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

What it does

This endpoint at `/api/v1/ach/108` is part of the lowpaymentfee.com platform, which offers a collection of pay-per-request APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints use the x402 payment protocol, settling in USDC on the Base network. The specific function of the `/api/v1/ach/108` path is not documented — the provider labels it generically as "Premium API Access" — so its exact capabilities are unclear. It may relate to ACH (Automated Clearing House) payment processing or data lookup given the URL path segment, but this is speculative.

The endpoint is live and returns a valid x402 challenge. Pricing is $0.02 per request (20,000 base units of USDC with 6 decimals = $0.02), consistent with the platform's uniform pricing across all listed APIs. Payment is made via the x402 `exact` scheme to a specified wallet address on Base. No API keys, rate limits, or upfront commitments are advertised. The POST method is the expected HTTP method based on the probe's outputSchema.

Documentation is extremely sparse. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawled material. Without knowing what request body to send or what response to expect, integration requires experimentation or direct contact with the provider.

Capabilities

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

Use cases

  • Programmatic ACH-related data retrieval or payment initiation (speculative based on URL path)
  • Agent-driven pay-per-call API access without pre-registration or API keys
  • Integrating USDC micropayments for on-demand API consumption on Base

Fit

Best for

  • Developers wanting zero-signup, pay-as-you-go API access
  • AI agents with x402-compatible payment capabilities on Base
  • Users who prefer crypto-native micropayment settlement over subscriptions

Not for

  • Anyone needing well-documented APIs with clear request/response schemas
  • Production use cases requiring SLAs, rate limit guarantees, or support
  • Users who cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/108 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Endpoint

Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is essentially no documentation: no OpenAPI spec, no request/response schema, no examples, and the specific function of /api/v1/ach/108 is undocumented. The docs pages are empty beyond a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • The exact purpose and functionality of /api/v1/ach/108 is undocumented — 'Premium API Access' is a generic label applied across the platform.
  • No request body schema or response schema is available; integration requires guesswork.
  • All documentation pages (docs, pricing, API, README) returned only 'Connect wallet' with no substantive content.
  • If this endpoint relates to ACH payment processing, it may fall under financial regulation — verify compliance before use.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:52:10Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

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