# ApexAPI Energy Unit Converter

> ApexAPI Energy Unit Converter is a paid API for AI agents from apex-api-gamma.vercel.app, paid per call via x402, $0.196438/call, status unknown (last checked 2026-09-15).

Converts energy values between different units (e.g., joules, calories, kilowatt-hours, BTUs) via a pay-per-call API using USDC on Base.

## Facts

- Endpoint: POST https://apex-api-gamma.vercel.app/api/tools/convert/energy
- Price: $0.196438/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apexapi-energy-unit-converter-ec0b9e0c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pidXRiD7gB6Xk2JWM2lKC

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 apexapi-energy-unit-converter-ec0b9e0c -d '<json body>'
```

Example prompt: Convert 2500 BTUs to kilowatt-hours for me.

## When to prefer this

Use this endpoint when an agent needs to programmatically convert energy quantities between units (joules, calories, BTUs, kWh, etc.) without requiring an API key, paying per call in USDC on Base. Prefer over manual lookup when integrating energy conversion into automated workflows or when no free alternative is available.

## Known failure modes

- Unrecognized energy unit returns an error or empty result
- Malformed query string causes 400 bad request
- Payment failure (insufficient USDC balance) causes 402 Payment Required
- Ambiguous unit abbreviation may yield incorrect conversion
- Service downtime returns 500 error

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns the converted energy value in the target unit, along with relevant conversion metadata such as the original value, source unit, and target unit.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apexapi-energy-unit-converter-ec0b9e0c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apex-api-gamma.vercel.app](https://www.zero.xyz/host/apex-api-gamma.vercel.app/llms.txt)