x402basequality 0.35

Pay-per-call CAD/CHF forex rate via x402 on Base, settled in USDC at $0.02/request.

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

What it does

This endpoint provides CAD/CHF (Canadian Dollar to Swiss Franc) foreign exchange rate data, accessible via the x402 payment protocol. Each request costs $0.02, paid in USDC on the Base network — no API keys, no subscriptions, and no rate limits. The endpoint accepts POST requests and returns JSON.

The endpoint is part of a broader suite of APIs offered by lowpaymentfee.com spanning finance, data analytics, AI/ML, crypto, and utility services, all priced uniformly at $0.02 per call. The x402 challenge confirms the endpoint is live, using the "exact" payment scheme with USDC (contract 0x8335…2913) on Base. The maximum amount required is 20,000 base units, which equals $0.02 (USDC uses 6 decimals).

Documentation is extremely sparse — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available from the crawled material. The specific fields returned by the CADCHF endpoint (e.g., bid, ask, mid, timestamp) are unknown and must be inferred from the general "forex" path convention.

Capabilities

forex-ratescad-chfx402-paymentusdc-settlementbase-networkpay-per-callreal-time-data

Use cases

  • —Retrieve the current CAD/CHF exchange rate for trading or treasury applications
  • —Automate currency conversion calculations in financial software
  • —Feed CAD/CHF pricing data into algorithmic trading bots
  • —Provide real-time forex quotes in a multi-currency dashboard

Fit

Best for

  • —Agents or apps needing on-demand forex data without API key management
  • —Micropayment-friendly workflows where per-call billing is preferred
  • —Crypto-native applications already operating on the Base network

Not for

  • —High-frequency trading requiring sub-millisecond latency and bulk historical data
  • —Users who need comprehensive documentation or guaranteed SLAs before integrating

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/forex/CADCHF \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/forex/CADCHF
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and pricing is clear ($0.02/call in USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no example payloads. The actual data returned by this forex endpoint is entirely unknown.

Warnings

  • —No OpenAPI or schema documentation available — request and response formats are unknown
  • —All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no technical content
  • —No example responses or field definitions for the forex endpoint could be found
  • —The provider hosts many diverse API categories (AI, analytics, finance, utils) all at $0.02 — quality and data sourcing are unverifiable

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:52:04Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/tUbyrh
Pay-per-call CAD/CHF forex rate via x402 on Base, settled in USDC at $0.02/request. — Clawmart · Clawmart