# The Stall Forex Rates — Live Currency Exchange Rates

> The Stall Forex Rates — Live Currency Exchange Rates is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.059/call, status unknown (last checked 2026-09-13).

Returns current foreign exchange (forex) rates for currency pairs, payable per-call in USDC on Base mainnet with no account required.

## Facts

- Endpoint: GET https://the-stall.intuitek.ai/cap/forex-rates
- Price: $0.059/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/the-stall-forex-rates-live-currency-exchange-rates-89c52837
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nG7tBzhG1JIqAitxnxhQg

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability the-stall-forex-rates-live-currency-exchange-rates-89c52837
```

Example prompt: What is the current exchange rate from USD to EUR?

## When to prefer this

Use this endpoint when you need real-time or near-real-time forex rates without setting up an account or API key — ideal for AI agents that need on-demand currency conversion data and can pay micro-amounts in USDC on Base. Prefer this over traditional forex APIs when operating in a permissionless, pay-per-call x402 environment.

## Known failure modes

- Unsupported or unrecognized currency pair returns an error
- Payment not received or insufficient USDC causes 402 response
- Malformed request parameters return a 400-level error
- Upstream forex data provider unavailable causes 503 or stale data
- Rate limiting if payment flow is not correctly handled

## How this service works

Real-time fiat foreign exchange rates. Base currency defaults to USD; returns rates for all 166 supported currencies, or a filtered subset. Sourced from open.er-api.com (free, no key, daily updates ~00:00 UTC). Supports any ISO 4217 base: EUR, GBP, JPY, KRW, CNY, AUD, etc. Use for: USD→KRW conversion when reading Korean exchange data, cross-border payment amounts, international price normalization, or any multi-currency DeFi workflow.

## Output

Returns the current exchange rate for the requested currency pair, likely including the rate value and possibly a timestamp or metadata about data freshness.

## Example request

```json
{
 "properties": "USD/EUR"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/the-stall-forex-rates-live-currency-exchange-rates-89c52837/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from the-stall.intuitek.ai](https://www.zero.xyz/host/the-stall.intuitek.ai/llms.txt)