x402-gated account statements endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to account statements via a POST request to `/api/v1/accounts/199/statements`. It is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all gated behind the x402 payment protocol on the Base network.
The specific endpoint probed charges up to 0.02 USDC per request (maxAmountRequired of 20,000 base units with USDC's 6 decimals). Payment is settled on-chain to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the USDC contract on Base (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The x402 challenge uses the "exact" scheme with a 300-second timeout.
The platform advertises a uniform $0.02/request pricing across all endpoints, with no API keys, no rate limits, and no minimum commitments. However, documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. The actual response schema for this statements endpoint is undocumented, and it is unclear what data the account statements contain or what input parameters the POST body expects. The endpoint path includes a hardcoded account ID (199), suggesting it may be a demo or single-tenant resource rather than a general-purpose API.
Capabilities
Use cases
- —Retrieving account statement data via a single paid API call
- —Programmatic access to financial records without subscription or API key management
- —Agent-driven data retrieval with on-chain USDC micropayments
Fit
Best for
- —Developers wanting keyless, pay-per-use API access on Base
- —AI agents that can settle x402 payments autonomously
- —Users who prefer on-chain micropayments over traditional billing
Not for
- —Users needing detailed API documentation or guaranteed SLAs
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone requiring well-documented request/response schemas before integration
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/199/statements \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and no explanation of what 'account statements' actually returns. The hardcoded account ID in the path raises questions about generality.
Warnings
- —Documentation pages (docs, API, pricing, README) all render only 'Connect wallet' with no usable content
- —No request body schema or response schema documented anywhere
- —Endpoint path contains a hardcoded account ID (199) — unclear if this is a demo or production resource
- —No OpenAPI specification available
- —The broader platform lists many endpoints but none appear to have public documentation
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/accounts/199/statements
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/accounts/199/statements
- —Documentation, API, pricing, and README pages all show only 'Connect wallet'https://lowpaymentfee.com/docs