{"id":"c3b1b0da-ad76-46b2-8a26-2facfcdb8f9c","shortId":"4CzN56","kind":"x402","title":"Database snapshot access for 2026-09, paid per-request via x402 on Base with USDC.","tagline":"Database snapshot access for 2026-09, paid per-request via x402 on Base with USDC.","description":"This endpoint at lowpaymentfee.com provides access to a database snapshot for the period 2026-09. 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/2026-09` 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 instant access.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the \"database snapshots/2026-09\" dataset actually contains. The endpoint is live (returns a valid 402 challenge), but without documentation it is unclear what data is returned or what POST body parameters are expected.","tags":[],"capabilities":["x402-payment","usdc-base","per-request-pricing","database-snapshot","json-response","post-method"],"categories":["data","storage"],"synonyms":["database snapshot API","data export","lowpaymentfee","x402 data endpoint","USDC micropayment API","Base network API","pay-per-request data"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content","No OpenAPI or request/response schema provided; request body format is unknown","The nature and contents of the 'database snapshots/2026-09' dataset are completely undocumented","The '2026-09' date label is in the future relative to typical current dates, which is unusual and unexplained"],"endpointUrl":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-09","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/2026-09","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming pricing and network details. However, there is no OpenAPI schema, no documentation of request parameters or response format, and no description of what the 2026-09 snapshot contains. The docs/pricing/README pages are all empty beyond a wallet connect prompt. This is effectively a stub 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'/api/v1/database/snapshots/2026-09':83 '/request':122 '0.02':110,121 '000':99 '0x8335':104 '20':98 '2026':5,21,46 '2913':105 '402':185 '6':115 'Base network API' 'USDC micropayment API' 'accept':84 'access':3,19,38,136 'across':124 'actual':176 'advertis':93,119 'ai/ml':58 'analyt':57 'api':64,129,143 'base':14,30,76,100,107 'bodi':200 'broader':53 'challeng':92,186 'connect':152 'contain':177 'content':158 'cost':96 'data':56,194 'data export' 'databas':1,17,41,173 'database snapshot API' 'database-snapshot' 'dataset':175 'decim':116 'descript':169 'doc':142 'document':137,189 'endpoint':34,82,126,179 'equal':109 'exampl':166 'expect':203 'extrem':139 'finance/web3':60 'infer':59 'infrastructur':62 'instant':135 'json':89 'json-response' 'key':130 'limit':133 'live':181 'lowpaymentfee' 'lowpaymentfee.com':36 'maximum':95 'network':77 'offer':55 'openapi':162 'page':147 'paid':7,23 'paramet':201 'part':50 'pay-per-request data' 'payabl':66 'per':9,25,68,111 'per-request':8,24,67 'per-request-pricing' 'period':45 'platform':54,118 'post':85,199 'post-method' 'price':123,144 'prompt':154 'protocol':73 'provid':37 'rate':132 'readm':146 'render':149 'request':10,26,69,86,112 'request/response':165 'return':88,182,196 'schema':163 'snapshot':2,18,42 'snapshots/2026-09':174 'spars':140 'specif':81 'substant':157 'unclear':192 'uniform':120 'unit':101 'usdc':16,32,79,103,113 'usdc-base' 'use':78,114 'util':63 'valid':184 'via':11,27,70 'wallet':153 'without':188 'x402':12,28,72,91 'x402 data endpoint' 'x402-payment'","prices":[{"id":"17359a62-db1d-4f2b-ad50-34754af3956c","listingId":"c3b1b0da-ad76-46b2-8a26-2facfcdb8f9c","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/2026-09","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T06:29:36.144Z"}],"sources":[{"listingId":"c3b1b0da-ad76-46b2-8a26-2facfcdb8f9c","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-09","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T06:29:36.144Z","lastSeenAt":"2026-04-22T05:31:56.088Z"}],"details":{"listingId":"c3b1b0da-ad76-46b2-8a26-2facfcdb8f9c","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2026-09 \\\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 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-09"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-09"},{"claim":"Docs, pricing, API, and README pages render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving a database snapshot for the 2026-09 period","Programmatic data access without API key registration","Agent-driven data purchasing via x402 micropayments"],"bestFor":["Agents or scripts that need keyless, pay-per-call data access","Users who want to pay with USDC on Base without subscriptions","Automated workflows requiring on-demand database snapshots"],"notFor":["Users who need detailed documentation or schema before purchasing","High-volume bulk data retrieval where per-request fees add up","Anyone requiring non-crypto payment methods"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.865Z"},"updatedAt":"2026-04-22T05:31:56.088Z"}}