Database snapshot (2024-03) via x402 micropayment on Base — $0.02 per request.
What it does
This endpoint serves a database snapshot for the period 2024-03, hosted on lowpaymentfee.com. It is part of a broader suite of x402-payable APIs covering data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) through the x402 "exact" scheme.
The x402 challenge advertises a maxAmountRequired of 20,000 base units. Since USDC uses 6 decimals, this equals $0.02 per request — consistent with the provider's published flat pricing of $0.02/request across all endpoints. No API keys are required; access is granted instantly upon payment. The provider claims no rate limits and no minimum commitments.
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, and no description of what the "database snapshots/2024-03" 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, if any, is expected.
Capabilities
Use cases
- —Retrieving a historical database snapshot for March 2024
- —Programmatic data access without API key registration
- —Agent-driven data procurement via x402 micropayments
Fit
Best for
- —Agents that need one-shot data retrieval with crypto micropayments
- —Developers wanting keyless, pay-per-use database access on Base
- —Automated pipelines that settle payments in USDC on Base L2
Not for
- —Users who need detailed documentation or schema guarantees before purchasing
- —Bulk or streaming data access (each request costs $0.02 individually)
- —Non-crypto users who cannot settle USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/database/snapshots/2024-03 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI spec, no documentation beyond a wallet-connect prompt, no request/response schema, and no description of what the snapshot data actually contains. This is effectively a stub listing.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README all show only 'Connect wallet' with no technical content.
- —No request body schema or response schema provided; it is unknown what data this endpoint returns.
- —The nature of the 'database snapshots/2024-03' dataset is completely undocumented.
- —No OpenAPI or ai-plugin manifest found.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/database/snapshots/2024-03
- —Flat pricing of $0.02 per request across all endpoints, no API keys, no rate limitshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/database/snapshots/2024-03