MCP connector and action

The Model Context Protocol (MCP) connector communicates with remote MCP servers to retrieve and call their tools. This connector is required to use external MCP tools in Elastic Agent Builder.

You can create an MCP connector in Stack Management > Connectors. For example:

×

MCP connectors have the following configuration properties:

Name

The name of the connector.

Server URL

The URL of the MCP server.

HTTP headers (under Additional settings)

A custom set of HTTP headers that you can use to connect to an MCP server.

Config

If you choose the config type, values in headers will be sent as plain text in requests.

Secret

If you choose the secret type, values in your headers will be encrypted in requests.

You can test connectors as you’re creating or editing the connector in Kibana. For example:

×

MCP connectors offer three actions:

test

Test the connection to the remote MCP server with any auth that was provided.

listTools

Call the MCP server's listTools endpoint. Returns a list of tools and their input and output schemas.

callTool

Call a specific MCP server tool.