{"id":"86eb3fbb-c0f3-4d2e-b43f-a77a1595516c","shortId":"JTvue6","kind":"x402","title":"x402-gated backup endpoint on Base, pay-per-request with USDC at $0.02/call.","tagline":"x402-gated backup endpoint on Base, pay-per-request with USDC at $0.02/call.","description":"This endpoint at lowpaymentfee.com provides a \"Premium API Access\" resource at the path `/api/v1/backups/34`. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all gated via the x402 payment protocol on the Base network.\n\nThe specific `/api/v1/backups/34` endpoint accepts POST requests and returns `application/json`. Payment is settled in USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). The platform advertises a flat $0.02 per request across all its endpoints, with no API keys, no rate limits, and no minimum commitments required.\n\nThe exact functionality behind the `/api/v1/backups/34` path is unclear — the name \"backups/34\" suggests it may retrieve or create a specific backup resource (ID 34), but no documentation describes the request body schema or response format. The broader site's docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content. Without additional documentation, the precise purpose and data returned by this endpoint remain uncertain.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","pay-per-request","json-response","post-method"],"categories":["storage","infrastructure"],"synonyms":["backup API","x402 backup endpoint","USDC pay-per-call","lowpaymentfee API","Base network API","premium backup access"],"warnings":["No documentation exists for the /api/v1/backups/34 endpoint — its purpose and expected request/response formats are unknown.","All doc, pricing, and API pages on the site render only 'Connect wallet' with no usable content.","The endpoint path 'backups/34' with a hardcoded ID is unusual and may indicate a demo or placeholder resource.","No OpenAPI spec, no input schema, and no example responses are available."],"endpointUrl":"https://lowpaymentfee.com/api/v1/backups/34","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/backups/34","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 documentation for the /api/v1/backups/34 path — no request schema, no response schema, no description of what 'backups/34' actually does. The broader site docs pages are empty beyond a wallet connect 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'/call':16,32 '0.02':15,31,114,124 '000':109 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':100 '20':108 '34':166 '6':117 'Base network API' 'USDC pay-per-call' 'accept':88 'access':41 'across':127 'addit':199 'advertis':121 'ai/ml':66 'amount':106 'analyt':65 'api':40,61,133,185 'application/json':93 'backup':4,20,163 'backup API' 'backups/34':154 'base':7,23,82,102,110 'base-network' 'behind':146 'bodi':173 'broader':52,179 'call':60 'commit':141 'connect':191 'content':197 'contract':99 'creat':160 'data':64,69,205 'decim':118 'describ':170 'doc':182 'document':169,200 'dozen':55 'endpoint':5,21,34,62,87,130,209 'equal':113 'exact':144 'finance/web3':68 'flat':123 'format':177 'function':145 'gate':3,19,74 'id':165 'infer':67 'infrastructur':71 'json-response' 'key':134 'limit':137 'lowpaymentfee API' 'lowpaymentfee.com':36 'maximum':105 'may':157 'minimum':140 'name':153 'network':83 'offer':54 'page':186 'part':49 'path':45,149 'pay':9,25,58 'pay-per-cal':57 'pay-per-request':8,24 'payment':78,94 'per':10,26,59,125 'platform':53,120 'post':89 'post-method' 'precis':202 'premium':39 'premium backup access' 'price':183 'prompt':193 'protocol':79 'provid':37 'purpos':203 'rate':136 'remain':210 'render':188 'request':11,27,90,126,172 'requir':142 'resourc':42,164 'respons':176 'retriev':158 'return':92,206 'schema':174 'settl':96 'site':180 'span':63 'specif':85,162 'suggest':155 'uncertain':211 'unclear':151 'unit':111 'usdc':13,29,98,115 'usdc-settlement' 'use':116 'util':72 'via':75 'wallet':192 'without':198 'x402':2,18,77 'x402 backup endpoint' 'x402-gated':1,17 'x402-payment'","prices":[{"id":"caba1b54-6e23-4121-9155-a30d8c7f2550","listingId":"86eb3fbb-c0f3-4d2e-b43f-a77a1595516c","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/backups/34","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:59:28.666Z"}],"sources":[{"listingId":"86eb3fbb-c0f3-4d2e-b43f-a77a1595516c","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/backups/34","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:59:28.666Z","lastSeenAt":"2026-04-22T09:01:56.137Z"}],"details":{"listingId":"86eb3fbb-c0f3-4d2e-b43f-a77a1595516c","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/backups/34 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/backups/34"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/backups/34"},{"claim":"Platform advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The site lists endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving or creating backup data via a single paid API call","Integrating pay-per-use backup functionality into agent workflows","Programmatic access to backup resources without API key management"],"bestFor":["Agents needing on-demand backup access with crypto micropayments","Developers wanting keyless, pay-as-you-go API access on Base","Workflows requiring x402-compatible endpoints with USDC settlement"],"notFor":["Users needing detailed API documentation or schema validation before integration","High-volume backup operations where per-request pricing is cost-inefficient","Non-crypto users who cannot settle payments in USDC on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:26.767Z"},"updatedAt":"2026-04-22T09:01:56.137Z"}}