Gatewerk

@gatewerk/mcp

The Gatewerk MCP server lets AI agents read and decide reviews from inside Claude Desktop, Claude Code, Cursor, Windsurf, or any Model Context Protocol client. It exposes Gatewerk's review/template/feedback/audit/chain/note APIs as MCP tools, scoped to whatever permissions the API key carries.

Gatewerk is an open-source, self-hosted review layer for AI agents. Work done for humans is decided by humans.

Quickstart

npx @gatewerk/mcp init

The init command prompts for your Gatewerk URL, API key, and (optionally) reviewer email, then prints a config block you paste into your MCP client's settings.

You can also write the config by hand:

{
  "mcpServers": {
    "gatewerk": {
      "command": "npx",
      "args": ["-y", "@gatewerk/[email protected]"],
      "env": {
        "GATEWERK_URL": "https://api.gatewerk.com",
        "GATEWERK_API_KEY": "gwk_...",
        "GATEWERK_REVIEWER": "[email protected]"
      }
    }
  }
}

GATEWERK_REVIEWER is optional — when set, decisions made through the MCP server are attributed to that reviewer. Otherwise the API key's identity is used.

Available tools

Tools are filtered automatically based on the scopes attached to your API key. A key with only reviews:read will not see gatewerk_decide_review.

Reviews

• gatewerk_create_review — submit a new review request (scope: reviews:create)
• gatewerk_list_reviews — list reviews with filters (scope: reviews:read)
• gatewerk_get_review — fetch a review with its template metadata (scope: reviews:read)
• gatewerk_decide_review — approve / reject / edit / retry a review [deprecated; prefer gatewerk_take_review_action] (scope: reviews:decide)
• gatewerk_take_review_action — invoke a configurable action on a review; supports built-in and template-specific action IDs (scope: reviews:decide)
• gatewerk_list_review_actions — introspect the available actions on a review's template (scope: reviews:read)

Templates

• gatewerk_list_templates — list templates (scope: templates:read)
• gatewerk_create_template — define a template (scope: templates:write)
• gatewerk_update_template — modify a template (scope: templates:write)
• gatewerk_delete_template — remove a template (scope: templates:write)

Chains

• gatewerk_start_chain_run — start a multi-step review chain from a definition (scope: templates:write)
• gatewerk_get_chain_run — fetch a chain run + steps by ID (scope: reviews:read)
• gatewerk_get_chain_for_review — get chain context for a review (scope: reviews:read)

Notes

• gatewerk_create_note — post a note, optionally pinned to one or more reviews/templates/chain runs (scope: notes:write)
• gatewerk_list_notes — list notes with filters (author, tags, target, shared/private) (scope: notes:read)

Queries + stats

• gatewerk_query_feedback — query past decisions for learning (scope: feedback:read)
• gatewerk_query_audit — query the audit trail (scope: audit:read)
• gatewerk_get_stats — review metrics + daily trend (scope: stats:read)

Authentication

You'll need a Gatewerk API key with the appropriate scopes. Generate one at:

• Cloud: https://app.gatewerk.com → Settings → API Keys
• Self-hosted: your Gatewerk instance's /settings/api-keys page

Common scope bundles:

• agent (read your reviews + create new ones): reviews:create, feedback:read
• reviewer (act on the inbox): reviews:read, reviews:decide, templates:read, notes:read, notes:write
• admin (full surface): all scopes

Environment variables

Variable	Required	Description
GATEWERK_API_KEY	yes	API key (gwk_...)
GATEWERK_URL	no	Gatewerk base URL (defaults to http://localhost:3100)
GATEWERK_REVIEWER	no	Reviewer email used as decision attribution

Links

• Website: https://gatewerk.com
• App: https://app.gatewerk.com
• Source: https://github.com/gatewerk/gatewerk
• Docs: https://gatewerk.com/docs
• License: Apache-2.0 (MCP SDK package; server is AGPL-3.0-only)