{"id":"273eec16-a3c5-438f-b83a-203d6eaa4ffb","shortId":"8xLP8t","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 endpoint `/api/v1/wire/179` is one of many endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, payable in USDC on the Base network with no API keys, rate limits, or commitments required.\n\nThe x402 challenge confirms the endpoint is live and accepts POST requests. Payment is settled on-chain using USDC (contract 0x8335…2913 on Base) with a maximum amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The payment timeout is 300 seconds. The endpoint returns application/json responses.\n\nHowever, the specific functionality behind `/api/v1/wire/179` is not documented — the title is simply \"Premium API Access\" with no further description of what data or service it returns. The platform's docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no additional technical documentation, OpenAPI schema, or example requests/responses. Without knowing what this particular wire endpoint does, agents should treat it as an opaque paid endpoint until more documentation becomes available.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","json-response","no-api-key"],"categories":["api","infrastructure"],"synonyms":["lowpaymentfee","wire API","x402 API","USDC pay-per-call","Base network API","micropayment API","premium API"],"warnings":["The specific purpose and input/output schema of /api/v1/wire/179 are unknown — 'Premium API Access' is the only description provided.","All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no technical content.","No OpenAPI spec or example payloads are available for this endpoint.","The platform lists many endpoint categories (AI, finance, analytics, etc.) but it is unclear which, if any, are fully functional behind the paywall."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/179","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/179","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 the specific functionality of /api/v1/wire/179 is completely undocumented. No OpenAPI schema, no example requests or responses, and the docs/pricing/API pages are all blank beyond a wallet-connect prompt. This is effectively a stub 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'/request':13,28 '0.02':12,27,79,133 '000':129 '0x8335':119 '20':128 '2913':120 '300':143 '6':137 'Base network API' 'USDC pay-per-call' 'accept':107 'access':7,22,38,165 'addit':194 'agent':210 'ai':63 'amount':126 'analyt':62 'api':6,21,37,91,164,183 'application/json':148 'avail':223 'base':9,24,87,122,130 'base-network' 'becom':222 'behind':154 'call':4,19 'categori':59 'chain':115 'challeng':100 'commit':96 'confirm':101 'connect':189 'contract':118 'data':61,172 'decim':138 'descript':169 'doc':180 'document':158,196,221 'endpoint':32,46,52,72,103,146,208,218 'exampl':200 'financ':66 'function':153 'given':134 'howev':150 'i.e':132 'includ':60 'infrastructur':69 'json-response' 'key':92 'know':203 'learn':65 'limit':94 'live':105 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':64 'mani':51 'maximum':125 'micropayment API' 'network':88 'no-api-key' 'offer':53 'on-chain':113 'one':49 'opaqu':216 'openapi':197 'page':184 'paid':217 'particular':206 'pay':2,17 'pay-per-cal':1,16 'pay-per-request' 'payabl':82 'payment':42,110,140 'per':3,18,80 'platform':56,75,178 'post':108 'premium':5,20,36,163 'premium API' 'price':77,181 'prompt':191 'protocol':43 'provid':35 'rate':93 'render':186 'request':81,109 'requests/responses':201 'requir':97 'respons':149 'return':147,176 'schema':198 'second':144 'servic':174 'settl':112 'simpli':162 'span':58 'specif':45,152 'technic':195 'timeout':141 'titl':160 'treat':212 'unit':131 'usdc':15,30,84,117,135 'usdc-settlement' 'use':116 'util':70 'via':10,25,39 'wallet':190 'web3':67 'wire':207 'wire API' 'without':202 'x402':11,26,41,99 'x402 API' 'x402-payment'","prices":[{"id":"229913ee-74f3-46e8-9a0a-0ee57c33e123","listingId":"273eec16-a3c5-438f-b83a-203d6eaa4ffb","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/179","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:42.309Z"}],"sources":[{"listingId":"273eec16-a3c5-438f-b83a-203d6eaa4ffb","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/179","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:42.309Z","lastSeenAt":"2026-04-22T05:31:49.791Z"}],"details":{"listingId":"273eec16-a3c5-438f-b83a-203d6eaa4ffb","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/179 \\\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":"Endpoint returns HTTP 402 with x402 challenge, confirming it is live on Base network with USDC payment","source_url":"https://lowpaymentfee.com/api/v1/wire/179"},{"claim":"All endpoints priced at $0.02/request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/179"},{"claim":"maxAmountRequired is 20000 base units = $0.02 (USDC has 6 decimals)","source_url":"https://lowpaymentfee.com/api/v1/wire/179"}],"useCases":["Paying per-call for API access without subscription or API key management","Programmatic agent-driven access to paid endpoints using on-chain USDC","Testing x402 payment protocol integrations on Base"],"bestFor":["Developers or agents wanting zero-signup, pay-per-use API access","x402 protocol experimentation on Base","Scenarios where no rate limits or API keys are desired"],"notFor":["Users who need detailed documentation or guaranteed SLAs before calling","Use cases requiring known, well-documented endpoint behavior — this specific endpoint's function is undocumented"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:31.443Z"},"updatedAt":"2026-04-22T05:31:49.791Z"}}