How do I install the groundcheck mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `GROQ_API_KEY`, `GROUNDCHECK_ENGINE_URL`, `GROUNDCHECK_SEARCH_URL`, `GROUNDCHECK_SEARCH_KEY`, `GROUNDCHECK_ROUTER_PATH`, `GROUNDCHECK_ENGINE_HOST`, `GROUNDCHECK_REPO_URL` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

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Groundcheck MCP Server

Verify factual claims against live sources: verdict, confidence score, and citations over MCP.

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What is the Groundcheck MCP Server?

Verify factual claims against live sources: verdict, confidence score, and citations over MCP.

What it actually does

Groundcheck verifies a factual claim against live sources and returns a verdict, a confidence score, and citations. Any agent — Claude Code, Cursor, your own — can call it mid-task, before it states a fact it isn't sure of.

retrieves — sources first, then asks only the narrow, evidence-anchored question — does
refuses on conflict — and saturates confidence, so disagreement flows to unverified
returns citations — , so the verdict is checkable, not taken on the model's word

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

How to install the Groundcheck MCP Server

{
  "mcpServers": {
    "groundcheck": {
      "command": "npx",
      "args": ["-y", "groundcheck-mcp"],
      "env": {
        "GROQ_API_KEY": "your-value",
        "GROUNDCHECK_ENGINE_URL": "your-value",
        "GROUNDCHECK_SEARCH_URL": "your-value",
        "GROUNDCHECK_SEARCH_KEY": "your-value",
        "GROUNDCHECK_ROUTER_PATH": "your-value",
        "GROUNDCHECK_ENGINE_HOST": "your-value",
        "GROUNDCHECK_REPO_URL": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

Variable	Description	Required
GROQ_API_KEY	Credential the server authenticates with.	Yes
GROUNDCHECK_ENGINE_URL	Endpoint or connection string the server talks to.	Yes
GROUNDCHECK_SEARCH_URL	Endpoint or connection string the server talks to.	Yes
GROUNDCHECK_SEARCH_KEY	Credential the server authenticates with.	Yes
GROUNDCHECK_ROUTER_PATH	Filesystem location the server is allowed to use.	Optional
GROUNDCHECK_ENGINE_HOST	Endpoint or connection string the server talks to.	Optional
GROUNDCHECK_REPO_URL	Endpoint or connection string the server talks to.	Yes

Frequently asked questions

Verify factual claims against live sources: verdict, confidence score, and citations over MCP. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.

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