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/194` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data & analytics, AI/ML, finance/Web3, and infrastructure utilities. All endpoints use the x402 payment protocol, settling in USDC on the Base network. The pricing is uniform at $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys, rate limits, or upfront commitments are required — callers simply attach an x402 payment header to each request.
The specific endpoint `/api/v1/ach/194` is listed under the title "Premium API Access" but its actual functionality is not documented beyond that label. The provider's landing page groups endpoints into categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure), but this particular path (`/ach/194`) does not appear in any of those listed categories. It accepts POST requests and returns `application/json`. Without further documentation or example responses, the exact data or service this endpoint provides cannot be confirmed.
The platform's docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional technical documentation, so details about request/response schemas, error handling, and the specific purpose of the `/ach/194` route remain unknown.
Capabilities
Use cases
- —Accessing a premium ACH-related data or processing endpoint with per-call USDC micropayments
- —Integrating pay-per-use API calls into agent workflows without managing API keys
- —Testing x402 payment protocol integrations on Base
Fit
Best for
- —Developers experimenting with x402 pay-per-call protocols
- —Agents that need keyless, on-demand API access settled in USDC on Base
- —Low-volume or sporadic usage where subscription pricing is wasteful
Not for
- —Users who need detailed API documentation or guaranteed SLAs before integrating
- —High-volume consumers who would benefit from bulk/subscription pricing
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ach/194 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base), but the specific functionality of /api/v1/ach/194 is undocumented. No request/response schemas, no examples, and the docs pages are empty beyond a wallet-connect prompt. The 'Premium API Access' title is generic and uninformative.
Warnings
- —The exact purpose and functionality of /api/v1/ach/194 is unknown — it does not appear in the provider's listed API catalog.
- —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no technical content.
- —No request or response schema is available; integration requires trial-and-error or contacting the provider.
- —The 'Premium API Access' title is generic and may be a placeholder.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/ach/194
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/ach/194
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The /api/v1/ach/194 path does not appear in the provider's listed API catalog on the landing pagehttps://lowpaymentfee.com
- —Documentation pages render only a 'Connect wallet' prompt with no technical contenthttps://lowpaymentfee.com/docs