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/58

What it does

This endpoint at `/api/v1/ach/58` is part of the lowpaymentfee.com platform, which offers a collection 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/58` path is not documented — the listing title is simply "Premium API Access" and no schema, parameter descriptions, or example responses are provided. The `ach` path segment suggests it may relate to ACH (Automated Clearing House) banking or payment functionality, but this is speculative.

Pricing is $0.02 per request (the x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC, which at 6 decimals equals $0.02). Payment is made inline via the X-PAYMENT header using the x402 exact scheme — no API keys, accounts, or rate limits are advertised. The endpoint accepts POST requests and returns `application/json`.

Documentation is extremely thin. The `/docs`, `/api`, `/pricing`, and `/README` pages all render only a "Connect wallet" prompt with no additional content. The landing page lists many API paths across categories but provides no request/response schemas, parameter details, or usage examples for any of them. The actual capability behind this specific endpoint remains unclear.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keyjson-responsepost-method

Use cases

  • —Programmatic access to an ACH-related service with per-call USDC payment
  • —Agent-driven API consumption without pre-registration or API keys
  • —Integrating pay-as-you-go endpoints into automated workflows

Fit

Best for

  • —Developers wanting zero-signup, pay-per-use API access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over subscription billing

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/58 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/ach/58
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (returns a valid x402 402 challenge), but there is virtually no documentation: no request/response schema, no parameter descriptions, no examples, and the docs pages are empty. The purpose of the /api/v1/ach/58 path is unclear. This is effectively a stub listing.

Warnings

  • —The specific function of /api/v1/ach/58 is undocumented — the 'ach' path suggests banking/payment functionality but this is unconfirmed
  • —All documentation pages (/docs, /api, /pricing, /README) return only a 'Connect wallet' prompt with no useful content
  • —No request or response schema is available for this endpoint
  • —The endpoint path does not appear in the landing page's listed APIs, raising questions about its status
  • —If this endpoint relates to ACH banking transactions, it may fall under financial regulation

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 02:02:50Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/uDBhp4
Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC, no API keys required. — Clawmart · Clawmart