x402-gated account statements API on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to account statements via a POST request to `/api/v1/accounts/4/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 endpoint accepts USDC payments on Base (token contract 0x8335…2913) with a maximum amount of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals). The x402 challenge uses the "exact" scheme, meaning each call requires a one-shot micropayment. No API keys, rate limits, or subscriptions are needed — callers simply attach an X-PAYMENT header with a valid payment proof.
Documentation beyond the landing page is extremely sparse: the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The specific data returned by the statements endpoint (fields, formats, filtering options) is unknown from the available material. The endpoint is confirmed live (returns HTTP 402 with a well-formed x402 challenge).
Capabilities
Use cases
- —Retrieving account statement data on a per-request payment basis
- —Programmatic access to financial account records without subscription
- —Agent-driven financial data retrieval using x402 micropayments
Fit
Best for
- —Agents or apps needing on-demand account statement access without API keys
- —Developers experimenting with x402 micropayment-gated APIs
- —Low-volume consumers who prefer pay-per-call over subscriptions
Not for
- —Users needing detailed API documentation or guaranteed SLAs before integrating
- —High-volume bulk data export where per-request pricing becomes costly
- —Anyone requiring non-crypto payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/accounts/4/statements \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is confirmed live with a valid x402 challenge, but there is no OpenAPI spec, no request/response schema, no documentation, and no examples. The purpose of the 'statements' endpoint is only vaguely implied by its URL path. Nearly everything beyond pricing and liveness must be guessed.
Warnings
- —No OpenAPI or schema available — request and response formats are completely unknown
- —All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content
- —The specific endpoint path includes a hardcoded account ID (/accounts/4/statements) — unclear if this is parameterizable
- —No information on what 'statements' data is actually returned
- —Platform appears to be a demo or early-stage project with many listed endpoints but no substantive docs
Citations
- —Endpoint returns HTTP 402 with x402 challenge on Base network using USDChttps://lowpaymentfee.com/api/v1/accounts/4/statements
- —maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02https://lowpaymentfee.com/api/v1/accounts/4/statements
- —Platform advertises $0.02/request pricing with no API keys, no rate limitshttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/accounts/4/statements