Allows interaction with GitHub repositories, including searching issues, retrieving repository statistics, and creating pull requests.
Enables querying events, creating events, and finding free time slots on Google Calendar.
Provides database operations for PostgreSQL, such as executing queries, listing tables, and describing table schemas.
Facilitates sending messages, listing channels, and retrieving thread conversations on Slack.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@MCP OpsBridge show me today's calendar events"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Production MCP (Model Context Protocol) server exposing 30 DevOps tools for AI agents with a user approval system that prevents unauthorized write/destructive operations.
Exposes 29 tools + 1 approve_action tool across 4 services, guarded by a risk-based permission gate:
Service | Tools | Read (Auto) | Write (Gated) | Destructive (Double Approval) |
GitHub | 7 | All 7 | — | — |
Calendar | 8 | 4 ( | 3 ( | 1 ( |
Database | 9 | 3 ( | 2 auto + 1 gated ( | 3 ( |
Slack | 5 | 3 ( | 2 ( | — |
Related MCP server: MCP-NG
The permission gate intercepts medium+ risk tool calls and returns pending_approval instead of executing. The agent presents a structured request to the user, who confirms via the approve_action tool.
Low risk → Auto-execute (reads)
Medium/High → Single approval required
Critical → Double approval required (two separate confirms)
Timeout → Stale approvals auto-expire after 5 minutes
┌──────────────────────────────────────────────────┐
│ CLIENTS │
│ Claude Desktop (stdio) │ Custom Client (HTTP) │
└────────────┬─────────────────────┬───────────────┘
│ │
▼ ▼
┌──────────────────────────────────────────────────┐
│ MCP SERVER │
│ ┌────────────────────────────────────────────┐ │
│ │ Transport: stdio | Streamable HTTP │ │
│ │ Rate Limiter: 100 req/min user, 1000/hr IP│ │
│ │ Permission Gate: Risk → Pending/Execute │ │
│ │ Validation: Zod schemas on all inputs │ │
│ └────────────────────────────────────────────┘ │
└────────────┬─────────────────────┬───────────────┘
│ │
▼ ▼
┌──────────────────────────────────────────────────┐
│ EXTERNAL APIs │
│ GitHub │ Google Calendar │ PostgreSQL │ Slack │
└──────────────────────────────────────────────────┘npm install
npm run dev # stdio mode (default)
TRANSPORT=http PORT=3099 npm run dev # HTTP modeAdd to claude_desktop_config.json:
{
"mcpServers": {
"opsbridge": {
"command": "npx",
"args": ["tsx", "src/cli.ts"],
"env": {
"GITHUB_TOKEN": "ghp_...",
"DATABASE_URL": "postgresql://...",
"SLACK_TOKEN": "xoxb-...",
"CALENDAR_TOKEN": "ya29..."
}
}
}
}cp .env.example .env
# Edit .env with your tokens
docker compose up -dVariable | Required | Description |
| No* | GitHub token (*required for private repos; public repos work without) |
| No* | PostgreSQL connection string (*required for DB tools) |
| No* | Slack bot token ( |
| No* | Google Calendar OAuth token (*required for Calendar tools) |
| No |
|
| No | HTTP port (default: 3002) |
Permission gate: Risk-based approval for write/destructive operations; critical ops require double approval
Read-only database: PostgreSQL session set to READ ONLY + write keyword blocklist
Rate limiting: LRU cache, 100 requests/minute per user, 1000/hour per IP
Scoped tokens: Each service requires its own token
Input validation: All tool inputs validated with Zod schemas
No secrets in code: All tokens loaded from environment variables
5-minute approval timeout: Stale pending approvals auto-expire
npm run build # Compile TypeScript
npm run dev # Start dev server (stdio)
npm test # Run Vitest (71 tests)
npm run lint # Type check
npm run format # Prettier formatTypeScript 5.5+
@modelcontextprotocol/sdk v1.29 (MCP protocol)
Zod (input validation)
@octokit/rest (GitHub API)
pg (PostgreSQL)
lru-cache (rate limiting + approval store)
Vitest (testing)
MIT
This server cannot be installed
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