x402-gated database snapshot endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a database snapshot resource at the path `/api/v1/database/snapshots/2026-12`. It is part of a broader platform that offers numerous pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all gated via the x402 payment protocol on the Base network.
The specific endpoint probed returns an x402 challenge requesting payment of up to 20,000 base units of USDC (contract `0x8335…2913` on Base). Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the site's advertised flat pricing of $0.02/request across all endpoints. Payment is made via the x402 "exact" scheme, settling on-chain to address `0x1A2B…85F3`. The endpoint accepts POST requests and returns `application/json`.
The platform advertises no API keys, no rate limits, and instant access. However, documentation is extremely thin — 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/2026-12" resource actually contains. The endpoint name and path suggest a dated snapshot of some database, but the actual data schema and contents are unknown.
Capabilities
Use cases
- —Retrieving a specific dated database snapshot (2026-12) via a single paid API call
- —Programmatic access to data exports without API key management
- —Agent-driven data retrieval with on-chain USDC micropayments
Fit
Best for
- —Developers or agents needing keyless, pay-per-use data access on Base
- —Use cases where on-chain payment settlement is preferred over traditional billing
- —Quick one-off data retrievals without subscription commitments
Not for
- —Users who need detailed documentation or schema guarantees before integrating
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone requiring non-crypto payment methods
Quick start
# Send a POST with x402 payment header to retrieve the snapshot
curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2026-12 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, no documentation beyond a wallet-connect prompt, and no description of what the database snapshot actually contains. This is effectively a stub listing.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
- —No OpenAPI or schema definition for request or response payloads
- —The nature and contents of the 'database/snapshots/2026-12' resource are completely undocumented
- —The date '2026-12' in the path is in the future, which is unusual for a 'snapshot' resource
Citations
- —The endpoint returns an x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/database/snapshots/2026-12
- —The platform advertises $0.02/request flat pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/database/snapshots/2026-12