{"id":"d7002f6c-e223-49ca-8733-37450f4ab76f","shortId":"6rkard","kind":"x402","title":"Database snapshot for 2025-09, paid per-request via x402 on Base with USDC.","tagline":"Database snapshot for 2025-09, paid per-request via x402 on Base with USDC.","description":"This endpoint at lowpaymentfee.com provides access to a database snapshot for September 2025. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure utility APIs, all payable per-request via the x402 protocol on the Base network using USDC.\n\nThe specific endpoint `/api/v1/database/snapshots/2025-09` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises uniform $0.02/request pricing across all endpoints, with no API keys, no rate limits, and no minimum commitments required — payment is handled entirely 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 further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available. The endpoint name suggests it returns a periodic data snapshot, but the exact contents, schema, and supported query parameters are unknown from the available material.","tags":[],"capabilities":["database-snapshot","x402-payment","usdc-settlement","base-network","per-request-pricing","json-response"],"categories":["data","storage"],"synonyms":["database export","data snapshot","monthly snapshot","database dump","data archive","snapshot API","2025-09 snapshot"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'","No OpenAPI or schema definition for request or response payloads","The contents and structure of the 'database snapshots/2025-09' resource are entirely unknown","No examples or sample responses available from any source"],"endpointUrl":"https://lowpaymentfee.com/api/v1/database/snapshots/2025-09","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/database/snapshots/2025-09","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual content of the 'database snapshot' is completely undocumented, making this effectively a stub 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'/api/v1/database/snapshots/2025-09':79 '/request':118 '0.02':106,117 '000':95 '0x8335':100 '20':94 '2025':4,19,43 '2025-09 snapshot' '2913':101 '6':111 'accept':80 'access':36 'across':120 'advertis':89,115 'ai/ml':54 'analyt':53 'api':60,125,153 'avail':183,207 'base':13,28,72,96,103 'base-network' 'broader':49 'challeng':88 'commit':133 'connect':162 'content':197 'cost':92 'data':52,192 'data archive' 'data snapshot' 'databas':1,16,39 'database dump' 'database export' 'database-snapshot' 'decim':112 'detail':169 'doc':152 'document':144,178 'endpoint':32,78,122,185 'entir':138 'equal':105 'exact':196 'exampl':182 'extrem':149 'finance/web3':56 'handl':137 'header':143 'infer':55 'infrastructur':58 'json':85 'json-response' 'key':126 'limit':129 'lowpaymentfee.com':34 'materi':208 'maximum':91 'minimum':132 'monthly snapshot' 'name':186 'network':73 'offer':51 'openapi':173 'page':157 'paid':6,21 'paramet':202 'part':46 'payabl':62 'payment':135,142 'per':8,23,64,107 'per-request':7,22,63 'per-request-pricing' 'period':191 'platform':50,114 'post':81 'price':119,154 'prompt':164 'protocol':69 'provid':35 'queri':201 'rate':128 'readm':156 'render':159 'request':9,24,65,82,108 'request/response':176 'requir':134 'return':84,189 'schema':177,198 'septemb':42 'site':147 'snapshot':2,17,40,193 'snapshot API' 'spars':150 'spec':174 'specif':77 'suggest':187 'support':200 'technic':168 'uniform':116 'unit':97 'unknown':204 'usag':181 'usdc':15,30,75,99,109 'usdc-settlement' 'use':74,110 'util':59 'via':10,25,66 'wallet':163 'x402':11,26,68,87,141 'x402-payment'","prices":[{"id":"93d01ce0-44b0-4a2b-98ed-971bf4f59674","listingId":"d7002f6c-e223-49ca-8733-37450f4ab76f","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/database/snapshots/2025-09","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T05:30:00.024Z"}],"sources":[{"listingId":"d7002f6c-e223-49ca-8733-37450f4ab76f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/database/snapshots/2025-09","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T05:30:00.024Z","lastSeenAt":"2026-04-22T07:01:50.115Z"}],"details":{"listingId":"d7002f6c-e223-49ca-8733-37450f4ab76f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2025-09 \\\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":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2025-09"},{"claim":"Platform advertises $0.02/request pricing, no API keys, no rate limits, instant access, Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2025-09"},{"claim":"Docs, API, pricing, and README pages render only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving a September 2025 database snapshot for offline analysis","Programmatic access to periodic data snapshots without API key management","Agent-driven data acquisition with per-call crypto micropayments"],"bestFor":["Agents or scripts that need on-demand database snapshots paid via crypto","Users who want keyless, pay-per-use access to data exports","Workflows requiring Base-network USDC micropayments for data retrieval"],"notFor":["Users who need detailed documentation or schema guarantees before purchasing","Applications requiring free or subscription-based data access","Use cases needing real-time streaming data rather than periodic snapshots"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:24.154Z"},"updatedAt":"2026-04-22T07:01:50.115Z"}}