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Jenkins MCP Integration for LangGraph

Connect Jenkins to LangGraph through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 6 read 1 write API token auth
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Connect Jenkins to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

Jenkins MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

{
  "mcpServers": {
    "kosmokrator-jenkins": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=jenkins",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=jenkins --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Jenkins instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Jenkins Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the Jenkins integration catalog.

MCP toolSource functionTypeDescription
integration__jenkins__jenkins_list_jobs jenkins.jenkins_list_jobs Read List all Jenkins jobs. Returns job names, URLs, colors (build status), and basic metadata.
integration__jenkins__jenkins_get_job jenkins.jenkins_get_job Read Get detailed information about a specific Jenkins job, including description, last build, health reports, and parameters.
integration__jenkins__jenkins_create_job jenkins.jenkins_create_job Write Create a new Jenkins job. Requires a job name and configuration.
integration__jenkins__jenkins_list_builds jenkins.jenkins_list_builds Read List builds for a specific Jenkins job, including build numbers, results, durations, and timestamps.
integration__jenkins__jenkins_get_build jenkins.jenkins_get_build Read Get detailed information about a specific Jenkins build, including result, duration, console output, artifacts, and change sets.
integration__jenkins__jenkins_list_nodes jenkins.jenkins_list_nodes Read List all Jenkins nodes (agents), including name, offline status, and executor count.
integration__jenkins__jenkins_get_current_user jenkins.jenkins_get_current_user Read Get the authenticated Jenkins user's profile information, including user ID, full name, and email.

Related Jenkins Pages

Jenkins CLIUse direct JSON commands instead of MCP discovery. Jenkins MCPFull gateway reference and MCP tool names. KosmoKrator for LangGraphClient-level gateway setup.