MCP Jenkins Server

MCP Jenkins

The Model Context Protocol (MCP) is an open-source implementation that bridges Jenkins with AI language models following Anthropic's MCP specification. This project enables secure, contextual AI interactions with Jenkins tools while maintaining data privacy and security.

Installation

Choose one of these installation methods:

# Using uv (recommended)
pip install uv
uvx mcp-jenkins

# Using pip
pip install mcp-jenkins
mcp-jenkins

# Docker
docker pull ghcr.io/lanbaoshen/mcp-jenkins:latest
docker run -p 9887:9887 --rm ghcr.io/lanbaoshen/mcp-jenkins:latest --transport streamable-http

Line Arguments

When using command line arguments, you can specify the Jenkins server details as follows:

# Simple streamable-http example
uvx mcp-jenkins --transport streamable-http

Argument	Description	Required
--env-file	Path to a .env file to load configuration from. See Environment Variables / .env file below.	No
--jenkins-url	The URL of the Jenkins server. (Http app can set it via headers x-jenkins-url)	No
--jenkins-username	The username for Jenkins authentication. (Http app can set it via headers x-jenkins-username)	No
--jenkins-password	The password or API token for Jenkins authentication. (Http app can set it via headers x-jenkins-password)	No
--jenkins-timeout	Timeout for Jenkins API requests in seconds. Default is 5 seconds.	No
--jenkins-verify-ssl/--no-jenkins-verify-ssl	Whether to verify SSL certificates when connecting to Jenkins. Default is to verify.	No
--jenkins-session-singleton/--no-jenkins-session-singleton	Whether to use a singleton Jenkins client for all requests in the same session. Default is True.	No
--read-only	Whether to enable read-only mode. Default is False	No
--transport	Transport method to use for communication. Options are stdio, sse or streamable-http. Default is stdio.	No
--host	Host address for streamable-http transport. Default is 0.0.0.0	No
--port	Port number for streamable-http transport. Default is 9887.	No

Environment Variables / .env file

Instead of passing credentials on the command line, you can set them as environment variables, or put them in a .env file:

JENKINS_URL=https://jenkins.example.com
JENKINS_USERNAME=alice
JENKINS_PASSWORD=xxxx
JENKINS_TIMEOUT=5
JENKINS_VERIFY_SSL=true

If a .env file is present in the current directory (or a parent directory), it is loaded automatically — no flag needed:

uvx mcp-jenkins --transport streamable-http

To load a .env file from a specific location, use --env-file:

uvx mcp-jenkins --env-file /path/to/.env --transport streamable-http

Values already set in the real environment take precedence over the .env file, and any --jenkins-* CLI flag takes precedence over both.

Configuration and Usage

Jetbrains Github Copilot

1. Open Jetbrains Settings
2. Navigate to Github Copilot > MCP > Configure
3. Add the following configuration:

{
  "servers": {
    "my-mcp-server": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-jenkins",
        "--jenkins-url=xxx",
        "--jenkins-username=xxx",
        "--jenkins-password=xxx"
      ]
    }
  }
}

VSCode Copilot Chat

1. Create .vscode folder with mcp.json file in you workspace for local setup or edit settings.json trough settings menu.
2. Insert the following configuration:

• SSE mode

{
    "servers": {
        "jenkins": {
            "url": "http://localhost:9887/sse",
            "type": "sse"
        }
    }
}

• Streamable-Http mode

{
    "servers": {
        "mcp-jenkins-mcp": {
            "autoApprove": [],
            "disabled": false,
            "timeout": 60,
            "type": "streamableHttp",
            "url": "http://localhost:9887/mcp"
        }
    }
}

Run the Jenkins MCP server with the following command:

uvx mcp-jenkins \
  --jenkins-url xxx \
  --jenkins-username xxx  \
  --jenkins-password xxx \
  --transport sse

Health Check Endpoint

When running with --transport streamable-http or --transport sse, the server exposes a plain HTTP liveness endpoint:

GET /healthz  ->  200 OK

It always returns 200 and bypasses the x-jenkins-* auth headers, so it is safe to use directly as a Kubernetes liveness/readiness probe without any Jenkins credentials. Example probe:

livenessProbe:
  httpGet:
    path: /healthz
    port: 9887
  initialDelaySeconds: 5
  periodSeconds: 10

Note: this is a liveness check only — it does not verify connectivity to the upstream Jenkins server.

Available Tools

Tool	Description
get_item	Get a specific item by name.
get_item_config	Get the configuration of a specific item.
get_item_parameters	Get the parameters of a specific item.
get_all_items	Get all items in Jenkins.
query_items	Query items based on pattern.
build_item	Build a item.
get_all_nodes	Get all nodes in Jenkins.
get_node	Get a specific node by name.
get_node_config	Get the configuration of a specific node.
get_all_queue_items	Get all queue items in Jenkins.
get_queue_item	Get a specific queue item by ID.
cancel_queue_item	Cancel a specific queue item by ID.
get_build	Get a specific build by job name and build number.
get_build_scripts	Get scripts associated with a specific build.
get_build_console_output	Get the console output of a specific build.
get_build_parameters	Get the parameters of a specific build.
get_build_test_report	Get the test report of a specific build.
get_running_builds	Get all currently running builds in Jenkins.
stop_build	Stop a specific build by job name and build number.
get_pending_inputs	Get the pending input steps of a build paused for input.
submit_input	Proceed with or abort a pipeline input step of a build.
get_all_build_artifacts	List the artifacts of a specific build.
get_build_artifact	Download an artifact from a specific build.
get_build_artifact_url	Get the direct URL of an artifact from a specific build.
get_view	Get a specific view by name.
get_all_views	Get the configuration of a specific view.
get_all_plugins	Get all installed plugins.
get_plugin	Get a specific plugin by short name.
get_plugins_with_problems	Get plugins with problems (missing dependencies, version mismatch, etc.).
get_plugins_with_backup	Get plugins that can be downgraded.
get_plugins_with_updates	Get plugins that have available updates.
get_plugin_dependency_graph	Get dependency graph for a plugin in Graphviz format.
run_groovy_script	Execute an arbitrary Groovy script on Jenkins.

Note: get_pending_inputs reads the wfapi endpoint served by the pipeline-rest-api plugin (bundled with pipeline-stage-view). submit_input only needs that plugin when input_id is omitted — pass input_id explicitly and it works on any Jenkins with the pipeline-input-step plugin.

Contributing

CONTRIBUTING.md

License

Licensed under MIT - see LICENSE file. This is not an official Jenkins product.

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