{"id":"5ab7f428-9edb-4b40-9c30-31ed232a861e","shortId":"kv2EnC","kind":"x402","title":"Pay-per-request ACH endpoint on Base via x402 — $0.02/call in USDC, no API keys required.","tagline":"Pay-per-request ACH endpoint on Base via x402 — $0.02/call in USDC, no API keys required.","description":"This endpoint at `/api/v1/ach/182` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints use the x402 protocol on the Base network, accepting USDC payments with no API keys, no rate limits, and no subscriptions — just a per-call micropayment.\n\nThe specific endpoint `/api/v1/ach/182` is listed under the generic title \"Premium API Access.\" The platform does not provide documentation explaining what this particular route returns or what input it expects. The path segment \"ach/182\" suggests it may relate to ACH (Automated Clearing House) banking data or payment processing, but this is speculative — no schema, example request, or example response is available from the crawled material. The endpoint is confirmed live: it returns a valid x402 challenge (HTTP 402) requesting up to 20,000 base units of USDC (0.02 USD) on the Base network.\n\nThe broader lowpaymentfee.com platform advertises uniform $0.02 pricing across all endpoints, with payment settled on-chain via USDC on Base to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The site's docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical documentation, making it impossible to verify the actual functionality behind this or any other endpoint on the platform.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","no-api-key","post-method"],"categories":["finance"],"synonyms":["ACH API","payment processing API","x402 micropayment","lowpaymentfee","Base USDC API","pay-per-call API","automated clearing house"],"warnings":["No documentation available — docs, pricing, and API pages all render only 'Connect wallet' with no content.","The specific functionality of /api/v1/ach/182 is unknown; 'Premium API Access' is a generic placeholder title.","No input or output schema is provided; callers cannot know what to send or expect back.","The platform lists many endpoint categories but provides no evidence any return real data."],"endpointUrl":"https://lowpaymentfee.com/api/v1/ach/182","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/ach/182","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 there is zero documentation on what the endpoint actually does, what inputs it accepts, or what it returns. The docs, pricing, and API pages are all empty beyond a wallet-connect prompt. The path hints at ACH functionality but nothing is 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'/call':12,30 '0.02':11,29,183,195 '000':178 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':212 '20':177 '402':173 'ACH API' 'Base USDC API' 'accept':77 'access':108 'ach':5,23,135 'ach/182':129 'across':197 'actual':239 'address':211 'advertis':193 'ai/ml':60 'analyt':59 'api':16,34,56,82,107,219 'autom':136 'automated clearing house' 'avail':156 'bank':139 'base':8,26,75,179,187,209 'behind':241 'broader':190 'call':94 'chain':205 'challeng':171 'clear':137 'collect':50 'confirm':164 'connect':225 'crawl':159 'crypto':63 'data':58,140 'doc':216 'document':114,232 'endpoint':6,24,38,68,98,162,199,246 'exampl':150,153 'expect':125 'explain':115 'financ':62 'function':240 'generic':104 'hous':138 'http':172 'imposs':235 'infer':61 'input':123 'key':17,35,83 'limit':86 'list':101 'live':165 'lowpaymentfee' 'lowpaymentfee.com':45,191 'make':233 'materi':160 'may':132 'micropay':95 'network':76,188 'no-api-key' 'offer':48 'on-chain':203 'page':220 'part':42 'particular':118 'path':127 'pay':2,20,53 'pay-per-call API' 'pay-per-request':1,19,52 'payment':79,142,201 'payment processing API' 'per':3,21,54,93 'per-cal':92 'platform':46,110,192,249 'post-method' 'premium':106 'price':196,217 'process':143 'prompt':227 'protocol':72 'provid':113 'rate':85 'relat':133 'render':222 'request':4,22,55,151,174 'requir':18,36 'respons':154 'return':120,167 'rout':119 'schema':149 'segment':128 'servic':66 'settl':202 'site':214 'span':57 'specif':97 'specul':147 'subscript':89 'suggest':130 'technic':231 'titl':105 'uniform':194 'unit':180 'usd':184 'usdc':14,32,78,182,207 'usdc-base' 'use':69 'util':65 'valid':169 'verifi':237 'via':9,27,206 'wallet':226 'x402':10,28,71,170 'x402 micropayment' 'x402-payment'","prices":[{"id":"49c63a37-5480-40d8-ac02-7f5757c1e5ae","listingId":"5ab7f428-9edb-4b40-9c30-31ed232a861e","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/ach/182","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:42:08.195Z"}],"sources":[{"listingId":"5ab7f428-9edb-4b40-9c30-31ed232a861e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/ach/182","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:42:08.195Z","lastSeenAt":"2026-04-30T05:04:22.440Z"}],"details":{"listingId":"5ab7f428-9edb-4b40-9c30-31ed232a861e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/ach/182 \\\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 a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/ach/182"},{"claim":"Platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/ach/182"},{"claim":"Docs, pricing, and API pages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Programmatic access to ACH-related data or operations via micropayment","Agent-driven financial workflows that need on-demand, keyless API access","Testing x402 payment flows on Base network"],"bestFor":["Developers experimenting with x402 pay-per-request protocols","Agents that need keyless, on-demand API access settled in USDC on Base","Low-volume consumers who prefer per-call pricing over subscriptions"],"notFor":["Users who need documented, well-specified API contracts before integrating","High-volume production workloads requiring SLAs and support","Anyone needing detailed ACH compliance or regulated payment processing guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:31.186Z"},"updatedAt":"2026-04-30T05:04:22.440Z"}}