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BEAD

Number Base Converter

Convert numbers between binary, octal, decimal, hex, and arbitrary bases 2–36.

DeveloperConverters
Base

🔒 Runs entirely in your browser.

</>Use this tool programmaticallycurl · JavaScript · MCP

Same tool, callable from any HTTP client or from Claude (via MCP). Anonymous: 100 req/day per IP. Sign up for 1,000 req/day.

curl
curl https://api.b-e-a-d.com/tools/base-converter/run \
  -H "Content-Type: application/json" \
  -d '{
  "input": "your input here",
  "fromBase": 2
}'
JavaScript (fetch)
const res = await fetch("https://api.b-e-a-d.com/tools/base-converter/run", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
  "input": "your input here",
  "fromBase": 2
}),
});
const data = await res.json();
console.log(data.result);
MCP (Claude Desktop / Claude Code)
# In Claude Desktop / Claude Code, add to your MCP config:
{
  "mcpServers": {
    "bead": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.b-e-a-d.com"]
    }
  }
}

# Then ask Claude to call:
mcp__bead__bead_base_converter

Full reference: developer docs · OpenAPI spec

About this tool

Uses BigInt under the hood so it handles values well beyond Number.MAX_SAFE_INTEGER. Negative numbers are supported. The arbitrary-base field accepts radixes from 2 to 36; digits above 9 use letters a–z.

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