# CBR Ruble Exchange Rates

> CBR Ruble Exchange Rates 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).

Fetches the latest official ruble exchange rates published by the Central Bank of Russia (CBR).

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/finance/ruble-cbr-rates?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/cbr-ruble-exchange-rates-4b421bae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-mjHPFXYgy1msmRrbqdG-

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 cbr-ruble-exchange-rates-4b421bae
```

Example prompt: What is the official ruble exchange rate for US dollars published by the Central Bank of Russia today?

## When to prefer this

Choose this endpoint when you need official, authoritative Russian ruble exchange rates as set by the Central Bank of Russia, without requiring API key signup. Ideal for finance agents, currency converters, or compliance tools that need CBR-sourced rates paid micro-per-call via USDC on Base.

## Known failure modes

- CBR data source unavailable or delayed — returns error or stale data
- Invalid schema parameter — may return unexpected format
- Payment not processed — 402 response requiring USDC payment on Base
- Rate data not yet published for today — may return previous business day rates

## 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

Returns a JSON object with ok and paid flags, and the current official ruble exchange rates as published by the Central Bank of Russia, potentially including rates for multiple currencies with their CBR-set values and effective date.

## 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/cbr-ruble-exchange-rates-4b421bae/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)