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/166

What it does

This endpoint at `/api/v1/ach/166` 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/166` path is not documented — the listing title is simply "Premium API Access" and the path suggests it may relate to ACH (Automated Clearing House) payment processing or data, but no schema, input parameters, or response format are provided.

The x402 challenge is live and well-formed. It requires an exact payment of 20,000 base units of USDC (contract `0x8335…2913` on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises no API keys, no rate limits, and instant access — you simply attach the x402 payment header to each POST request. The payment timeout is 300 seconds.

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 spec, no request/response schema, and no usage examples. The exact functionality behind this endpoint cannot be confirmed from available materials.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestach-endpointno-api-key

Use cases

  • —Accessing ACH-related data or functionality via a single pay-per-call request
  • —Integrating low-cost payment-gated API calls into agent workflows
  • —Programmatic ACH lookups or processing without subscription commitments

Fit

Best for

  • —Developers needing low-friction, keyless API access settled in crypto
  • —AI agents that can attach x402 payment headers automatically
  • —Use cases requiring per-call billing with no minimum spend

Not for

  • —Users who need detailed API documentation or response schemas before integrating
  • —High-volume use cases where per-request pricing may add up versus flat-rate plans
  • —Anyone who cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/166 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/ach/166
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The x402 challenge is live and pricing is clear ($0.02/request in USDC on Base), but there is zero documentation on what this endpoint actually does — no input schema, no response schema, no examples, and no description beyond the generic title. The docs pages are empty. This is effectively a stub listing.

Warnings

  • —No documentation available — /docs, /api, /pricing, and /README all return only a wallet-connect prompt
  • —The exact function of /api/v1/ach/166 is unknown; 'ACH' in the path is the only hint
  • —No OpenAPI spec or request/response schema provided
  • —No examples of successful responses available

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 02:00:55Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

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