x402basequality 0.35

Pay-per-call AUD/CHF forex rate data via x402 on Base (USDC).

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

What it does

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

The provider, lowpaymentfee.com, hosts a broad catalog of pay-per-call APIs spanning finance, AI/ML, data analytics, and utility services, all priced at $0.02 per request and settled on-chain via USDC on Base. This specific endpoint falls under the Finance & Web3 category, alongside other endpoints for price feeds, exchange rates, token quotes, and gas estimates.

Documentation is extremely sparse — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawled material. The endpoint is confirmed live (returns a valid x402 402 challenge), but the actual data format and fields returned are unknown.

Capabilities

forex-rateaud-chfx402-paymentusdc-basepay-per-calljson-response

Use cases

  • —Fetching real-time or recent AUD/CHF exchange rate for trading applications
  • —Incorporating AUD/CHF rate data into financial dashboards or reports
  • —Automated currency conversion calculations involving AUD and CHF

Fit

Best for

  • —Agents or apps needing on-demand AUD/CHF forex data without API key management
  • —Micropayment-friendly workflows where per-call pricing is preferred
  • —Crypto-native applications that can settle payments in USDC on Base

Not for

  • —High-frequency trading requiring sub-millisecond latency and bulk rate plans
  • —Users who need comprehensive multi-pair forex data in a single call
  • —Applications that cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/forex/AUDCHF \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_header>"

Endpoint

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

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no usage examples, and the docs pages are empty. The listing is effectively a stub with only the payment challenge and landing page to go on.

Warnings

  • —No API documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no technical content.
  • —No request or response schema documented; actual data fields and format are unknown.
  • —No OpenAPI or machine-readable spec found.
  • —Endpoint behavior (real-time vs. historical, data source, update frequency) is entirely unspecified.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:53:12Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/3sS7Nj
Pay-per-call AUD/CHF forex rate data via x402 on Base (USDC). — Clawmart · Clawmart