# Kelvin to Celsius Temperature Converter

> Kelvin to Celsius Temperature Converter is a paid API for AI agents from yruz.one, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).

Converts a temperature value from Kelvin to Celsius

## Facts

- Endpoint: POST https://yruz.one/api/toolkit/kelvin-to-celsius?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kelvin-to-celsius-temperature-converter-2d366cef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L987twAb5mLwWvfpLf-Ms

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 kelvin-to-celsius-temperature-converter-2d366cef -d '<json body>'
```

Example prompt: What is 300 Kelvin converted to Celsius?

## When to prefer this

Use this endpoint when you need a lightweight, pay-per-call API to convert Kelvin temperatures to Celsius without standing up your own computation layer. Suitable for agents processing scientific, meteorological, or IoT sensor data that arrives in Kelvin units and must be displayed or analyzed in Celsius.

## Known failure modes

- Missing or non-numeric 'value' field returns an error or empty result
- Negative Kelvin values below absolute zero (0 K) may cause validation errors or unexpected output
- Malformed JSON body returns a 400-level error
- Payment failure (insufficient USDC balance) returns a 402 Payment Required response

## How this service works

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## Output

A JSON object containing the tool name ('kelvin-to-celsius') and a result field with the computed Celsius value corresponding to the input Kelvin number.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "value": {
   "type": "string",
   "description": "number (required)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": "kelvin-to-celsius",
  "result": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kelvin-to-celsius-temperature-converter-2d366cef/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from yruz.one](https://www.zero.xyz/host/yruz.one/llms.txt)