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Use runStdioMcpServer to expose Corsair as a local MCP server that Claude Code spawns on demand.

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Install

npm install @corsair-dev/mcp

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Create the server script

mcp-server.ts
import 'dotenv/config';
import { runStdioMcpServer } from '@corsair-dev/mcp';
import { corsair } from './corsair';

runStdioMcpServer({ corsair }).catch((err) => {
    console.error('[corsair-mcp] Fatal:', err);
    process.exit(1);
});

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Configure Claude Code

Add a .mcp.json file at your project root. Claude Code reads this automatically when you open the project.
.mcp.json
{
  "mcpServers": {
    "corsair": {
      "command": "npx",
      "args": ["tsx", "mcp-server.ts"]
    }
  }
}
If your credentials aren’t loaded from a .env file, pass them via env:
.mcp.json
{
  "mcpServers": {
    "corsair": {
      "command": "npx",
      "args": ["tsx", "mcp-server.ts"],
      "env": {
        "CORSAIR_KEK": "your-key-here"
      }
    }
  }
}
Restart Claude Code after adding the config. You can verify the server is connected by running /mcp in the Claude Code prompt — corsair should appear in the list.

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Usage

Once connected, Claude Code can call Corsair tools directly. Start a conversation:
Setup corsair, then list all Slack channels.
Claude calls corsair_setup first to check credentials, then list_operations to discover available endpoints, then run_script to execute.