# klymax402 Unit Converter API

> klymax402 Unit Converter API is a paid API for AI agents from klymax402.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Converts a numeric value from one unit to another across categories like length, weight, temperature, volume, speed, and data storage

## Facts

- Endpoint: GET https://klymax402.com/api/unit-converter/api/convert
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/klymax402-unit-converter-api-5bcf7bd7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DMfKaCM3Fr8fSfLYBWmpP

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-unit-converter-api-5bcf7bd7
```

Example prompt: Can you convert 72 degrees Fahrenheit to Celsius for me?

## When to prefer this

Use this endpoint when an AI agent needs a quick, reliable unit conversion without maintaining its own conversion logic. Ideal for agents handling user queries about measurements, travel, cooking, fitness, or data storage where a simple numeric conversion is needed on-demand. At $0.003/call and no API key required, it's well-suited for lightweight agentic workflows that occasionally need unit math without bundling a full math library.

## Known failure modes

- Unsupported or misspelled unit name returns an error or empty result
- Incompatible unit pair (e.g. converting kg to miles) may return an error
- Missing required fields (value, from, to) result in a 400-level error
- Very large or very small numeric values may cause precision issues

## 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

Returns a JSON object with the original input (value and unit), the converted output (value and unit), the conversion formula used, and the detected or provided unit category (e.g. temperature, length, weight).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "to": {
   "type": "string",
   "description": "Target unit (e.g. mi, kg, fahrenheit, gal, km/h, GB)"
  },
  "from": {
   "type": "string",
   "description": "Source unit (e.g. km, lb, celsius, l, mph, MB)"
  },
  "value": {
   "type": "number",
   "description": "The numeric value to convert"
  },
  "category": {
   "type": "string",
   "description": "Optional category hint: length, weight, temperature, volume, speed, data"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "input": {},
  "output": {},
  "formula": "example",
  "category": "example"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/klymax402-unit-converter-api-5bcf7bd7/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)