runwhen-platform-mcp 2026.3.30.2

RunWhen Platform MCP Server — exposes workspace chat, issues, SLXs, run sessions, and Tool Builder (script run/commit) to MCP clients (Cursor, Claude Desktop, etc.)

RunWhen Platform MCP

RunWhen Platform MCP lets your coding agent (such as Cursor, Claude, Continue, or Copilot) talk to the RunWhen platform — workspace chat, issues, SLXs, run sessions, and the Tool Builder — over the Model Context Protocol (MCP).

GitHub · PyPI · Tools (below)

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Key features

• Workspace chat: Ask the RunWhen AI assistant about your infrastructure. It has access to issue search, task/SLX search, run sessions, resource discovery, knowledge base, graphing, and Mermaid diagrams. Supports selecting an assistant (persona) via persona_name.
• Task authoring (Tool Builder): Write bash or Python scripts locally, validate them against the RunWhen contract, run them against live infrastructure, and commit them as SLXs. Use get_workspace_context to load RUNWHEN.md conventions before writing.
• Direct data access: List workspaces, issues, SLXs, run sessions; get runbooks and config index; search tasks and resources. Plus create and update chat rules and commands.

Requirements

• Python 3.10 or newer
• RunWhen account and API token (see Getting a token)
• Any MCP client (Cursor, Claude Desktop, Continue, etc.)

Getting started

1. Install the server:

   pip install runwhen-platform-mcp
   

   Or from source (use a venv and then point your MCP client at the venv’s runwhen-platform-mcp):

   git clone https://github.com/runwhen-contrib/runwhen-platform-mcp.git
   cd runwhen-platform-mcp
   python3 -m venv .venv
   source .venv/bin/activate   # Windows: .venv\Scripts\activate
   pip install -e .
   

2. Set environment variables (see Configuration): RW_API_URL, RUNWHEN_TOKEN, and optionally DEFAULT_WORKSPACE.

3. Add the server to your MCP client using the config below. Replace your-jwt-token and your-workspace with your RunWhen token and workspace name.

Add the following to your MCP client config:

{
  "mcpServers": {
    "runwhen": {
      "command": "runwhen-platform-mcp",
      "env": {
        "RW_API_URL": "https://papi.beta.runwhen.com",
        "RUNWHEN_TOKEN": "your-jwt-token",
        "DEFAULT_WORKSPACE": "your-workspace"
      }
    }
  }
}

If you installed from source into a venv, use the full path to the venv’s runwhen-platform-mcp as command (e.g. /path/to/runwhen-platform-mcp/.venv/bin/runwhen-platform-mcp). Find it with which runwhen-platform-mcp after activating the venv.

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MCP client configuration

Configure the RunWhen MCP server in your client as shown below. Use the JSON block from Getting started; only the location of the config differs by client.

Cursor

Go to Cursor Settings → MCP → New MCP Server (or edit .cursor/mcp.json). Paste the config from Getting started. If you use a venv, set command to the full path to .venv/bin/runwhen-platform-mcp.

VS Code (GitHub Copilot)

VS Code supports MCP servers through GitHub Copilot. Add the config to your workspace or user settings:

• Workspace: .vscode/mcp.json in your project root
• User: settings.json → "mcp.servers" key

Windows with venv

git clone https://github.com/runwhen-contrib/runwhen-platform-mcp.git
cd runwhen-platform-mcp
python -m venv .venv
.venv\Scripts\activate
pip install -e .

Then add to .vscode/mcp.json:

{
  "mcpServers": {
    "runwhen": {
      "command": "C:\\path\\to\\runwhen-platform-mcp\\.venv\\Scripts\\runwhen-platform-mcp.exe",
      "env": {
        "RW_API_URL": "https://papi.beta.runwhen.com",
        "RUNWHEN_TOKEN": "your-jwt-token",
        "DEFAULT_WORKSPACE": "your-workspace"
      }
    }
  }
}

Replace C:\\path\\to\\ with the actual path where you cloned the repo. To find the exact path, run where runwhen-platform-mcp in a terminal with the venv activated.

Tip: On Windows, pip installs console scripts as .exe files in .venv\Scripts\. Always use the full absolute path with backslashes in the MCP config.

macOS / Linux with venv

{
  "mcpServers": {
    "runwhen": {
      "command": "/path/to/runwhen-platform-mcp/.venv/bin/runwhen-platform-mcp",
      "env": {
        "RW_API_URL": "https://papi.beta.runwhen.com",
        "RUNWHEN_TOKEN": "your-jwt-token",
        "DEFAULT_WORKSPACE": "your-workspace"
      }
    }
  }
}

Claude Desktop

Add the config to:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/claude/claude_desktop_config.json

Use the same mcpServers.runwhen block as in Getting started.

Other MCP clients

Any client that supports MCP over stdio can use this server. Register a local MCP server with:

• Command: runwhen-platform-mcp (or full path to the venv’s runwhen-platform-mcp if you installed from source)
• Env: RW_API_URL, RUNWHEN_TOKEN, and optionally DEFAULT_WORKSPACE

See your client’s docs for where to add MCP servers (e.g. Continue, Codex, Gemini CLI, etc.).

Remote (HTTP) access

The MCP server supports a remote HTTP transport mode for shared deployments — no local install required. This is ideal for teams running a centralized MCP server (e.g. deployed to Kubernetes).

Connecting to a remote MCP server:

Configure your MCP client to use the remote URL instead of a local command. The exact config depends on your client:

{
  "mcpServers": {
    "runwhen": {
      "url": "https://mcp.your-domain.com/mcp",
      "headers": {
        "Authorization": "Bearer your-runwhen-token"
      }
    }
  }
}

Replace mcp.your-domain.com with your deployment's hostname and your-runwhen-token with a RunWhen JWT or Personal Access Token.

Important: Use /mcp (no trailing slash). The server redirects /mcp/ → /mcp which can break some MCP clients.

Note: Not all MCP clients support remote/HTTP servers yet. Cursor, Claude Desktop (via MCP config), and the MCP Inspector all support remote URLs. Check your client's docs.

Running the server in HTTP mode yourself:

Using Docker:

docker run -p 8000:8000 \
  -e RW_API_URL=https://papi.beta.runwhen.com \
  ghcr.io/runwhen-contrib/runwhen-platform-mcp:latest

Or locally:

export MCP_TRANSPORT=http
export MCP_HOST=0.0.0.0
export MCP_PORT=8000
export FASTMCP_STATELESS_HTTP=true
export RW_API_URL=https://papi.beta.runwhen.com
runwhen-platform-mcp

The server exposes:

• /mcp/ — Streamable HTTP MCP endpoint (POST for tool calls, GET for SSE)
• /health — Health check (200 OK with version info)
• /livez — Kubernetes liveness probe

Authentication in HTTP mode: Clients send a RunWhen token via Authorization: Bearer <token> header. The server validates it against PAPI's whoami endpoint — both JWTs and Personal Access Tokens work. No RUNWHEN_TOKEN env var is needed on the server side; each client authenticates with their own token.

Variable	Required	Description
MCP_TRANSPORT	Yes	Set to http to enable remote mode (default: stdio).
MCP_HOST	No	Bind address (default: 0.0.0.0).
MCP_PORT	No	Listen port (default: 8000).
FASTMCP_STATELESS_HTTP	No	Set to true for horizontal scaling behind a load balancer.
RW_API_URL	Yes	PAPI base URL. Used for token verification and API calls.

Multiple environments

If you work across multiple RunWhen environments (e.g. beta and production, or separate workspaces), you can register multiple MCP servers. Important: only enable one at a time unless you specifically need cross-environment workflows — multiple active servers with identical tool names confuse LLM agents.

Use MCP_SERVER_LABEL to give each server a clear identity:

{
  "mcpServers": {
    "runwhen": {
      "command": "runwhen-platform-mcp",
      "env": {
        "RW_API_URL": "https://papi.app.runwhen.com",
        "RUNWHEN_TOKEN": "your-prod-token",
        "DEFAULT_WORKSPACE": "my-prod-workspace",
        "MCP_SERVER_LABEL": "prod"
      }
    },
    "runwhen-beta": {
      "command": "runwhen-platform-mcp",
      "env": {
        "RW_API_URL": "https://papi.beta.runwhen.com",
        "RUNWHEN_TOKEN": "your-beta-token",
        "DEFAULT_WORKSPACE": "my-beta-workspace",
        "MCP_SERVER_LABEL": "beta"
      }
    }
  }
}

The server includes its label, environment, and workspace in its name and instructions so agents can route tool calls to the correct instance. See mcp-multi-env.json for a full example.

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Your first prompt

After the server is connected, try:

What workspaces do I have access to?

or:

Summarize the current issues in my workspace.

Your client should call list_workspaces or get_workspace_issues and show the result. For the full chat experience, try:

Using workspace chat, what tasks are watching my production namespace?

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Tools

The server exposes these tools, grouped by use case.

• Workspace intelligence (10 tools)

  • workspace_chat — Ask the RunWhen AI assistant about your infrastructure (issues, tasks, run sessions, resources, knowledge base). Optional persona_name to select an assistant.
  • list_workspaces — List workspaces you have access to.
  • get_workspace_chat_config — Get resolved chat rules and commands (metadata). Optional persona_name.
  • get_workspace_issues — Current issues; optional severity filter (1–4).
  • get_workspace_slxs — List SLXs (health checks and tasks).
  • get_run_sessions — Recent run session results.
  • get_workspace_config_index — Workspace config and resource relationships.
  • get_issue_details — Details for a specific issue by ID.
  • get_slx_runbook — Runbook definition for an SLX.
  • search_workspace — Search tasks, resources, and config by keyword.

• Chat rules and commands (8 tools)

  • list_chat_rules — List chat rules (optional filters: scope_type, scope_id, is_active).
  • get_chat_rule — Get a chat rule by ID (full content).
  • create_chat_rule — Create a rule (name, ruleContent, scopeType, scopeId, isActive).
  • update_chat_rule — Update a rule by ID.
  • list_chat_commands — List chat commands (slash-commands).
  • get_chat_command — Get a command by ID (full content).
  • create_chat_command — Create a command (name, commandContent, scopeType, scopeId).
  • update_chat_command — Update a command by ID.

• CodeBundle Registry (3 tools)

  • search_registry — Search the public CodeBundle Registry for reusable automation. Always check before writing custom scripts.
  • get_registry_codebundle — Get full details of a specific codebundle (tasks, SLIs, env vars, source URL).
  • deploy_registry_codebundle — Deploy a registry codebundle as an SLX. Generates native codebundle YAML (different from commit_slx which embeds inline scripts).

• Task authoring — Tool Builder (9 tools)

  • get_workspace_context — Load RUNWHEN.md from the project. Call before writing scripts so the agent follows your conventions.
  • validate_script — Validate a script against the RunWhen contract (main, issue format, FD 3 for bash).
  • run_script — Run a script on a RunWhen runner; returns run ID.
  • get_run_status — Status of a run (RUNNING, SUCCEEDED, FAILED).
  • get_run_output — Parsed output (issues, stdout, stderr, report).
  • run_script_and_wait — Run script and wait for full results (run + poll + output).
  • commit_slx — Commit a tested script as an SLX (task + optional SLI; supports sli_script or cron_schedule).
  • get_workspace_secrets — List secret keys (e.g. kubeconfig).
  • get_workspace_locations — List runner locations. Location auto-resolves for run_script, commit_slx, etc.; this tool is only needed when multiple workspace runners exist and you need to choose.

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Configuration

Environment variables

Variable	Required	Description
RW_API_URL	Yes	RunWhen API base URL (e.g. https://papi.beta.runwhen.com). Agent URL is derived (subdomain papi → agentfarm).
RUNWHEN_TOKEN	Yes	RunWhen API token (JWT or Personal Access Token). Used for both API and Agent.
DEFAULT_WORKSPACE	No	Default workspace so tools don’t need workspace_name every time.
MCP_SERVER_LABEL	No	Human-readable label for this server instance (e.g. prod, beta). Included in server name and instructions for multi-environment setups. Auto-derived from RW_API_URL if not set.
RUNWHEN_CONTEXT_FILE	No	Override path to RUNWHEN.md; otherwise auto-discovered from cwd.
RUNWHEN_REGISTRY_URL	No	CodeBundle Registry URL (default: https://registry.runwhen.com). Public API, no auth required.

See .env.example in the repo.

Getting a token

• Personal Access Token (recommended, up to 180 days): RunWhen UI → Settings → Access Tokens → Create Token.
• Email/password (short-lived): POST {RW_API_URL}/api/v3/token/ with {"email": "...", "password": "..."}.
• Browser: Dev Tools → Network → copy Authorization: Bearer ... from any API request.

Access control and "Run with Assistant"

Workspace roles: readonly, readandrun, readandrunwithassistant, readwrite, admin.

• Read and Run with Assistant (readandrunwithassistant): Run tasks only when tied to an assistant (persona) you’re allowed to use. Applies to run sessions (e.g. Run button in the UI), not Tool Builder script runs.
• Workspace chat: Use persona_name in workspace_chat / get_workspace_chat_config to use chat in the context of an assistant you’re allowed to use.
• Tool Builder run (run_script, run_script_and_wait): Uses author/run API; currently admin only. No "run with assistant" for MCP script execution today.
• commit_slx: Requires admin or readwrite.

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Concepts

How it works

• Workspace chat: The server forwards workspace_chat to the RunWhen Agent (AgentFarm), which has many internal tools. You ask in natural language; optional persona_name selects the assistant.
• Tool Builder flow: Search registry (search_registry) → load context (get_workspace_context) → write script → validate → get secrets/locations → test with run_script_and_wait → iterate → commit_slx → verify with get_workspace_slxs.
• Knowledge base: Full CRUD via list_knowledge_base_articles, create_knowledge_base_article, update_knowledge_base_article, delete_knowledge_base_article. Search also works inside workspace_chat.
• CodeBundle Registry: Search for existing automation before building custom. The registry at registry.runwhen.com is public and requires no authentication.

Infrastructure context (RUNWHEN.md)

Put a RUNWHEN.md in your project root with infrastructure rules (DBs, naming, severity, etc.). The server discovers it by walking up from the current working directory. Agents should call get_workspace_context before writing scripts.

• Template: runwhen_platform_mcp/docs/RUNWHEN.md.template
• Example: runwhen_platform_mcp/docs/RUNWHEN.md.example
• Flow and SLI patterns: runwhen_platform_mcp/docs/tool-builder-flow.md

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What’s in this repo

Component	Path	Description
MCP server	runwhen_platform_mcp/	Python package; run via runwhen-platform-mcp or python -m runwhen_platform_mcp.server.
Docs	runwhen_platform_mcp/docs/	Tool Builder flow, RUNWHEN.md template/example.
Tests	tests/	Pytest tests; run with pytest tests/ -v (see requirements-dev.txt).
Skills	skills/	Reusable AI workflow skills (SKILL.md) — discovered by Cursor, Copilot, and Claude. Symlinked at .github/skills/ for Copilot auto-discovery.
Rules & agents	rules/, agents/	Optional Cursor rules and agent personas.
Docker	Dockerfile	Container image for remote HTTP deployment. Published to ghcr.io/runwhen-contrib/runwhen-platform-mcp.
Cursor plugin	.cursor-plugin/, mcp.json	Plugin metadata and example MCP config.
Copilot instructions	.github/copilot-instructions.md	Always-on instructions for GitHub Copilot.

The MCP server is client-agnostic; client-specific pieces (.cursor-plugin/, .github/copilot-instructions.md) are optional.

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Development and testing

pip install -e .
pip install -r requirements-dev.txt
pytest tests/ -v

Optional Git hooks (Ruff check + format, same as CI):

pip install pre-commit   # or install with: pip install -e ".[dev]"
pre-commit install
pre-commit run --all-files   # first-time / manual check

CI runs tests on push and PRs to main (.github/workflows/ci.yaml).

Optional repository secrets RUNWHEN_MCP_URL (full streamable HTTP MCP URL, e.g. https://mcp.<env>.runwhen.com/mcp, no trailing slash) and RUNWHEN_TOKEN (same Bearer token as MCP clients) enable a remote MCP HTTP smoke step that exercises initialize, tools/list, list_workspaces, and get_workspace_issues for workspace t-oncall (the workflow sets RW_SMOKE_WORKSPACE=t-oncall). If either secret is unset, that step is skipped with a notice.

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PyPI release

Releases are published to PyPI via GitHub Actions on release:published, using runwhen-contrib/github-actions/publish-pypi with date-based versioning (YYYY.MM.DD.N). Docker images are pushed to ghcr.io/runwhen-contrib/runwhen-platform-mcp on every PR (tagged pr-{branch}-{sha}) and on release (tagged with the release version + latest). Configure PYPI_TOKEN (and optionally SLACK_BOT_TOKEN / slack_channel) in repo secrets.

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License

Apache-2.0