{"id":"668e5aa5-3e40-48e4-882e-f63b0d21bbdf","shortId":"GUCzW9","kind":"x402","title":"Database snapshot (2024-09) accessible via x402 micropayment on Base for $0.02 per request.","tagline":"Database snapshot (2024-09) accessible via x402 micropayment on Base for $0.02 per request.","description":"This endpoint serves a database snapshot dated September 2024 from lowpaymentfee.com, a platform offering a broad catalog of pay-per-request APIs settled via the x402 protocol on the Base network using USDC. The specific resource at `/api/v1/database/snapshots/2024-09` is not listed on the provider's main landing page among its advertised API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure), but it is live and returns a valid x402 402 challenge when probed.\n\nThe x402 challenge indicates the endpoint accepts POST requests, costs up to 20,000 base units of USDC (0.02 USD given 6 decimals), and settles on the Base L2 network. The platform advertises a uniform $0.02/request pricing across all endpoints, no API keys, no rate limits, and instant access. Payment is made via the x402 `exact` scheme to the specified payTo address.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what the database snapshot 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":["x402-payment","usdc-settlement","base-network","database-snapshot","pay-per-request","no-api-key"],"categories":["data","storage"],"synonyms":["database snapshot API","data export","historical data","2024-09 snapshot","lowpaymentfee","x402 data endpoint","micropayment API"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.","This specific endpoint (/api/v1/database/snapshots/2024-09) is not listed among the provider's advertised APIs on the landing page.","No request or response schema is provided; the data contents of the snapshot are completely unknown.","No examples of successful responses exist in any crawled material."],"endpointUrl":"https://lowpaymentfee.com/api/v1/database/snapshots/2024-09","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/2024-09","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 challenge, but there is zero documentation on what this database snapshot contains, no request/response schema, and the endpoint is not even listed among the provider's advertised APIs. Effectively a stub 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'/api/v1/database/snapshots/2024-09':67 '/request':139 '0.02':12,26,121,138 '000':116 '20':115 '2024':3,17,37 '2024-09 snapshot' '402':99 '6':124 'accept':109 'access':5,19,152,226 'across':141 'addit':186 'address':165 'advertis':80,135 'ai':85 'among':78 'analyt':84 'api':51,81,145,172,225 'base':10,24,59,117,130 'base-network' 'beyond':221 'broad':44 'catalog':45 'categori':82 'challeng':100,105 'connect':181 'consid':219 'contain':204 'content':187,216 'cost':112 'data':83,215 'data export' 'databas':1,15,33,202 'database snapshot API' 'database-snapshot' 'date':35 'decim':125 'descript':198 'doc':171 'document':166 'endpoint':30,108,143,211 'exact':159 'exampl':195 'extrem':168 'field':207 'financ':87 'generic':223 'given':123 'historical data' 'indic':106 'infrastructur':89 'instant':151 'key':146 'l2':131 'label':227 'land':76 'limit':149 'list':70 'live':93 'lowpaymentfee' 'lowpaymentfee.com':39 'made':155 'main':75 'micropay':8,22 'micropayment API' 'ml':86 'must':217 'network':60,132 'no-api-key' 'offer':42 'openapi':191 'page':77,176 'pay':48 'pay-per-request':47 'payment':153 'payto':164 'per':13,27,49 'platform':41,134 'post':110 'premium':224 'price':140,173 'probe':102 'prompt':183 'protocol':56 'provid':73 'purpos':213 'rate':148 'readm':175 'render':178 'request':14,28,50,111 'request/response':194 'resourc':65 'return':95,209 'schema':192 'scheme':160 'septemb':36 'serv':31 'settl':52,127 'snapshot':2,16,34,203 'spars':169 'specif':64 'specifi':163 'uniform':137 'unit':118 'unknown':220 'usd':122 'usdc':62,120 'usdc-settlement' 'use':61 'valid':97 'via':6,20,53,156 'wallet':182 'web3':88 'x402':7,21,55,98,104,158 'x402 data endpoint' 'x402-payment'","prices":[{"id":"536d4319-c4f4-47ec-8f18-ceff9b884aaf","listingId":"668e5aa5-3e40-48e4-882e-f63b0d21bbdf","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/2024-09","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T06:29:37.352Z"}],"sources":[{"listingId":"668e5aa5-3e40-48e4-882e-f63b0d21bbdf","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/database/snapshots/2024-09","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T06:29:37.352Z","lastSeenAt":"2026-04-22T05:31:56.157Z"}],"details":{"listingId":"668e5aa5-3e40-48e4-882e-f63b0d21bbdf","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2024-09 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network.","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2024-09"},{"claim":"The platform advertises $0.02/request uniform pricing, no API keys, no rate limits, and instant access on Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"The USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is the canonical USDC contract on Base.","source_url":"https://lowpaymentfee.com"}],"useCases":["Retrieving a September 2024 database snapshot via a single micropayment","Programmatic access to archived data without subscription or API key","Agent-driven data acquisition using x402 payment protocol"],"bestFor":["Agents needing one-shot access to a specific historical data snapshot","Developers experimenting with x402 micropayment-gated APIs","Use cases requiring no-signup, pay-per-call data retrieval"],"notFor":["Users who need documentation or schema guarantees before purchasing","Applications requiring real-time or frequently updated data","Bulk data consumers who need predictable response formats"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.826Z"},"updatedAt":"2026-04-22T05:31:56.157Z"}}