Claude Desktop Exa Search crawling_exa
How to: Claude Desktop Exa Search crawling_exa
Add Exa Search to Claude Desktop
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01
Open ~/Library/Application Support/Claude/claude_desktop_config.json and merge this in. Keep any servers already there.
{
"mcpServers": {
"exa-mcp-server": {
"command": "npx",
"args": [
"-y",
"exa-mcp-server"
],
"env": {
"EXA_API_KEY": "<EXA_API_KEY>"
}
}
}
}
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02
Save the file and restart Claude Desktop.
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03
Ask for something crawling_exa does. Claude Desktop lists the server's tools on connect and calls crawling_exa itself — you do not invoke it by name.
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04
If nothing happens, check the server is running and that Exa Search's identifier in your config matches the one above exactly.
Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs
Set these first
Exa Search will not start until these are set, so crawling_exa never becomes available.
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EXA_API_KEY
Same tool, other clients
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.