x402basequality 0.25

Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/ach/191

What it does

This endpoint at `/api/v1/ach/191` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data & analytics, AI/ML, finance, infrastructure, and more. All endpoints use the x402 payment protocol, settling in USDC on the Base network. The specific function of the `/api/v1/ach/191` path is not documented — the listing title is simply "Premium API Access" and the `/ach/` path segment suggests it may relate to ACH (Automated Clearing House) payment processing or data, but this is unconfirmed.

The endpoint is live and returns a valid x402 challenge. The price is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. Payment is made via the x402 `exact` scheme to a specified wallet address. The response MIME type is `application/json`.

Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what data or functionality this specific endpoint provides. The platform lists many endpoints across categories but provides no detailed documentation for any of them.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestjson-responseno-api-keyach-endpoint

Use cases

  • —Accessing ACH-related data or functionality on a per-request basis
  • —Integrating pay-per-call financial endpoints into agent workflows
  • —Testing x402 payment protocol integrations with low-cost endpoints

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents needing pay-per-call access without API key management
  • —Low-volume, on-demand API consumption with crypto settlement

Not for

  • —Users who need detailed API documentation before integrating
  • —High-volume use cases where per-request pricing may add up
  • —Anyone requiring fiat-only payment rails

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/191 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/ach/191
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what this endpoint actually does, what inputs it accepts, or what it returns. No OpenAPI schema, no examples, and no meaningful docs pages. The purpose of '/api/v1/ach/191' is entirely unclear.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content
  • —The specific function of /api/v1/ach/191 is unknown; the 'ach' path segment is suggestive but unconfirmed
  • —No request or response schema is provided
  • —No OpenAPI or machine-readable API specification found
  • —The platform lists many endpoint categories but none have detailed documentation

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 02:02:44Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/xfxTAN
Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC — Clawmart · Clawmart