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✨ Now includes Alex, an AI assistant — ask any conversion in plain English

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MCP · Model Context Protocol

Developer API & AI Tool Integration

All Convert All converters are available as an MCP (Model Context Protocol) server. Connect Claude Desktop, Claude Code, or any MCP-compatible AI agent to get instant, accurate unit conversions and live exchange rates.

MCP Endpointhttps://mcp.unitconvertall.com/mcp

Quick Start — Claude Desktop

Add this to your claude_desktop_config.json file to connect Convert All to Claude Desktop:

{
  "mcpServers": {
    "unitconvertall": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.unitconvertall.com/mcp"]
    }
  }
}

Then restart Claude Desktop. You can now ask Claude things like: "How many liters are in 5 gallons?" and Claude will call our converter automatically.

Available Tools

convert_distance

Convert between distance/length units.

Supported units
mile, kilometer, meter, foot, inch, yard, nautical_mile, centimeter, millimeter
Example call
{
  "from": "mile",
  "to": "kilometer",
  "value": 26.2
}
convert_weight

Convert between weight and mass units.

Supported units
kilogram, pound, ounce, stone, gram, tonne, milligram
Example call
{
  "from": "pound",
  "to": "kilogram",
  "value": 150
}
convert_temperature

Convert between temperature scales.

Supported units
celsius, fahrenheit, kelvin, rankine
Example call
{
  "from": "fahrenheit",
  "to": "celsius",
  "value": 98.6
}
convert_volume

Convert between volume units.

Supported units
liter, milliliter, gallon_us, gallon_uk, cup_us, fluid_ounce_us, pint_us, quart_us
Example call
{
  "from": "gallon_us",
  "to": "liter",
  "value": 1
}
convert_data_storage

Convert between data storage units (decimal and binary).

Supported units
bit, byte, kilobyte, megabyte, gigabyte, terabyte, kibibyte, mebibyte, gibibyte, tebibyte
Example call
{
  "from": "gigabyte",
  "to": "mebibyte",
  "value": 1
}
get_exchange_rate

Get live currency exchange rates from the European Central Bank.

Supported units
USD, EUR, GBP, JPY, CHF, CAD, AUD, CNY, INR, and 20+ more ECB currencies
Example call
{
  "from": "USD",
  "to": "EUR",
  "value": 100
}

Example AI Prompts

Once connected, you can ask your AI assistant these questions and it will use our tools:

  • "How far is a marathon in kilometers?"
  • "Convert 70 kg to pounds and stones."
  • "What is 37°C in Fahrenheit?"
  • "How many liters are in 5 gallons?"
  • "Convert 256 GB to GiB."
  • "What is 1000 USD in EUR and JPY right now?"

Protocol Details

TransportStreamable HTTP (SSE)
MCP version2025-03-26
AuthNone required
Rate limit60 req/min per IP
Currency sourceEuropean Central Bank (ECB)
Update frequencyCurrency: daily · Units: static

Embed Any Converter

All 40+ converters can also be embedded in any website via iframe — no account required:

<iframe
  src="https://unitconvertall.com/distance-converter"
  width="100%" height="520"
  style="border:none;border-radius:12px;"
  loading="lazy">
</iframe>

Deep-link format: https://unitconvertall.com/{converter}?from={unit}&to={unit}&value={number}