-04-22T05:31:49.756Z"}],"details":{"listingId":"c642eea8-c7e2-4899-8d89-7c1e507f6509","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/132 \\\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 requiring 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/wire/132"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/wire/132"},{"claim":"Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"Provider offers endpoints across data & analytics, AI & ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages render only 'Connect wallet' with no additional content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic access to a paid API endpoint without needing API keys or subscriptions","Agent-driven workflows that need to pay per call using on-chain USDC on Base","Testing x402 payment protocol integrations against a live endpoint"],"bestFor":["Developers experimenting with x402 payment flows","AI agents that can settle micropayments on Base","Users who want keyless, pay-as-you-go API access"],"notFor":["Users who need clear documentation on what the endpoint returns before paying","High-volume use cases where $0.02/request adds up without volume discounts","Anyone requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:31.462Z"},"updatedAt":"2026-04-22T05:31:49.756Z"}}