Set up Expo MCP in Claude Code
Build and manage React Native apps with Expo SDK guidance, EAS Build, EAS Update, simulator automation, and mobile development tools.
1
Locate the config file
Claude Code reads MCP server configuration from the following file:
~/.claude.jsonCreate this file if it does not already exist.
2
Add the configuration
You can configure Expo MCP using the CLI command or by editing the config file directly.
Option A: CLI command
bash
claude mcp add expo-mcp -e EXPO_TOKEN=YOUR_EXPO_TOKEN -- npx -y expo-mcpOption B: Config file
json
{
"mcpServers": {
"expo-mcp": {
"command": "npx",
"args": [
"-y",
"expo-mcp"
],
"env": {
"EXPO_TOKEN": "YOUR_EXPO_TOKEN"
}
}
}
}3
Set up environment variables
Expo MCP requires the following environment variables:
EXPO_TOKENOptionalExpo access token for EAS services
4
Verify it works
Restart Claude Code. Expo MCP should appear in your MCP server list with 15 tools available.
This server adds approximately 7,725 tokens to your context window for tool definitions.