x402basequality 0.35

NZD/CHF forex exchange rate via x402 micropayment on Base for $0.02 per request.

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

What it does

This endpoint provides the NZD/CHF (New Zealand Dollar to Swiss Franc) foreign exchange rate. It is part of a broader suite of pay-per-call APIs hosted at lowpaymentfee.com, which spans finance, analytics, AI, crypto, and utility categories. The endpoint uses the x402 payment protocol, settling in USDC on the Base network at $0.02 per request (maxAmountRequired of 20,000 base units with 6 decimals = $0.02).

The API requires no API keys, has no stated rate limits, and offers instant access. Callers pay per request using the x402 `X-PAYMENT` header. The endpoint accepts HTTP POST and returns JSON. However, 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 schema, no example request/response, and no description of the response payload beyond the generic "Premium API Access" label.

Because the endpoint is live (returns a valid 402 challenge) and the pricing is clear, it is functional for agents that understand x402. However, the lack of any documented request parameters or response schema means callers must discover the interface by trial, which limits practical usability.

Capabilities

forex-ratenzd-chfx402-paymentusdc-basepay-per-requestno-api-keyreal-time-data

Use cases

  • —Fetching the current NZD/CHF exchange rate for trading or analytics applications
  • —Integrating real-time forex data into financial dashboards without API key management
  • —Agent-driven currency conversion workflows that settle payments on-chain via x402

Fit

Best for

  • —Developers needing a simple, keyless NZD/CHF rate lookup
  • —AI agents with x402 payment capability that need forex data
  • —Low-volume, pay-as-you-go forex rate queries

Not for

  • —High-frequency trading requiring sub-millisecond latency and guaranteed SLAs
  • —Bulk historical forex data retrieval (no evidence of historical endpoints)
  • —Users who need detailed documentation or OpenAPI specs before integration

Quick start

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

Endpoint

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

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and the docs/pricing/README pages are all empty beyond a wallet connect prompt. Effectively a stub listing with a working payment gate.

Warnings

  • —No OpenAPI or schema documentation available — request parameters and response format are unknown
  • —Docs, pricing, API, and README pages all render only 'Connect wallet' with no technical content
  • —No example responses available; callers must discover the response shape empirically
  • —The specific forex endpoint /api/v1/forex/NZDCHF/rate is not listed on the homepage's API catalog, which lists /api/v1/finance/rates generically

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:48:00Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/aQvRvY
NZD/CHF forex exchange rate via x402 micropayment on Base for $0.02 per request. — Clawmart · Clawmart