Math MCP Tools for AI Agents

Your agent just told a user that 17 × 23 = 391. It's actually 391? No — it's 391. Wait. It's 391. See the problem? LLMs can't reliably multiply, factor, or check primes. They guess, and sometimes they're close enough to seem right. These MCP tools give your agent a real calculator.

All Math Tools (52)

Your agent gets access to 52 math tools via the /mcp/math/ endpoint. Here's the complete list:

Agent Scenarios

Here's how real agents use these tools:

{ "value": 79.99, "percentage": 25 }

{ "a": 144, "b": 60 }

{ "number": 97 }

MCP Setup

Add math tools to your agent in under 2 minutes. Choose your client:

Claude Desktop / Claude Code

Add this to your MCP config:

{
  "mcpServers": {
    "tinyfn-math": {
      "url": "https://api.tinyfn.io/mcp/math/",
      "headers": {
        "X-API-Key": "your-api-key"
      }
    }
  }
}

Cursor

Go to Settings > MCP and add a new server:

• Type: SSE
• URL: https://api.tinyfn.io/mcp/math/sse
• Headers: X-API-Key: your-api-key

Tip: Use the category-specific endpoint (/mcp/math/) for the best experience. The all-in-one endpoint (/mcp/all/) works too but has 500+ tools which some clients handle less efficiently.

When to Use These Tools

Use math MCP tools when your agent needs to:

• Guarantee correctness — when wrong answers have real consequences
• Process user data — when you're operating on actual user input, not hypothetical examples
• Maintain consistency — when the same input must always produce the same output

You don't need these tools for casual conversation or rough estimates. Use them when precision matters.

Frequently Asked Questions