Jenkins MCP Server

A Model Context Protocol (MCP) server that provides Jenkins CI/CD integration for Cursor IDE and other MCP-compatible AI assistants.

Features

• 27 MCP tools covering jobs, builds, pipelines, nodes, credentials, views, system info, and more
• 3 access modes -- read-only, standard, admin -- so you can share safely with any audience
• Job creation from templates -- create Freestyle, Pipeline, Pipeline-SCM, and Multibranch jobs without writing XML
• CLI tool for quick Jenkins queries from the terminal
• Python 3.7+ compatible

Quick Start

# 1. Install (from PyPI)
pip install jenkins-mcp-tools

# Or install from GitHub
# pip install git+https://github.com/saurprince/jenkins-mcp-server.git

# 2. Test connection
jenkins-mcp-server --test \
  --url https://your-jenkins.example.com:8443 \
  --username your-username \
  --token your-api-token \
  --no-verify-ssl

# 3. Add to Cursor (see "Cursor IDE Integration" below)

Installation

From GitHub (Recommended)

pip install git+https://github.com/saurprince/jenkins-mcp-server.git

# Or via SSH
pip install git+ssh://git@github.com/saurprince/jenkins-mcp-server.git

From Source

git clone https://github.com/saurprince/jenkins-mcp-server.git
cd jenkins-mcp-server
pip install .

Sharing with Your Team

There are several ways to distribute the server to others:

Option A: Install from Git

Anyone with access to the GitHub repo can install directly:

pip install git+https://github.com/saurprince/jenkins-mcp-server.git

Option B: Share a wheel file

Build a wheel and send the .whl file to teammates:

pip install build
python -m build --wheel
# Share dist/jenkins_mcp_server-2.0.0-py3-none-any.whl

Recipients install with:

pip install jenkins_mcp_server-2.0.0-py3-none-any.whl

Option C: Private PyPI / Artifactory

Upload the wheel to a private package index:

pip install twine
twine upload --repository internal dist/*.whl

Then anyone can pip install jenkins-mcp-server from the internal index.

Option D: Public PyPI

pip install twine
twine upload dist/*.whl

Then anyone in the world can pip install jenkins-mcp-tools.

Access Modes

The server supports three access modes, controlled via --mode flag or JENKINS_MODE environment variable:

Mode	Tools Available	Use Case
read-only	20 read-only tools	Safe for analysts, viewers, dashboards
standard (default)	22 tools (read + trigger/stop builds)	Day-to-day developer use
admin	All 27+ tools (read + write + create/delete)	Jenkins administrators

Read-only mode (safe sharing)

jenkins-mcp-server --mode read-only --url URL --username USER --token TOKEN

In read-only mode, any attempt to call trigger_build, stop_build, create_job, etc. returns a clear error message explaining which mode is required.

Standard mode (default)

jenkins-mcp-server --url URL --username USER --token TOKEN

Allows triggering and stopping builds, but not creating, deleting, or configuring jobs.

Admin mode

jenkins-mcp-server --mode admin --url URL --username USER --token TOKEN

Full access including job creation, deletion, configuration changes, folder management, and build replay.

Configuration

Environment Variables

Variable	Description	Default
JENKINS_URL	Jenkins server URL	(required)
JENKINS_USERNAME	Jenkins username	(required)
JENKINS_TOKEN	Jenkins API token	(required)
JENKINS_VERIFY_SSL	false to disable SSL verification	true
JENKINS_MODE	Access mode: read-only, standard, admin	standard

Getting a Jenkins API Token

1. Log in to Jenkins in your browser
2. Click your username (top-right) → Configure
3. Scroll to API Token → Add new Token
4. Name it (e.g., cursor-mcp-server) → Generate
5. Copy immediately -- it's shown only once

Cursor IDE Integration

Global Configuration

Add to ~/.cursor/mcp.json (Linux/Mac) or %USERPROFILE%\.cursor\mcp.json (Windows):

Standard mode (default for developers)

{
  "mcpServers": {
    "jenkins": {
      "command": "jenkins-mcp-server",
      "args": [
        "--url", "https://your-jenkins.example.com:8443",
        "--username", "your-username",
        "--token", "your-api-token",
        "--no-verify-ssl"
      ],
      "disabled": false,
      "timeout": 60
    }
  }
}

Read-only mode (safe for sharing with analysts)

{
  "mcpServers": {
    "jenkins": {
      "command": "jenkins-mcp-server",
      "args": [
        "--url", "https://your-jenkins.example.com:8443",
        "--username", "viewer-username",
        "--token", "viewer-api-token",
        "--no-verify-ssl",
        "--mode", "read-only"
      ]
    }
  }
}

Admin mode (Jenkins administrators)

{
  "mcpServers": {
    "jenkins": {
      "command": "jenkins-mcp-server",
      "args": [
        "--url", "https://your-jenkins.example.com:8443",
        "--username", "admin-username",
        "--token", "admin-api-token",
        "--no-verify-ssl",
        "--mode", "admin"
      ]
    }
  }
}

Using Environment Variables

{
  "mcpServers": {
    "jenkins": {
      "command": "jenkins-mcp-server",
      "args": ["--no-verify-ssl"],
      "env": {
        "JENKINS_URL": "https://your-jenkins.example.com:8443",
        "JENKINS_USERNAME": "your-username",
        "JENKINS_TOKEN": "your-api-token",
        "JENKINS_MODE": "standard"
      }
    }
  }
}

Workspace-specific Configuration

Create .cursor/mcp.json in your project root with the same format above.

After configuration, restart Cursor or reload MCP servers (Cmd/Ctrl+Shift+P → "MCP: Reload Servers").

MCP Tools Reference

Jobs & Builds (read-only)

Tool	Description	Mode
list_jobs	List all jobs with status, URLs, and last build info	read-only
get_job_details	Get detailed job information including builds, health reports	read-only
get_build_info	Get build status, duration, result, and actions	read-only
get_build_console	Get console output with line pagination	read-only
get_progressive_console	Stream console output for live builds (byte offset)	read-only
get_test_report	Get test pass/fail counts, suites, and cases	read-only
get_coverage_report	Get code coverage report (requires coverage plugin)	read-only
get_build_parameters	Get parameters used for a build	read-only
get_artifacts	List build artifacts	read-only
get_pipeline_stages	Get Pipeline stage breakdown with status and duration	read-only
get_job_config	Get raw XML configuration of a job	read-only

Infrastructure (read-only)

Tool	Description	Mode
get_queue_info	Get build queue information	read-only
get_queue_item	Get details about a specific queue item	read-only
list_nodes	List all Jenkins nodes/agents with status	read-only
get_node_info	Get specific node details	read-only
list_views	List all configured views	read-only
get_view_info	Get view details including contained jobs	read-only
list_credentials	List credential IDs (values never exposed)	read-only
get_system_info	Get Jenkins version, executor count, mode	read-only
list_plugins	List installed plugins with versions	read-only

Build Control (standard)

Tool	Description	Mode
trigger_build	Trigger a new build with optional parameters	standard
stop_build	Stop a running build	standard

Administration (admin)

Tool	Description	Mode
create_job	Create a job from XML config or built-in template	admin
delete_job	Delete a job permanently	admin
enable_job	Enable a disabled job	admin
disable_job	Disable a job (prevents new builds)	admin
copy_job	Copy an existing job to create a new one	admin
update_job_config	Update a job's XML configuration	admin
create_folder	Create a folder for organizing jobs	admin
replay_build	Replay a Pipeline build with optional modified script	admin

Job Templates (used with create_job)

When using create_job without providing raw XML, you can use a built-in template:

Template	Description
freestyle	Basic freestyle project with shell build step
pipeline	Pipeline job with inline Groovy script
pipeline-scm	Pipeline job loading Jenkinsfile from Git SCM
multibranch	Multibranch Pipeline scanning branches for Jenkinsfile

CLI Reference

# --- Read commands ---
jenkins-mcp list-jobs                                    # List all jobs
jenkins-mcp list-jobs -f simple                          # Simple format
jenkins-mcp list-jobs --folder MyFolder                  # Jobs in a folder
jenkins-mcp get-job MyJob                                # Job details
jenkins-mcp get-build --job MyJob --build 64             # Build info
jenkins-mcp get-console --job MyJob --build 64 --tail 50 # Console output
jenkins-mcp get-test-report --job MyJob --build 64 -s    # Test summary
jenkins-mcp get-coverage --job MyJob --build 64          # Coverage report
jenkins-mcp get-stages --job MyJob --build 64            # Pipeline stages
jenkins-mcp get-config MyJob                             # Job XML config
jenkins-mcp system-info                                  # Jenkins system info
jenkins-mcp list-plugins                                 # Installed plugins
jenkins-mcp list-views                                   # All views
jenkins-mcp list-credentials                             # Credential IDs
jenkins-mcp list-nodes                                   # Nodes/agents
jenkins-mcp get-queue                                    # Build queue

# --- Build control ---
jenkins-mcp trigger-build MyJob                          # Trigger build
jenkins-mcp trigger-build MyJob -p '{"BRANCH":"main"}'   # With parameters
jenkins-mcp stop-build --job MyJob --build 123           # Stop build

# --- Admin commands ---
jenkins-mcp create-job NewJob --template pipeline --script 'pipeline { agent any { stages { stage("Build") { steps { echo "hi" } } } } }'
jenkins-mcp create-job NewJob --config-file config.xml   # From XML file
jenkins-mcp create-job NewJob --template pipeline-scm --repo-url https://github.com/user/repo.git
jenkins-mcp delete-job OldJob -y                         # Delete (skip confirm)
jenkins-mcp enable-job MyJob                             # Enable
jenkins-mcp disable-job MyJob                            # Disable
jenkins-mcp copy-job SourceJob NewCopy                   # Copy job
jenkins-mcp update-config MyJob new-config.xml           # Update config
jenkins-mcp create-folder MyFolder                       # Create folder
jenkins-mcp replay-build --job MyJob --build 64          # Replay pipeline

Example Prompts for Cursor

Once configured, you can ask Cursor things like:

Monitoring:

• "List all Jenkins jobs and their status"
• "Show me the pipeline stages for MyJob build 64"
• "What plugins are installed on Jenkins?"
• "Get the system info for our Jenkins instance"

Debugging:

• "Get the test report for MyJob build 64 -- what failed?"
• "Show me the last 100 lines of console output for MyJob build 64"
• "What parameters were used for build 64?"
• "Get the coverage report for the latest build"

Build control:

• "Trigger a new build for MyJob with BRANCH=feature-x"
• "Stop build 123 of MyJob"

Administration (admin mode):

• "Create a new pipeline job called 'deploy-staging' with this Groovy script: ..."
• "Copy the 'nightly-tests' job to 'nightly-tests-v2'"
• "Disable the 'old-job' job"
• "Create a folder called 'team-alpha' for organizing jobs"

Python API

from jenkins_mcp_server import JenkinsClient

client = JenkinsClient(
    url="https://your-jenkins.example.com:8443",
    username="your-username",
    token="your-api-token",
    verify_ssl=False,
)

# List jobs
jobs = client.list_jobs()
for job in jobs:
    print(f"{job['name']}: {job.get('color', 'unknown')}")

# Build info
build = client.get_build_info("MyJob", 64)
print(f"Result: {build.get('result')}, Duration: {build.get('duration')}ms")

# Pipeline stages
stages = client.get_pipeline_stages("MyPipeline", 10)
for stage in stages.get('stages', []):
    print(f"  {stage['name']}: {stage['status']}")

# System info
info = client.get_system_info()
print(f"Jenkins {info['version']}, {info['numExecutors']} executors")

# Trigger a build
result = client.trigger_build("MyJob", {"BRANCH": "main"})
print(f"Queued: {result['queue_url']}")

# Create a job from template
from jenkins_mcp_server.client import render_job_template

config = render_job_template("pipeline", script="pipeline { agent any { stages { stage('Build') { steps { echo 'hello' } } } } }")
client.create_job("my-new-pipeline", config)

Troubleshooting

MCP Server Not Loading in Cursor

1. Verify installation: pip show jenkins-mcp-tools
2. Test connection: jenkins-mcp-server --test --url URL --username USER --token TOKEN --no-verify-ssl
3. Check Cursor's Output panel for MCP errors
4. Restart Cursor after changing mcp.json

SSL Certificate Errors

Use --no-verify-ssl flag or set JENKINS_VERIFY_SSL=false.

Authentication Errors (401)

1. Verify username and token are correct
2. Ensure the API token hasn't been revoked
3. Check if your account has API access permissions
4. Regenerate the token from Jenkins (User → Configure → API Token)

Mode-related Errors

If you see "Tool 'X' requires 'admin' mode but server is running in 'standard' mode":

• Restart the server with --mode admin to enable admin tools
• Or set JENKINS_MODE=admin in your environment / Cursor config

Connection Timeouts

1. Ensure VPN is connected (if required)
2. Test: curl -I https://your-jenkins.example.com:8443

Changelog

v2.0.0

• Access modes: read-only, standard, admin with --mode flag and JENKINS_MODE env var
• 15 new MCP tools: pipeline stages, job config, credentials, views, system info, plugins, job CRUD, folder management, build replay
• Job templates: Create freestyle, pipeline, pipeline-scm, and multibranch jobs from built-in templates
• CLI expansion: New commands for all new tools
• Sharing guide: Documentation for distributing to teammates

v1.0.0

• Initial release with 12 MCP tools
• CLI tool with subcommands
• Cursor IDE integration

Contributing

1. Clone the repository
2. Install dev dependencies: pip install -e ".[dev]"
3. Run tests: pytest tests/
4. Create a feature branch and merge request

License

MIT License - See LICENSE file for details.

Support

For issues or questions, open an issue on the repository.