How do I install the numguard 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 `NUMGUARD_FACILITATOR_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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Numguard MCP Server

Verify a number before an agent asserts it — evals, backtests (Deflated Sharpe), signed receipts.

Remote serverstreamable-httpPython

What is the Numguard MCP Server?

Verify a number before an agent asserts it — evals, backtests (Deflated Sharpe), signed receipts.

What you get

MCP registry identity — mcp-name: io.github.ipezygj/numguard

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.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

Tool	What it does
verify_subset_win	Does "we lead on subset X" survive correcting for how many subsets I tested?
verify_model_gap	Is the gap between these two models bigger than the test set can resolve?
verify_judge_bias	Is my judge's preference real, or just longer / first / same-family?
calibrate_judge	Is the LLM judge I trust actually calibrated against ground truth?
audit_leaderboard	Is #1 on this leaderboard statistically real? (rank confidence intervals)
verify_agent	This wallet claims a track record — fetch its own public on-chain trades and re-derive the result.
audit_addresses	Run that same verdict across an explicit list of addresses. (only the addresses given)
verify_vault	Re-derive a vault's APY from its own Deposit/Withdraw events, instead of quoting its page.
verify_backing	Re-derive backing = reserves held / token supply, from the chain.
verify_guard_trace	Recompute a behavioural-guard verdict over an agent's action trace, and sign it.
check_attestation	Look up a numguard credential on-chain. (free, no key, no gas)
erc8004_feedback	Build the ERC-8004 giveFeedback call from a verdict, so reputation carries the evidence. (free)

How to install the Numguard MCP Server

{
  "mcpServers": {
    "numguard": {
      "command": "uvx",
      "args": ["numguard"],
      "env": {
        "NUMGUARD_FACILITATOR_URL": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

Variable	Description	Required
NUMGUARD_FACILITATOR_URL	Endpoint or connection string the server talks to.	Yes

Example prompts to try

“Use Numguard to verify subset win.”
“Use Numguard to verify model gap.”
“Use Numguard to verify judge bias.”

Frequently asked questions

Verify a number before an agent asserts it — evals, backtests (Deflated Sharpe), signed receipts. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.