# klymax402 Currency Converter API

> klymax402 Currency Converter API is a paid API for AI agents from klymax402.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Converts a specified amount from one currency to another, supporting fiat and crypto currencies, returning the converted amount and exchange rate.

## Facts

- Endpoint: GET https://klymax402.com/api/currency-converter/api/convert
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/klymax402-currency-converter-api-522576a6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fYIRZZ7Efzrmt46qbDM8G

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 klymax402-currency-converter-api-522576a6
```

Example prompt: Can you convert 500 US dollars to euros and tell me the current exchange rate?

## When to prefer this

Use this endpoint when you need a quick, low-cost fiat-to-fiat or fiat-to-crypto currency conversion with a single API call and no API key setup required. Ideal for AI agents that need on-demand exchange rates within a broader workflow, especially when paying per call via USDC on Base is preferable to maintaining a subscription.

## Known failure modes

- Unsupported or invalid currency code returns an error
- Amount field missing or non-numeric causes a bad request error
- Rate data temporarily unavailable for exotic currency pairs
- Network timeout from upstream rate provider

## How this service works

One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.

## Output

A JSON object containing the source currency, target currency, the original amount, the converted amount, the exchange rate used, the data source, and a timestamp indicating when the rate was fetched.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "to": {
   "type": "string",
   "description": "Target currency code (e.g., EUR, GBP, USD, BTC)"
  },
  "from": {
   "type": "string",
   "description": "Source currency code (e.g., USD, EUR, BTC, ETH)"
  },
  "amount": {
   "type": "number",
   "description": "Amount to convert"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "example",
  "from": "example",
  "rate": 1,
  "amount": 1,
  "source": "example",
  "timestamp": "example",
  "convertedAmount": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/klymax402-currency-converter-api-522576a6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from klymax402.com](https://www.zero.xyz/host/klymax402.com/llms.txt)