x402basequality 0.30

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/113

What it does

This endpoint at `/api/v1/ach/113` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs settled via the x402 protocol on the Base network using USDC. The specific endpoint is listed under "Premium API Access" but its exact functionality is unclear — the path suggests ACH (Automated Clearing House) banking data or operations, though no documentation describes the input/output schema. The platform advertises a uniform $0.02 per request pricing model across all endpoints.

The x402 challenge confirms the endpoint is live, accepting POST requests and requiring payment of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals = $0.02) per call. Payment is made via the x402 `exact` scheme to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`, with a 300-second timeout. No API keys or accounts are needed — access is granted purely through the x402 payment header.

The broader platform lists endpoints across data/analytics, AI/ML (sentiment, summarization, classification, embeddings), finance/crypto (price feeds, exchange rates, gas estimates), and infrastructure utilities (geocoding, validation, conversion). However, documentation pages (`/docs`, `/pricing`, `/README`) all returned only a "Connect wallet" prompt with no substantive content, so the actual request/response formats for this or any endpoint remain undocumented.

Capabilities

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

Use cases

  • —Accessing ACH-related banking data or operations on a per-call basis
  • —Agent-driven financial workflows requiring no pre-registration
  • —Programmatic access to premium endpoints with crypto micropayments

Fit

Best for

  • —Developers or agents wanting zero-signup API access via x402
  • —Use cases requiring per-call payment without subscriptions
  • —Base network USDC holders needing on-demand API calls

Not for

  • —Users who need detailed API documentation before integrating
  • —High-volume use cases where per-call pricing is inefficient
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/ach/113 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/ach/113
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what this endpoint actually does, what inputs it accepts, or what it returns. All doc pages show only 'Connect wallet' with no content. The 'Premium API Access' label and '/ach/113' path are the only clues to functionality.

Warnings

  • —No documentation available — /docs, /pricing, and /README pages all return only a 'Connect wallet' prompt with no content
  • —The exact purpose and input/output schema of /api/v1/ach/113 are unknown; 'Premium API Access' is a generic label
  • —The 'ach' path segment suggests financial/banking operations which may be subject to regulatory requirements
  • —Cannot verify what data or service is actually delivered after payment

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:52:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/2Y4sGp
Pay-per-call ACH endpoint on Base via x402 — $0.02/request in USDC, no API keys required. — Clawmart · Clawmart