# x402-toolbox FX Symbols Lookup

> x402-toolbox FX Symbols Lookup is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Returns a list of available foreign exchange currency symbols and codes for use in FX rate queries.

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/finance/fx-symbols?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-fx-symbols-lookup-a3077cd1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ogctEYJoQdrzIwNb2I9FB

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 x402-toolbox-fx-symbols-lookup-a3077cd1
```

Example prompt: Can you fetch me the full list of supported foreign exchange currency symbols I can use to query FX rates?

## When to prefer this

Use this endpoint when you need a definitive list of currency symbols supported by the x402-toolbox finance suite before making FX rate queries. It is a cheap ($0.001 USDC) reference call requiring no API key — ideal for agent workflows that need to validate or enumerate available currencies programmatically using x402 micropayments.

## Known failure modes

- Payment not included or insufficient USDC — returns HTTP 402 with payment requirements
- Invalid schema parameter format — may return an error or ignore the parameter
- Service unavailable or Cloudflare Worker timeout — returns 5xx error
- Empty or partial symbol list if the underlying FX data source is degraded

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

A JSON response with a list of supported foreign exchange currency symbols and codes that can be used to query exchange rates or construct FX pairs on this platform.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-fx-symbols-lookup-a3077cd1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)