{"id":"c89ad5b5-3476-4f01-b746-4e28752982a9","shortId":"YsqwTJ","kind":"x402","title":"Database snapshot access (2023-05) via x402 micropayment on Base network for $0.02 per request.","tagline":"Database snapshot access (2023-05) via x402 micropayment on Base network for $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides access to a database snapshot dated 2023-05 via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform share a uniform pricing model of $0.02 per request, settled in USDC on the Base network with no API keys, rate limits, or commitments required.\n\nThe specific endpoint `/api/v1/database/snapshots/2023-05` accepts POST requests and returns JSON. The x402 challenge confirms it is live, requesting a maximum of 20,000 base units of USDC (0.02 USD given 6 decimals) per call, paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. The payment scheme is \"exact\" with a timeout of 300 seconds.\n\nDocumentation on the platform is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no description of what the 2023-05 database snapshot actually contains or what fields are returned. The endpoint's purpose and data contents must be considered unknown beyond the generic \"Premium API Access\" label.","tags":[],"capabilities":["database-snapshot","x402-payment","usdc-base","pay-per-request","json-response","post-method"],"categories":["data","storage"],"synonyms":["database export","data snapshot","historical data","2023 may snapshot","premium data access","lowpaymentfee","database download"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content","No request or response schema provided; the contents of the 2023-05 database snapshot are completely undocumented","No OpenAPI spec or ai-plugin manifest found","The generic title 'Premium API Access' gives no indication of what data is actually served"],"endpointUrl":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-05","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/2023-05","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming pricing and payment details. However, there is zero documentation on what the snapshot contains, no request/response schema, and all doc pages render only 'Connect wallet'. The listing is effectively a stub with confirmed liveness but unknown 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'/api/v1/database/snapshots/2023-05':114 '0.02':13,28,92,138 '000':133 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':148 '20':132 '2023':4,19,42,202 '2023 may snapshot' '300':160 '6':141 'accept':115 'access':3,18,36,229 'actual':206 'address':147 'ai/ml':74 'analyt':73 'api':70,104,171,228 'base':10,25,100,134,150 'beyond':224 'broad':63 'call':144 'catalog':64 'challeng':123 'commit':109 'confirm':124 'connect':180 'consid':222 'contain':207 'content':186,219 'crypto':77 'data':72,218 'data snapshot' 'databas':1,16,39,204 'database download' 'database export' 'database-snapshot' 'date':41 'decim':142 'descript':198 'doc':170 'document':162,195 'endpoint':32,54,82,113,214 'exact':155 'extrem':167 'field':210 'financ':76 'generic':226 'given':140 'historical data' 'host':61 'infer':75 'json':120 'json-response' 'key':105 'label':230 'limit':107 'live':127 'lowpaymentfee' 'lowpaymentfee.com':34,58 'mani':53 'maximum':130 'micropay':8,23 'model':90 'must':220 'network':11,26,101 'offer':55 'one':51 'openapi':190 'page':175 'paid':145 'pay':67 'pay-per-request':66 'payment':47,152 'per':14,29,68,93,143 'platform':59,85,165 'post':116 'post-method' 'premium':227 'premium data access' 'price':89,172 'prompt':182 'protocol':48 'provid':35 'purpos':216 'rate':106 'readm':174 'render':177 'request':15,30,69,94,117,128 'request/response':193 'requir':110 'return':119,212 'schema':194 'scheme':153 'second':161 'servic':80 'settl':95 'share':86 'snapshot':2,17,40,205 'span':71 'spars':168 'spec':191 'specif':112 'timeout':158 'uniform':88 'unit':135 'unknown':223 'usd':139 'usdc':97,137 'usdc-base' 'util':79 'via':6,21,44 'wallet':181 'x402':7,22,46,122 'x402-payment'","prices":[{"id":"b2f3920d-b98e-4de4-9020-fc567a36d3f8","listingId":"c89ad5b5-3476-4f01-b746-4e28752982a9","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/2023-05","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":"c89ad5b5-3476-4f01-b746-4e28752982a9","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-05","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T05:30:00.024Z","lastSeenAt":"2026-04-22T07:32:06.954Z"}],"details":{"listingId":"c89ad5b5-3476-4f01-b746-4e28752982a9","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2023-05 \\\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 HTTP 402 with x402 challenge requesting 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-05"},{"claim":"Platform pricing is $0.02 per request with no API keys, rate limits, or commitments","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2023-05"},{"claim":"Docs, API, pricing, and README pages render only 'Connect wallet'","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving a historical database snapshot from May 2023","Programmatic access to archived data via micropayment","Agent-driven data acquisition without API key registration"],"bestFor":["Agents needing keyless, pay-per-call access to archived data","Workflows requiring on-chain payment settlement on Base","Quick one-shot data retrieval without subscription commitments"],"notFor":["Users who need to understand the schema or contents before paying (no docs available)","Real-time or streaming data needs (this is a static historical snapshot)","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:24.088Z"},"updatedAt":"2026-04-22T07:32:06.954Z"}}