x402basequality 0.25

Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC, no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/ach/109

What it does

This endpoint at `/api/v1/ach/109` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network. The specific function of the `/api/v1/ach/109` path is not documented beyond the generic label "Premium API Access," so its exact purpose is unclear — the "ach" path segment suggests it may relate to ACH (Automated Clearing House) banking or payment data, but this is speculative.

The endpoint is live and returns a valid x402 challenge. It accepts POST requests and charges a maximum of 20,000 base units of USDC (0.02 USD per request, since USDC uses 6 decimals). Payment is made via the x402 `exact` scheme to a specified wallet address on Base. No API keys, rate limits, or upfront commitments are required — access is purely pay-as-you-go.

Documentation is extremely sparse. The site's 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 this endpoint actually returns. Prospective users should be aware that the exact functionality and response format are unknown from available materials.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keypost-endpoint

Use cases

  • —Accessing ACH or payment-related data on a per-request basis without subscription
  • —Integrating pay-per-call financial endpoints into agent workflows
  • —Testing x402 payment protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers experimenting with x402 protocol payments
  • —Agents needing low-cost, no-auth API access on Base
  • —One-off or low-volume requests where subscriptions are unnecessary

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —High-volume production workloads where per-request pricing may add up
  • —Anyone needing clarity on exact response schema before calling

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/109 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/ach/109
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 the endpoint actually does, what inputs it expects, or what it returns. No OpenAPI schema, no examples, and no meaningful docs pages. The listing is effectively a stub.

Warnings

  • —Exact functionality of /api/v1/ach/109 is undocumented — 'Premium API Access' is a generic label applied across the platform
  • —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no usable content
  • —No request or response schema available; callers cannot know what to send or expect back
  • —The 'ach' path segment may imply regulated financial data (ACH banking), but this is unconfirmed

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:52:04Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/GLFvEf
Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC, no API keys required. — Clawmart · Clawmart