Enables Claude to query Grok as a peer for collaborative reasoning
grok-quorum-mcp
An MCP server that lets Claude query Grok as a quorum peer — enabling two AI systems to debate architecture, review code, and reason together before presenting solutions to the user.
Why a Quorum?
Single-AI workflows have blind spots. When Claude can consult Grok as an equal peer, you get:
- Stronger code review — Two AI perspectives catch more bugs than one
- Better architecture — Claude proposes, Grok challenges (or vice versa), you decide
- Live research — Grok searches the web and X/Twitter in real-time for current information
- Cost control — Four modes from cheap quick answers to expensive deep multi-agent analysis
Privacy & Security
- Runs 100% locally — no telemetry, no analytics, no data collection
- Your API key never leaves your machine except in direct calls to
api.x.ai - Conversation history is in-memory only, cleared when the process exits
- You supply your own xAI API key — we never see it
Installation
npm install -g grok-quorum-mcp
API Key Setup
You need an xAI API key. Get one at console.x.ai.
Option 1: Environment variable (recommended)
export XAI_API_KEY="xai-your-key-here"
Option 2: Key file
echo "xai-your-key-here" > ~/.xai_api_key
chmod 600 ~/.xai_api_key
Security note: Always use
chmod 600on the key file. The server will warn you if permissions are too open.
Configuration
Claude Code
Add to your ~/.mcp.json:
{
"mcpServers": {
"grok-quorum": {
"command": "grok-quorum-mcp",
"env": {
"XAI_API_KEY": "xai-your-key-here"
}
}
}
}
Claude Desktop
Add to your Claude Desktop MCP config:
{
"mcpServers": {
"grok-quorum": {
"command": "npx",
"args": ["-y", "grok-quorum-mcp"],
"env": {
"XAI_API_KEY": "xai-your-key-here"
}
}
}
}
Modes
| Mode | Model | Use Case | Input/Output per 1M | Timeout |
|---|---|---|---|---|
fast |
grok-4-1-fast-reasoning | Quick answers, simple questions | $0.20 / $0.50 | 60s |
code |
grok-4.20-0309-reasoning | Precise code review with reasoning | $2.00 / $6.00 | 2min |
deep |
grok-4.20-multi-agent-0309 | Multi-agent reasoning, architecture | $2.00 / $6.00 | 5min |
deep16 |
grok-4.20-multi-agent-0309 | Maximum depth multi-agent analysis | $2.00 / $6.00 | 10min |
All models support 2M token context (2,000,000 tokens input) and 4M TPM rate limits.
Cost guidance: fast is 10x cheaper than the others. Use it for quick questions. code/deep/deep16 all use 4.20-class models at the same per-token rate — the difference is reasoning depth and multi-agent orchestration.
Tools
| Tool | Description |
|---|---|
grok_query |
Query Grok with mode selection, optional context, and live search |
grok_new_conversation |
Clear conversation history (use when switching topics) |
grok_get_history |
View conversation state and approximate token usage |
grok_get_last_response |
Recover raw API response — cost protection if parsing fails |
Usage Examples
Quick question:
grok_query(message: "What's the best way to handle WebSocket reconnection?", mode: "fast")
Code review with context:
grok_query(
message: "Review this for security issues and race conditions",
context: "<file contents here>",
mode: "code"
)
Architecture debate:
grok_query(
message: "We're choosing between PostgreSQL and DynamoDB for our event store. Challenge my assumptions.",
mode: "deep",
new_conversation: true
)
Live research:
grok_query(
message: "What are the latest MCP server best practices?",
mode: "fast",
search: "web"
)
Advanced Configuration
Override models via environment variables:
| Variable | Description | Default |
|---|---|---|
XAI_API_KEY |
xAI API key (required) | — |
GROK_MODEL_FAST |
Model for fast mode | grok-4-1-fast-reasoning |
GROK_MODEL_CODE |
Model for code mode | grok-4.20-0309-reasoning |
GROK_MODEL_DEEP |
Model for deep/deep16 modes | grok-4.20-multi-agent-0309 |
GROK_SYSTEM_PROMPT |
Custom system prompt | (built-in) |
Troubleshooting
| Issue | Fix |
|---|---|
| "No xAI API key found" | Set XAI_API_KEY env var or create ~/.xai_api_key |
| Empty responses | Run grok_get_last_response to inspect the raw API payload |
| Timeouts on deep mode | Try fast mode first, or simplify the question |
| Model access errors | Check your xAI plan supports the requested model |
Built by Xega
This project is built and maintained by Xega.ai — an AI company building intelligent systems that evolve with your essence.
We built this because we believe the best AI workflows involve multiple perspectives. Claude and Grok as equals, with the human as the
Tools (4)
grok_queryQuery Grok with mode selection, optional context, and live searchgrok_new_conversationClear conversation historygrok_get_historyView conversation state and approximate token usagegrok_get_last_responseRecover raw API responseEnvironment Variables
XAI_API_KEYrequiredxAI API keyGROK_MODEL_FASTModel for fast modeGROK_MODEL_CODEModel for code modeGROK_MODEL_DEEPModel for deep/deep16 modesGROK_SYSTEM_PROMPTCustom system promptConfiguration
{"mcpServers": {"grok-quorum": {"command": "npx", "args": ["-y", "grok-quorum-mcp"], "env": {"XAI_API_KEY": "xai-your-key-here"}}}}