Database snapshot for May 2025, paid per-request via x402 on Base with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a database snapshot for May 2025 (`/api/v1/database/snapshots/2025-05`). 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.
The specific endpoint probed returns a 402 challenge requesting payment of up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per call. The platform advertises a flat $0.02/request pricing across all its endpoints, with no API keys, no rate limits, and instant access. Payment is settled on-chain to a specified address using the "exact" x402 scheme.
Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no examples of what the database snapshot actually contains. The endpoint accepts POST requests and returns `application/json`, but the structure of both the request body and the response payload is unknown. Prospective users should be aware that the actual content and utility of this "database snapshot" endpoint is entirely undocumented.
Capabilities
Use cases
- —Retrieving a point-in-time database snapshot for May 2025
- —Programmatic data access without API key management
- —Agent-driven data purchasing via x402 micropayments
Fit
Best for
- —Developers wanting keyless, pay-per-use data access on Base
- —AI agents that can settle x402 USDC payments autonomously
- —Users needing a specific May 2025 data snapshot
Not for
- —Users who need detailed documentation or schema guarantees before purchasing
- —Anyone requiring free or subscription-based access
- —Use cases needing real-time streaming data rather than a static snapshot
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2025-05 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is zero documentation on what the database snapshot contains, no request/response schema, and no examples. The docs pages are all blank wallet-connect prompts. The listing is effectively a stub with only pricing and protocol details confirmed.
Warnings
- —No documentation available — /docs, /api, /pricing, and /README all show only 'Connect wallet' with no content
- —No OpenAPI spec or schema describing request body or response format
- —The actual contents of the 'database snapshots/2025-05' endpoint are completely unknown
- —No examples of request or response payloads available
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/database/snapshots/2025-05
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/database/snapshots/2025-05