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MCP (Model Context Protocol) servers connect your agents to external services, databases, and APIs. Agent Studio maintains a global registry of MCP servers that any agent can use. Register a server once, then enable it for individual agents from their configuration page.

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Viewing registered MCP servers

To view your registered MCP servers and their available tools:
  1. Select Add-ons from the left-hand navigation, then select MCP.
  2. Select an MCP server to expand it.
  3. Select List tools to discover the server’s available tools.
Add-ons MCP page showing registered servers with status indicators and plugin labels
To show MCP servers registered by plugins, open the Filter dropdown beside the search box at the top of the page and select Show plugin items.

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Registering an MCP server

To register an MCP server:
  1. Select Add-ons from the left-hand navigation, then select MCP.
  2. Select Add.
  3. Enter a name for the server.
  4. Select a transport method and configure the connection:
    Use stdio for MCP servers that run locally as a process on your machine.
    1. Enter the Command to start the server (for example, npx or uvx).
    2. Add any required Arguments for the command. Select Add argument to add additional arguments.
    3. (Optional) Add Environment variables as key-value pairs. Select Add environment variable to add additional variables.
    4. (Optional) Enter a Working Directory for the server process.
    5. Select Add to Catalog.

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Editing and deleting MCP servers

  1. Select Add-ons from the left-hand navigation, then select MCP.
  2. Select on the server’s row.
  3. Select Edit to modify the server’s configuration, or select Delete to remove it.
Deleting an MCP server removes it from all agents that use it. Those agents will no longer have access to the server’s tools.
Servers registered by plugins cannot be edited or deleted from this page. Manage them through the plugin’s own configuration.

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Enabling an MCP server for an agent

Once a server is registered in the global catalog, you can enable it for individual agents from the agent’s configuration page. See MCP for instructions.