x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/ach/152

What it does

This endpoint at `/api/v1/ach/152` 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/152` path is not documented — the listing title is simply "Premium API Access" and the endpoint sits under an `/ach/` path prefix that does not appear in the site's publicly listed API catalog.

Pricing is $0.02 per request (maxAmountRequired of 20,000 base units of USDC with 6 decimals = $0.02). Payment is made via the x402 exact scheme with no API keys, no rate limits, and no upfront commitments. The asset used is USDC at contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base. The endpoint accepts HTTP POST and returns `application/json`.

Because the `/api/v1/ach/152` path is not listed among the site's documented APIs and no further documentation, request schema, or response schema is available, the actual functionality behind this endpoint is unclear. The broader platform advertises categories like metrics, reports, sentiment analysis, text summarization, price feeds, geocoding, and more — all at the same $0.02 price point — but none map to this specific ACH route. Prospective callers should be aware that the endpoint is live (returns a valid 402 challenge) but its behavior is undocumented.

Capabilities

x402-paymentusdc-basepay-per-requesthttp-postjson-response

Use cases

  • —Programmatic access to an ACH-related service with per-request USDC micropayments
  • —Agent-driven API consumption without API key management
  • —Integrating pay-as-you-go endpoints into automated workflows

Fit

Best for

  • —Developers wanting keyless, pay-per-request API access on Base
  • —AI agents that can settle x402 payments in USDC
  • —Users who prefer no subscriptions or rate limits

Not for

  • —Anyone needing documented request/response schemas before integration
  • —Use cases requiring free or fiat-only payment methods
  • —High-volume batch processing where per-call fees add up

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/152 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/ach/152
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, but the specific /api/v1/ach/152 path is not documented anywhere on the site. No request schema, response schema, or functional description is available. The listing is effectively a stub with only pricing and protocol details confirmed.

Warnings

  • —The /api/v1/ach/152 path does not appear in the site's public API catalog — its actual functionality is unknown.
  • —No request or response schema is documented; callers must discover behavior experimentally.
  • —Documentation pages (/docs, /api, /pricing, /README) all returned only a 'Connect wallet' prompt with no useful content.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 02:00:54Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

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