{"id":"ba058454-5c70-4fe3-9d61-c3f10df44bb1","shortId":"Tc7btZ","kind":"x402","title":"Database snapshot access (2023-01) via x402 micropayment on Base for $0.02/request.","tagline":"Database snapshot access (2023-01) via x402 micropayment on Base for $0.02/request.","description":"This endpoint at lowpaymentfee.com provides access to a database snapshot dated 2023-01, served behind an x402 paywall on the Base network. The endpoint accepts POST requests and returns JSON data. Payment is settled in USDC (USD Coin) on Base, with a per-request cost of $0.02 (20,000 base units at 6 decimals).\n\nThe broader lowpaymentfee.com platform offers a suite of pay-per-call APIs spanning data & analytics (metrics, reports, data export, insights), AI & machine learning (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments required. Payments are handled via the x402 protocol on the Base L2 network.\n\nThe specific endpoint being listed here (`/api/v1/database/snapshots/2023-01`) appears to serve a historical database snapshot from January 2023. Documentation beyond the landing page 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 schema, no request/response examples, and no description of what data the snapshot contains or what fields the POST body expects.","tags":[],"capabilities":["x402-payment","base-network","usdc-settlement","database-snapshot","json-response","pay-per-request","no-api-key"],"categories":["data","storage"],"synonyms":["database snapshot API","historical data snapshot","2023 data export","x402 data endpoint","micropayment data access","Base USDC API","pay-per-call database"],"warnings":["No OpenAPI or schema documentation available — request and response formats are unknown","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no technical content","The snapshot is dated 2023-01 — data may be stale or of unknown provenance","No description of what the database snapshot actually contains"],"endpointUrl":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-01","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/2023-01","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 USDC on Base), but there is no OpenAPI schema, no request/response examples, and no documentation describing what data the snapshot contains or what POST body fields are expected. The docs/pricing/README pages are all blank beyond a wallet connect 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'/api/v1/database/snapshots/2023-01':167 '/request':13,26 '0.02':12,25,74,134 '000':76 '20':75 '2023':4,17,38,177 '2023 data export' '6':80 'Base USDC API' 'accept':51 'access':3,16,32 'ai':103 'analysi':107 'analyt':97 'api':94,139,188 'appear':168 'base':10,23,47,66,77,158 'base-network' 'behind':41 'beyond':179 'bodi':227 'broader':83 'call':93 'classif':110 'coin':64 'commit':147 'connect':197 'contain':221 'convers':127 'cost':72 'data':57,96,100,218 'databas':1,14,35,173 'database snapshot API' 'database-snapshot' 'date':37 'decim':81 'descript':215 'detail':204 'doc':187 'document':178 'embed':111 'endpoint':28,50,130,163 'estim':121 'exampl':212 'exchang':116 'expect':228 'export':101 'extrem':184 'feed':115 'field':224 'financ':112 'gas':120 'generat':128 'geocod':125 'handl':151 'histor':172 'historical data snapshot' 'infrastructur':123 'insight':102 'januari':176 'json':56 'json-response' 'key':140 'l2':159 'land':181 'learn':105 'limit':143 'list':165 'lowpaymentfee.com':30,84 'machin':104 'metric':98 'micropay':8,21 'micropayment data access' 'minimum':146 'network':48,160 'no-api-key' 'offer':86 'openapi':208 'page':182,192 'pay':91 'pay-per-cal':90 'pay-per-call database' 'pay-per-request' 'payment':58,149 'paywal':44 'per':70,92,135 'per-request':69 'platform':85 'post':52,226 'price':114,132,189 'prompt':199 'protocol':155 'provid':31 'quot':119 'rate':117,142 'readm':191 'render':194 'report':99 'request':53,71,136 'request/response':211 'requir':148 'return':55 'schema':209 'sentiment':106 'serv':40,170 'settl':60 'snapshot':2,15,36,174,220 'span':95 'spars':185 'specif':162 'suit':88 'summar':109 'technic':203 'text':108 'token':118 'unit':78 'usd':63 'usdc':62 'usdc-settlement' 'util':124 'valid':126 'via':6,19,152 'wallet':198 'web3':113 'x402':7,20,43,154 'x402 data endpoint' 'x402-payment'","prices":[{"id":"7160fad4-78f3-4498-8b42-fc0ae14c1759","listingId":"ba058454-5c70-4fe3-9d61-c3f10df44bb1","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/2023-01","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T05:29:54.071Z"}],"sources":[{"listingId":"ba058454-5c70-4fe3-9d61-c3f10df44bb1","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-01","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T05:29:54.071Z","lastSeenAt":"2026-04-22T07:01:49.886Z"}],"details":{"listingId":"ba058454-5c70-4fe3-9d61-c3f10df44bb1","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2023-01 \\\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":"Endpoint returns 402 with x402 challenge advertising USDC payment on Base network","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-01"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-01"},{"claim":"All endpoints priced at $0.02/request with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"Platform offers APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages show only 'Connect wallet' with no further content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving a historical database snapshot from January 2023","Programmatic access to archived data without API key registration","Agent-driven data retrieval with automatic x402 micropayment"],"bestFor":["Agents or applications that need one-off access to a 2023-01 database snapshot","Users who prefer pay-per-request pricing without subscriptions","Developers integrating x402-compatible payment flows on Base"],"notFor":["Users needing real-time or frequently updated data (this is a static 2023-01 snapshot)","Anyone requiring detailed API documentation or schema validation before integration","High-volume batch retrieval where per-request pricing may add up"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:24.41Z"},"updatedAt":"2026-04-22T07:01:49.886Z"}}