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/109/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 the specified wallet address using the "exact" scheme. The platform advertises a uniform $0.02/request pricing across all its endpoints, with no API keys, no rate limits, and no minimum commitments required.
The endpoint returned a valid 402 challenge confirming it is live. However, documentation is extremely sparse — 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 "account statements" actually contain or what input parameters the POST body expects. The endpoint path includes a hardcoded account ID (109), and it is unclear whether this is a demo account or how callers would specify different accounts.
Capabilities
Use cases
- —Retrieving account statement data via a single paid API call
- —Programmatic access to financial account information without API key registration
- —Agent-driven workflows that need on-demand account data with crypto micropayments
Fit
Best for
- —Developers wanting keyless, pay-per-use API access settled in USDC on Base
- —AI agents that can handle x402 payment challenges natively
- —Users who prefer no-subscription, no-commitment API pricing
Not for
- —Users needing detailed API documentation or request/response schemas before integrating
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/109/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 there is virtually no documentation: no OpenAPI spec, no request/response examples, no explanation of what 'account statements' contains or what POST body is expected. Docs pages are empty beyond a wallet-connect prompt. The endpoint path has a hardcoded account ID with no explanation.
Warnings
- —No OpenAPI schema or request/response documentation available
- —Docs, API, pricing, and README pages all render only 'Connect wallet' with no content
- —Unclear what data 'account statements' returns or what POST body parameters are accepted
- —Hardcoded account ID (109) in the endpoint path — unclear if this is configurable
- —Platform lists many API categories but this specific endpoint (/accounts/109/statements) is not listed on the homepage
Citations
- —The endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/accounts/109/statements
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/accounts/109/statements
- —Docs, API, pricing, and README pages render only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs