{"id":"97cd377c-59f0-405a-9803-3e694507b1d2","shortId":"cZPbFJ","kind":"x402","title":"Download 2024-08 backup data via x402 micropayment on Base (USDC).","tagline":"Download 2024-08 backup data via x402 micropayment on Base (USDC).","description":"This endpoint at lowpaymentfee.com provides access to a downloadable backup file for August 2024 via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance, and utility services — all gated behind x402 micropayments settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/backups/2024-08/download` accepts POST requests and returns an `application/json` response. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0.02 USD per request, since USDC uses 6 decimals). Payment is sent to the on-chain address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the \"exact\" payment scheme on Base. No API keys or rate limits are required — access is granted purely through the x402 payment header.\n\nDocumentation on the site is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no description of what the backup data actually contains. The endpoint is live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know what payload to send or what data to expect in return.","tags":[],"capabilities":["x402-payment","usdc-base","backup-download","pay-per-request","no-api-key"],"categories":["storage","data"],"synonyms":["backup download","data export","file download","x402 API","USDC micropayment API","Base network API","pay-per-call backup"],"warnings":["No OpenAPI or schema documentation available — request body and response format are unknown","Docs, API, pricing, and README pages all render only 'Connect wallet' with no technical content","The nature and contents of the 'backup' data are completely undescribed","This endpoint path suggests a static/dated resource (2024-08); it may become stale or irrelevant"],"endpointUrl":"https://lowpaymentfee.com/api/v1/backups/2024-08/download","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/2024-08/download","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 402 challenge, but there is no OpenAPI spec, no request/response schema, and no meaningful documentation beyond a landing page listing. The purpose and contents of the 'backup' are entirely undocumented, making this effectively a stub 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'/api/v1/backups/2024-08/download':87 '0.02':110 '000':105 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':128 '20':104 '2024':2,13,36 '402':205 '6':117 'Base network API' 'USDC micropayment API' 'accept':88 'access':28,144 'actual':196 'addit':176 'address':127 'advertis':99 'ai/ml':66 'analyt':65 'api':62,137,162 'application/json':94 'august':35 'backup':4,15,32,194 'backup download' 'backup-download' 'base':10,21,82,106,135 'behind':74 'chain':126 'challeng':98,206 'connect':171 'contain':197 'cost':102 'data':5,16,64,195,223 'data export' 'decim':118 'descript':190 'detail':178 'difficult':214 'doc':161 'document':153,187,211 'download':1,12,31 'endpoint':24,47,86,199 'exact':131 'expect':225 'extrem':158 'file':33 'file download' 'financ':68 'gate':73 'grant':146 'header':152 'host':54 'infer':67 'key':138 'know':216 'lack':209 'limit':141 'live':201 'lowpaymentfee.com':26,51 'make':212 'mani':46 'maximum':101 'micropay':8,19,76 'network':83 'no-api-key' 'offer':48 'on-chain':124 'one':44 'openapi':182 'page':166 'pay':59 'pay-per-call backup' 'pay-per-request':58 'payload':218 'payment':40,119,132,151 'per':60,112 'platform':52 'post':89 'price':163 'prompt':173 'proper':204 'protocol':41 'provid':27 'pure':147 'rate':140 'readm':165 'render':168 'request':61,90,113 'request/response':185 'requir':143 'respons':95 'return':92,202,227 'schema':186 'scheme':133 'send':220 'sent':121 'servic':71 'settl':77 'sinc':114 'site':156 'span':63 'spars':159 'spec':183 'specif':85 'technic':177 'unit':107 'usd':111 'usdc':11,22,79,109,115 'usdc-base' 'use':116,129 'util':70 'varieti':56 'via':6,17,37 'wallet':172 'x402':7,18,39,75,97,150 'x402 API' 'x402-payment'","prices":[{"id":"6c11847b-eb43-4767-8c19-12282c891500","listingId":"97cd377c-59f0-405a-9803-3e694507b1d2","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/2024-08/download","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:59:19.773Z"}],"sources":[{"listingId":"97cd377c-59f0-405a-9803-3e694507b1d2","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/backups/2024-08/download","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:59:19.773Z","lastSeenAt":"2026-04-22T11:32:36.346Z"}],"details":{"listingId":"97cd377c-59f0-405a-9803-3e694507b1d2","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/backups/2024-08/download \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/backups/2024-08/download"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/backups/2024-08/download"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages show only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Downloading archived backup data for August 2024","Programmatic retrieval of backup files with per-request crypto payment","Agent-driven data acquisition without API key registration"],"bestFor":["Users who need one-off backup file downloads without account signup","Agents that can settle x402 payments in USDC on Base","Scenarios requiring keyless, permissionless API access"],"notFor":["Users who need detailed documentation or schema guarantees before calling","Bulk or high-frequency backup retrieval where per-request fees add up","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:27.259Z"},"updatedAt":"2026-04-22T11:32:36.346Z"}}