rocketcyber-mcp

MCP (Model Context Protocol) server for the RocketCyber Managed SOC platform. Provides read-only access to RocketCyber security data through 10 tools and 3 resources.

Features

• 10 read-only tools covering all RocketCyber API resources, each annotated readOnlyHint: true so MCP clients (e.g. Microsoft 365 Copilot) can skip per-call confirmation prompts
• 3 MCP resources for quick data access
• Dual transport: stdio (default) and HTTP Streamable
• Lazy SDK initialization on first tool call
• Winston logger with all output routed to stderr
• Connection test tool for validating credentials

One-Click Deployment

Installation

This project depends on @wyre-ai/node-rocketcyber, published to the GitHub Packages npm registry, which requires a token even for public packages. Authenticate once, then install:

# Authenticate npm to GitHub Packages (token needs the read:packages scope)
export NODE_AUTH_TOKEN=$(gh auth token)   # or a PAT with read:packages

npm install
npm run build

The repo's .npmrc already points the @wyre-ai scope at GitHub Packages and reads the token from NODE_AUTH_TOKEN, so no further config is needed.

Configuration

Copy .env.example and set the variables below.

/health stays unauthenticated and does not read credentials. The stdio transport does not use CONDUIT_S2S_SECRET.

HTTP authentication

With MCP_TRANSPORT=http and a real CONDUIT_S2S_SECRET, every /mcp request must include X-Gateway-S2S. The check is verifyS2sHeader in src/mcp/s2s-verify.ts: the header value is t=<unix seconds>,v1=<hex>, where the hex is HMAC-SHA256 of the literal string t=<unix seconds> keyed with CONDUIT_S2S_SECRET (64 lowercase hex characters). The timestamp must be within 300 seconds of the server clock. A missing or invalid header is HTTP 401, before vendor credentials are read.

TS=$(date +%s)
SIG=$(printf 't=%s' "$TS" | openssl dgst -sha256 -hmac "$CONDUIT_S2S_SECRET" -hex | awk '{print $NF}')
curl -sS http://127.0.0.1:8080/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -H "X-Gateway-S2S: t=${TS},v1=${SIG}" \
  -H "X-RocketCyber-API-Key: $ROCKETCYBER_API_KEY" \
  -H "X-RocketCyber-Region: us" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

In AUTH_MODE=gateway, /mcp also requires X-RocketCyber-API-Key (X-RocketCyber-Region is optional). That header is the only credential source for the request. A missing or blank API key is HTTP 401 and does not fall back to ROCKETCYBER_API_KEY. AUTH_MODE=env still requires the signed X-Gateway-S2S header, then uses ROCKETCYBER_API_KEY from the environment.

Usage

Claude Desktop (stdio)

Add to your Claude Desktop configuration (claude_desktop_config.json):

{
  "mcpServers": {
    "rocketcyber": {
      "command": "node",
      "args": ["/path/to/rocketcyber-mcp/dist/entry.js"],
      "env": {
        "ROCKETCYBER_API_KEY": "your-api-key"
      }
    }
  }
}

HTTP Transport

HTTP refuses to start until CONDUIT_S2S_SECRET is a real secret (not a known placeholder). Publish the port on loopback.

# Single-tenant HTTP. Uses ROCKETCYBER_API_KEY after X-Gateway-S2S verifies.
CONDUIT_S2S_SECRET="$CONDUIT_S2S_SECRET" \
  ROCKETCYBER_API_KEY=your-api-key \
  MCP_TRANSPORT=http \
  npm start

# Local HTTP only, without a service-to-service secret. Always binds 127.0.0.1.
MCP_TRANSPORT=http MCP_ALLOW_INSECURE_DEV=1 npm start

Docker

The image listens on 0.0.0.0 inside the container (MCP_HTTP_HOST) and defaults to AUTH_MODE=gateway. Publish the port on loopback and pass a real S2S secret. In gateway mode, RocketCyber credentials arrive on each request as headers; they are not read from the environment.

docker build -t rocketcyber-mcp --build-arg GITHUB_TOKEN="$GITHUB_TOKEN" .
docker run \
  -e CONDUIT_S2S_SECRET="$CONDUIT_S2S_SECRET" \
  -p 127.0.0.1:8080:8080 \
  rocketcyber-mcp

Compose refuses to start when CONDUIT_S2S_SECRET is unset. The gateway service sets AUTH_MODE=gateway, does not inject ROCKETCYBER_API_KEY, and publishes 127.0.0.1:8080:8080:

CONDUIT_S2S_SECRET="$CONDUIT_S2S_SECRET" GITHUB_TOKEN="$GITHUB_TOKEN" docker compose up

Single-tenant HTTP (AUTH_MODE=env) still requires the S2S secret, then uses ROCKETCYBER_API_KEY. It is separate from the gateway Compose service above.

docker run \
  -e CONDUIT_S2S_SECRET="$CONDUIT_S2S_SECRET" \
  -e AUTH_MODE=env \
  -e ROCKETCYBER_API_KEY=your-api-key \
  -e ROCKETCYBER_REGION=us \
  -p 127.0.0.1:8080:8080 \
  rocketcyber-mcp

Tools

Every tool below only reads data (no tool issues a write to the RocketCyber API), so each is annotated annotations: { readOnlyHint: true } in the tools/list response. MCP clients that honor readOnlyHint — Microsoft 365 Copilot / Copilot Studio among them — use this to skip the per-call confirmation prompt they'd otherwise show before every tool call.

Resources

Development

# Install dependencies
npm install

# Run in development mode
npm run dev

# Build
npm run build

# Start production server
npm start

License

Apache-2.0