{"id":"0be055d3-6ebd-4593-99fa-703f2d36d38e","shortId":"QaByTW","kind":"x402","title":"Database snapshot access (2023-11) via x402 micropayment on Base network for $0.02 per request.","tagline":"Database snapshot access (2023-11) via x402 micropayment on Base network for $0.02 per request.","description":"This endpoint provides access to a database snapshot dated November 2023, served by lowpaymentfee.com. It uses the x402 payment protocol, accepting USDC payments on the Base network at $0.02 per request. No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid payment proof to receive the data.\n\nThe hosting site (lowpaymentfee.com) offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities, all priced uniformly at $0.02 per request. This specific endpoint (`/api/v1/database/snapshots/2023-11`) is not prominently listed on the landing page among the featured APIs, so its exact response schema and data contents are unclear. The endpoint is confirmed live (returns a proper 402 x402 challenge) and accepts POST requests.\n\nDocumentation beyond the landing page 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 example request/response payloads, and no description of what the 2023-11 snapshot contains.","tags":[],"capabilities":["x402-payment","usdc-base-network","database-snapshot","pay-per-request","no-api-key","post-method"],"categories":["data","storage"],"synonyms":["database export","data snapshot","historical data","2023 november snapshot","lowpaymentfee","x402 data api","base network api"],"warnings":["No documentation available — /docs, /pricing, /README all return only a wallet-connect prompt","Endpoint not listed among the site's featured APIs; its contents are unknown","No response schema or example data provided","Unknown data contents — 'database snapshots/2023-11' is not described anywhere"],"endpointUrl":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-11","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/2023-11","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge, but there is no documentation, no OpenAPI schema, no example payloads, and no description of what data the snapshot actually contains. The listing is essentially a stub with only pricing and protocol details 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'/api':169 '/api/v1/database/snapshots/2023-11':121 '/docs':168 '/pricing':170 '/readme':172 '0.02':13,28,59,115 '2023':4,19,41,201 '2023 november snapshot' '402':152 'accept':51,156 'access':3,18,34 'addit':183 'ai/ml':104 'among':130 'analyt':103 'api':63,100,133 'attach':72 'base':10,25,56 'base network api' 'beyond':160 'broad':93 'call':99 'caller':70 'catalog':94 'challeng':154 'confirm':147 'connect':178 'contain':204 'content':141 'data':86,102,107,140 'data snapshot' 'databas':1,16,37 'database export' 'database-snapshot' 'date':39 'descript':197 'detail':185 'document':159 'endpoint':32,120,145 'exact':136 'exampl':192 'extrem':165 'featur':132 'finance/web3':106 'header':77 'historical data' 'host':88 'infer':105 'infrastructur':109 'key':64 'land':128,162 'limit':67 'list':125 'live':148 'lowpaymentfee' 'lowpaymentfee.com':44,90 'micropay':8,23 'network':11,26,57 'no-api-key' 'novemb':40 'offer':91 'openapi':189 'page':129,163,173 'pay':97 'pay-per-cal':96 'pay-per-request' 'payload':194 'payment':49,53,76,81 'per':14,29,60,98,116 'post':157 'post-method' 'price':112 'promin':124 'prompt':180 'proof':82 'proper':151 'protocol':50 'provid':33 'rate':66 'receiv':84 'render':175 'request':15,30,61,117,158 'request/response':193 'requir':69 'respons':137 'return':149 'schema':138 'serv':42 'simpli':71 'site':89 'snapshot':2,17,38,203 'span':101 'spars':166 'spec':190 'specif':119 'technic':184 'unclear':143 'uniform':113 'usdc':52 'usdc-base-network' 'use':46 'util':110 'valid':80 'via':6,21 'wallet':179 'x':75 'x-payment':74 'x402':7,22,48,153 'x402 data api' 'x402-payment'","prices":[{"id":"bc065637-6564-43d4-b2f9-e93e3a86499f","listingId":"0be055d3-6ebd-4593-99fa-703f2d36d38e","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/2023-11","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T05:29:58.838Z"}],"sources":[{"listingId":"0be055d3-6ebd-4593-99fa-703f2d36d38e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-11","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T05:29:58.838Z","lastSeenAt":"2026-04-22T07:01:50.090Z"}],"details":{"listingId":"0be055d3-6ebd-4593-99fa-703f2d36d38e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2023-11 \\\n  -H \"X-PAYMENT: <x402_payment_proof>\" \\\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 a valid x402 challenge with maxAmountRequired of 20000 base units (USDC, 6 decimals = $0.02) on Base network","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-11"},{"claim":"Site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving a historical database snapshot from November 2023","Programmatic data access without API key registration","Agent-driven data procurement via x402 micropayments"],"bestFor":["Agents needing keyless, pay-per-call data access on Base","Developers exploring x402 protocol integrations","Accessing archived/historical dataset snapshots"],"notFor":["Users who need detailed documentation or schema guarantees before purchasing","Real-time or streaming data needs","Anyone without USDC on Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:24.151Z"},"updatedAt":"2026-04-22T07:01:50.090Z"}}