{"id":"6cad991f-d46f-4f2c-99b3-507f454fc694","shortId":"krgWCb","kind":"x402","title":"Download June 2024 backup data via x402 micropayment on Base for $0.02 per request.","tagline":"Download June 2024 backup data via x402 micropayment on Base for $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides access to a downloadable backup file for June 2024 via the x402 payment protocol. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure utility APIs — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/backups/2024-06/download` accepts POST requests and returns `application/json` content. Payment is handled inline via the x402 protocol: callers include an `X-PAYMENT` header with a signed payment of up to 20,000 base units of USDC (i.e., $0.02, since USDC uses 6 decimals). The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a maximum timeout of 300 seconds.\n\nThe platform advertises no API keys, no rate limits, and instant access. Documentation pages exist at `/docs`, `/pricing`, and `/api`, but at crawl time they rendered only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema beyond the x402 challenge metadata, and no sample payloads. The exact contents of the backup file and its structure are unknown from available materials.","tags":[],"capabilities":["x402-payment","usdc-base","backup-download","per-request-micropayment","no-api-key"],"categories":["storage","data"],"synonyms":["backup download","data export","June 2024 backup","x402 API","micropayment API","Base USDC endpoint","pay-per-request backup"],"warnings":["No OpenAPI or schema documentation available — request body and response structure are unknown.","All doc/pricing/API pages render only 'Connect wallet' with no technical content.","The nature and contents of the 'June 2024 backup' are unspecified; purpose is unclear.","No examples or sample responses are available from the provider."],"endpointUrl":"https://lowpaymentfee.com/api/v1/backups/2024-06/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/2024-06/download","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the purpose of the backup file is entirely opaque. This is effectively a stub 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'/api/v1/backups/2024-06/download':82 '/docs':157 '/pricing':158 '0.02':12,26,68,119 '000':113 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':131 '20':112 '2024':3,17,42 '300':139 '6':123 'Base USDC endpoint' 'June 2024 backup' 'accept':83 'access':34,152 'addit':174 'address':130 'advertis':143 'ai/ml':58 'analyt':57 'api':64,145 'application/json':88 'avail':207 'backup':4,18,38,199 'backup download' 'backup-download' 'base':10,24,77,114,133 'beyond':185 'broader':53 'caller':98 'challeng':188 'connect':169 'content':89,196 'crawl':163 'data':5,19,56 'data export' 'decim':124 'detail':176 'document':153 'download':1,15,37 'endpoint':30,81 'exact':195 'exist':155 'file':39,200 'finance/web3':60 'handl':92 'header':104 'i.e':118 'includ':99 'infer':59 'infrastructur':62 'inlin':93 'instant':151 'june':2,16,41 'key':146 'limit':149 'lowpaymentfee.com':32 'materi':208 'maximum':136 'metadata':189 'micropay':8,22 'micropayment API' 'network':78 'no-api-key' 'offer':55 'openapi':180 'page':154 'part':50 'pay-per-request backup' 'payload':193 'payment':46,90,103,108,126 'per':13,27,69 'per-request-micropayment' 'platform':54,142 'post':84 'price':66 'prompt':171 'protocol':47,97 'provid':33 'rate':148 'render':166 'request':14,28,70,85 'request/response':183 'return':87 'sampl':192 'schema':184 'second':140 'sent':128 'settl':72 'sign':107 'sinc':120 'spec':181 'specif':80 'structur':203 'technic':175 'time':164 'timeout':137 'unit':115 'unknown':205 'usdc':74,117,121 'usdc-base' 'use':122 'util':63 'via':6,20,43,94 'wallet':170 'x':102 'x-payment':101 'x402':7,21,45,96,187 'x402 API' 'x402-payment'","prices":[{"id":"bea4099a-1978-42d2-bd75-8f491a4137a8","listingId":"6cad991f-d46f-4f2c-99b3-507f454fc694","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/2024-06/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":"2026-04-18T19:29:45.194Z"}],"sources":[{"listingId":"6cad991f-d46f-4f2c-99b3-507f454fc694","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/backups/2024-06/download","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:29:45.194Z","lastSeenAt":"2026-04-22T18:04:41.458Z"}],"details":{"listingId":"6cad991f-d46f-4f2c-99b3-507f454fc694","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/backups/2024-06/download \\\n  -H \"X-PAYMENT: <x402-signed-payment-header>\" \\\n  -H \"Content-Type: application/json\"","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 USDC payment on Base","source_url":"https://lowpaymentfee.com/api/v1/backups/2024-06/download"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/backups/2024-06/download"},{"claim":"Platform advertises $0.02/request, no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/backups/2024-06/download"},{"claim":"Documentation pages (/docs, /pricing, /api) show only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Downloading archived backup data for June 2024 from the provider","Programmatic retrieval of periodic data snapshots via micropayment","Agent-driven data acquisition without pre-registration or API keys"],"bestFor":["Agents or scripts that need one-off backup file retrieval without account setup","Developers experimenting with x402 pay-per-call patterns on Base","Scenarios requiring keyless, instant access to archived data"],"notFor":["Users needing 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":"2026-02-17T23:13:28.385Z"},"updatedAt":"2026-04-22T18:04:41.458Z"}}