Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC, no API keys required.
What it does
This endpoint at `/api/v1/ach/116` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints are gated via the x402 protocol on the Base network, accepting USDC payments with no API keys, no rate limits, and no upfront commitments.
The specific `/api/v1/ach/116` endpoint is listed under the title "Premium API Access." However, the crawled documentation provides no further detail on what this particular route returns or what "ACH" refers to in this context — the site's landing page does not list it among its publicly advertised endpoints. The x402 challenge confirms the endpoint is live, accepts POST requests, and requires a maximum payment of 20,000 base units of USDC (0.02 USD) on the Base network, consistent with the platform's uniform $0.02/request pricing.
Because the provider's docs pages (`/docs`, `/api`, `/pricing`, `/README`) all render only a "Connect wallet" prompt with no additional content, there is no schema documentation, example request/response, or description of the data returned by this endpoint. Prospective callers should be aware that the actual functionality behind this route is undocumented.
Capabilities
Use cases
- —Programmatic access to an ACH-related resource with per-call USDC micropayments
- —Agent-driven API consumption without pre-registration or API key management
- —Integrating pay-as-you-go endpoints into automated workflows on Base
Fit
Best for
- —Developers or agents wanting zero-signup, pay-per-call API access
- —x402-compatible agents that can settle USDC on Base
- —Exploratory use where low per-request cost ($0.02) reduces risk
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —High-volume batch workloads where per-request pricing may add up
- —Anyone needing clarity on what data this specific endpoint actually returns
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ach/116 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is zero documentation on what this endpoint does, no request/response schema, and the docs pages are empty. The endpoint path ('ach/116') is not listed among the provider's advertised APIs, making its purpose opaque.
Warnings
- —No documentation available — all doc pages render only 'Connect wallet' with no content.
- —The endpoint /api/v1/ach/116 is not listed among the provider's publicly advertised APIs; its purpose is unknown.
- —No request or response schema is provided; callers cannot know what to send or what to expect.
- —The meaning of 'ACH' and '116' in this context is undocumented.
Citations
- —The platform charges $0.02 per request with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —The x402 challenge confirms the endpoint is live, accepts POST, and requires maxAmountRequired of 20000 base units of USDC (USD Coin) on Base.https://lowpaymentfee.com/api/v1/ach/116
- —Documentation pages (/docs, /api, /pricing, /README) render only a 'Connect wallet' prompt with no additional content.https://lowpaymentfee.com/docs