The Infisical Model Context Protocol (MCP) server enables integration with Infisical APIs through function calling. This implementation allows you to interact with Infisical's secret management functionality using various tools that follow the MCP specification.
Before using the MCP server, configure the following environment variables for authentication:
INFISICAL_UNIVERSAL_AUTH_CLIENT_ID
: Your Machine Identity universal auth client IDINFISICAL_UNIVERSAL_AUTH_CLIENT_SECRET
: Your Machine Identity universal auth client secretINFISICAL_HOST_URL
: (Optional) Custom host URL if you're self-hosting Infisical or using dedicated infrastructure. Defaults to https://app.infisical.com
To run the Infisical MCP server using npx:
npx -y @infisical/mcp
To use the Infisical MCP server with Claude Desktop, add the following configuration to your claude_desktop_config.json
:
{
"mcpServers": {
"infisical": {
"command": "npx",
"args": ["-y", "@infisical/mcp"],
"env": {
"INFISICAL_HOST_URL": "https://<custom-host-url>.com", // Optional
"INFISICAL_UNIVERSAL_AUTH_CLIENT_ID": "<machine-identity-universal-auth-client-id>",
"INFISICAL_UNIVERSAL_AUTH_CLIENT_SECRET": "<machine-identity-universal-auth-client-secret"
}
}
}
}
The Infisical MCP server provides the following tools:
You can debug the server using the MCP Inspector tool:
Build the server:
npm run build
Start the MCP Inspector and server:
npx @modelcontextprotocol/inspector node dist/index.js
Set the required environment variables as described above
Open the MCP Inspector UI in your browser and click Connect
View all available tools and test them individually
To add this MCP server to Claude Code, run this command in your terminal:
claude mcp add-json "infisical" '{"command":"npx","args":["-y","@infisical/mcp"],"env":{"INFISICAL_HOST_URL":"https://<custom-host-url>.com","INFISICAL_UNIVERSAL_AUTH_CLIENT_ID":"<machine-identity-universal-auth-client-id>","INFISICAL_UNIVERSAL_AUTH_CLIENT_SECRET":"<machine-identity-universal-auth-client-secret>"}}'
See the official Claude Code MCP documentation for more details.
There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json
file so that it is available in all of your projects.
If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json
file.
To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".
When you click that button the ~/.cursor/mcp.json
file will be opened and you can add your server like this:
{
"mcpServers": {
"infisical": {
"command": "npx",
"args": [
"-y",
"@infisical/mcp"
],
"env": {
"INFISICAL_HOST_URL": "https://<custom-host-url>.com",
"INFISICAL_UNIVERSAL_AUTH_CLIENT_ID": "<machine-identity-universal-auth-client-id>",
"INFISICAL_UNIVERSAL_AUTH_CLIENT_SECRET": "<machine-identity-universal-auth-client-secret>"
}
}
}
}
To add an MCP server to a project you can create a new .cursor/mcp.json
file or add it to the existing one. This will look exactly the same as the global MCP server example above.
Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.
The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.
You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.
To add this MCP server to Claude Desktop:
1. Find your configuration file:
~/Library/Application Support/Claude/claude_desktop_config.json
%APPDATA%\Claude\claude_desktop_config.json
~/.config/Claude/claude_desktop_config.json
2. Add this to your configuration file:
{
"mcpServers": {
"infisical": {
"command": "npx",
"args": [
"-y",
"@infisical/mcp"
],
"env": {
"INFISICAL_HOST_URL": "https://<custom-host-url>.com",
"INFISICAL_UNIVERSAL_AUTH_CLIENT_ID": "<machine-identity-universal-auth-client-id>",
"INFISICAL_UNIVERSAL_AUTH_CLIENT_SECRET": "<machine-identity-universal-auth-client-secret>"
}
}
}
}
3. Restart Claude Desktop for the changes to take effect