# Agent402 UK FX Rates

> Agent402 UK FX Rates is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.002/call, status down (last checked 2026-09-15).

Returns ECB foreign exchange rates for a given base currency and optional target currencies, sourced from Frankfurter and cached.

## Facts

- Endpoint: GET https://agent402.co.uk/v1/data/fx
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent402-uk-fx-rates-09a97b13
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f1LTffuMKRh4oxbBRwQtb

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 agent402-uk-fx-rates-09a97b13
```

Example prompt: What's the current ECB exchange rate from USD to EUR and GBP?

## When to prefer this

Choose this endpoint when you need official ECB foreign exchange rates without managing an API key, want low-cost cached FX data, or need to fetch rates for multiple currencies simultaneously. Prefer it over commercial FX APIs when ECB reference rates are sufficient and cost minimisation matters.

## Known failure modes

- Unsupported or invalid currency code returns an error response
- Frankfurter upstream outage may cause stale or failed responses
- Malformed query parameters (e.g. bad symbols format) may result in 400 errors
- Cache may serve slightly stale rates if ECB has not yet published the day's data

## How this service works

Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.

## Output

A JSON object containing the base currency and a map of quote currency codes to their current ECB exchange rates, sourced from Frankfurter and cached for performance.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "base": {
       "type": "string",
       "description": "Base currency (default USD)"
      },
      "symbols": {
       "type": "string",
       "description": "Comma-separated quote currencies"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "base": "USD",
  "date": "2026-08-08",
  "rates": {
   "EUR": 0.92,
   "GBP": 0.78
  },
  "source": "frankfurter.app (ECB)"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent402-uk-fx-rates-09a97b13/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.co.uk](https://www.zero.xyz/host/agent402.co.uk/llms.txt)