# Number Base Converter — REST API endpoint `number-base`

Convert numbers between binary, octal, decimal, and hexadecimal.

- Category: conversion
- REST endpoint: POST https://api.findutils.com/api/tools/number-base/execute (no API keys, 60 req/min per IP)
- MCP: not exposed on the MCP server. See https://findutils.com/mcp/ for the tools that are.
- Reference page: https://findutils.com/api/number-base/

## Call the endpoint (verified example)

```bash
curl -X POST https://api.findutils.com/api/tools/number-base/execute \
  -H "Content-Type: application/json" \
  -d '{
    "value": "255",
    "from": "decimal"
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/number-base
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `value` | string | yes | The number to convert (as string to handle large values). |
| `from` | string (binary \| octal \| decimal \| hexadecimal \| bin \| oct \| dec \| hex) | yes | Source base. |

Example arguments (verified):

```json
{
  "value": "255",
  "from": "decimal"
}
```

OpenAPI 3.1 spec: https://findutils.com/api/openapi.json · Interactive docs: https://findutils.com/api/docs/

---
Full catalog: GET https://api.findutils.com/api/tools · https://findutils.com/api/ · https://findutils.com/llms.txt