# agent402.tools Calories to Electronvolts Converter

> agent402.tools Calories to Electronvolts Converter is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Converts a numeric calorie value to its equivalent in electronvolts (eV) as an energy unit conversion.

## Facts

- Endpoint: GET https://agent402.tools/api/convert/calories-to-electronvolts
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent402-tools-calories-to-electronvolts-converter-b31c913f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AYFdw4AjqnVnlpmo9ErcO

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 agent402-tools-calories-to-electronvolts-converter-b31c913f
```

Example prompt: Convert 250 calories to electronvolts for me.

## When to prefer this

Use this endpoint when you need to convert energy measured in calories (cal) into electronvolts (eV), particularly for scientific, physics, or chemistry contexts where SI-adjacent energy units are needed. Prefer this over building your own conversion logic when you want a reliable, API-based unit conversion with x402 micropayment support.

## Known failure modes

- Missing required 'value' query parameter returns an error
- Non-numeric or malformed value returns a validation error
- Very large or very small numbers may cause precision issues or overflow errors
- Payment failure or insufficient USDC balance returns a 402 Payment Required error

## How this service works

Convert calories to electronvolts (energy). Pass ?value=N.

## Output

Returns the electronvolt equivalent of the provided calorie value as a numeric result for energy unit conversion purposes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "value"
     ],
     "properties": {
      "value": {
       "type": "string",
       "description": "Numeric value to convert"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent402-tools-calories-to-electronvolts-converter-b31c913f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)