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/45

What it does

lowpaymentfee.com hosts a collection of pay-per-request API endpoints gated by the x402 payment protocol on the Base network. This specific endpoint, `/api/v1/ach/45`, is listed under the umbrella title "Premium API Access." The site advertises a flat $0.02 per request across all its endpoints, paid in USDC (USD Coin) on Base with no API keys, no rate limits, and no minimum commitments.

The x402 challenge confirms the endpoint is live and accepts POST requests. It requires an exact payment of 20,000 base units of USDC (contract `0x8335…2913` on Base, 6 decimals → $0.02) sent to `0x1A2B…85F3`. The timeout for payment settlement is 300 seconds. The response MIME type is `application/json`.

However, the actual functionality behind `/api/v1/ach/45` is unclear. The path suggests ACH (Automated Clearing House) banking-related functionality, but the site's landing page does not list this specific endpoint among its documented categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). No request/response schema, parameter documentation, or usage examples are available for this endpoint. The docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional content.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responseno-api-keyach

Use cases

  • —Programmatic ACH-related lookups or operations paid per call in USDC
  • —Agent-driven financial workflows requiring no API key signup
  • —Integrating low-cost pay-per-use banking endpoints into automated pipelines

Fit

Best for

  • —Developers wanting zero-signup, pay-as-you-go API access
  • —AI agents with x402-compatible wallets on Base
  • —Low-volume or experimental use cases where $0.02/call is acceptable

Not for

  • —Users needing detailed API documentation or guaranteed SLAs before integrating
  • —High-volume production workloads where per-call crypto payments add latency
  • —Anyone requiring non-crypto payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/45 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/ach/45
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation for what /api/v1/ach/45 actually does — no request schema, no response schema, no examples, and the endpoint is not listed on the site's own landing page. Docs pages are empty beyond a wallet-connect prompt.

Warnings

  • —The endpoint /api/v1/ach/45 is not listed among the provider's documented APIs on the landing page — its purpose is unknown.
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no usable content.
  • —The 'ACH' path component suggests banking/financial functionality which may be subject to regulatory requirements — verify compliance before use.
  • —No request or response schema is available; callers cannot know what parameters to send or what to expect back.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:06:47Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/BjeaC7
Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC — Clawmart · Clawmart