{"id":"c3a7bdee-f4e2-4466-a2bf-ec29b1370a52","shortId":"aC5bFL","kind":"x402","title":"x402-gated database snapshot endpoint on Base, paying $0.02 per request in USDC.","tagline":"x402-gated database snapshot endpoint on Base, paying $0.02 per request in USDC.","description":"This endpoint at lowpaymentfee.com provides access to a database snapshot for the period 2026-01 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-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all gated behind x402 micropayments on the Base network.\n\nThe specific resource `/api/v1/database/snapshots/2026-01` accepts POST requests and returns JSON. Payment is settled in USDC (contract 0x8335…2913 on Base) with a maximum amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — each call is independently paid via the X-PAYMENT header.\n\nDocumentation beyond the landing page is extremely sparse: the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no description of what the \"database snapshot\" actually contains. The endpoint is confirmed live (returns a proper 402 challenge), but without documentation it is unclear what data is returned or what POST body (if any) is expected.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","database-snapshot","pay-per-request","no-api-key","json-response"],"categories":["data","storage"],"synonyms":["database snapshot API","x402 data endpoint","micropayment API","USDC pay-per-call","Base network API","lowpaymentfee","database export"],"warnings":["No documentation available — /docs, /pricing, /api, and /README all return only a 'Connect wallet' prompt with no technical content.","No OpenAPI or schema definition found; request body and response format are completely unknown.","The nature of the 'database snapshot 2026-01' data is undocumented — it is unclear what data is returned.","The date '2026-01' is in the future relative to typical current dates, which is unusual and unexplained."],"endpointUrl":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-01","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/2026-01","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no description of what the database snapshot actually contains. This is effectively a stub 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'/api':160 '/api/v1/database/snapshots/2026-01':93 '/docs':158 '/pricing':159 '/readme':162 '0.02':10,24,121 '000':116 '0x8335':106 '20':115 '2026':42 '2913':107 '402':202 '6':124 'Base network API' 'USDC pay-per-call' 'accept':94 'access':34 'actual':192 'ai/ml':74 'amount':113 'analyt':73 'api':70,129 'base':8,22,88,109,117 'base-network' 'behind':83 'beyond':150 'bodi':217 'broad':63 'call':69,139 'catalog':64 'challeng':203 'commit':137 'confirm':197 'connect':168 'contain':193 'contract':105 'data':72,77,211 'databas':4,18,37,190 'database export' 'database snapshot API' 'database-snapshot' 'decim':125 'descript':186 'detail':175 'document':149,206 'endpoint':6,20,30,54,195 'equal':120 'expect':221 'extrem':155 'finance/web3':76 'gate':3,17,82 'header':148 'host':61 'independ':141 'infer':75 'infrastructur':79 'json':99 'json-response' 'key':130 'land':152 'limit':133 'live':198 'lowpaymentfee' 'lowpaymentfee.com':32,58 'mani':53 'maximum':112 'micropay':85 'micropayment API' 'network':89 'no-api-key' 'offer':55 'one':51 'openapi':179 'page':153,163 'paid':142 'pay':9,23,67 'pay-per-cal':66 'pay-per-request' 'payment':47,100,147 'per':11,25,68 'period':41 'platform':59 'post':95,216 'prompt':170 'proper':201 'protocol':48 'provid':33 'rate':132 'render':165 'request':12,26,96 'request/response':182 'resourc':92 'return':98,199,213 'schema':183 'settl':102 'snapshot':5,19,38,191 'span':71 'spars':156 'spec':180 'specif':91 'subscript':136 'technic':174 'unclear':209 'unit':118 'usdc':14,28,104,122 'usdc-settlement' 'use':123 'util':80 'via':44,143 'wallet':169 'without':205 'x':146 'x-payment':145 'x402':2,16,46,84 'x402 data endpoint' 'x402-gated':1,15 'x402-payment'","prices":[{"id":"a19381eb-37f5-4a50-9f5c-8bfb6c16b6cf","listingId":"c3a7bdee-f4e2-4466-a2bf-ec29b1370a52","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/2026-01","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T06:29:35.556Z"}],"sources":[{"listingId":"c3a7bdee-f4e2-4466-a2bf-ec29b1370a52","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-01","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T06:29:35.556Z","lastSeenAt":"2026-04-22T05:31:56.058Z"}],"details":{"listingId":"c3a7bdee-f4e2-4466-a2bf-ec29b1370a52","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2026-01 \\\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 a 402 challenge with x402Version 1, accepting USDC on Base with maxAmountRequired of 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-01"},{"claim":"Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/database/snapshots/2026-01"},{"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 2026-01 period via a single paid API call","Agent-driven data acquisition without pre-registration or API keys","Programmatic access to archived or periodic data snapshots"],"bestFor":["Agents that need keyless, pay-per-call data access on Base","Developers experimenting with x402 micropayment-gated APIs","Scenarios requiring no subscription commitment for occasional data pulls"],"notFor":["Users who need detailed documentation or schema guarantees before integrating","High-volume batch retrieval where per-request pricing may add up","Anyone needing to understand the exact data contents before paying — no docs available"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.875Z"},"updatedAt":"2026-04-22T05:31:56.058Z"}}