Koskamo

ActionGuard MCP

ActionGuard provides continuous verification, reliability benchmarking, and schema drift detection for AI agents and MCP servers. It features a 5-stage live inspector, dual-hash integrity engine, and a zero-trust runtime firewall to detect prompt poisoning and schema changes.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

ActionGuard MCP logo, by lsendelCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by lsendel
MCP endpoint (Streamable HTTP)
https://actionguard.ai/mcp
Vendor documentation

What you can do with it

  • Detect schema drift in MCP servers
  • Identify prompt poisoning attacks
  • Verify MCP server reliability with A-F scores
  • Run live protocol audits against endpoints

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.lsendel/actionguard@1.0.0Source repository
Maintenance checked

Protocol and capabilities

Server
actionguard-inspector 0.1.0
MCP protocol
2024-11-05
Tools
2 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {}
}

Tools

2 advertised

actionguard_inspect
Advertised by the server during the last successful anonymous check.
Advertised read-only

Run a 5-stage continuous reliability, security, and schema audit of an MCP server or AI agent endpoint.

actionguard_inspect input schema
{
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The target MCP server or agent endpoint URL to audit"
    }
  }
}
actionguard_inspect annotations
{
  "readOnlyHint": true
}
actionguard_check_drift
Advertised by the server during the last successful anonymous check.
Advertised read-only

Verify whether an MCP server's tools schema or descriptions have drifted from a pinned Dual-Hash.

actionguard_check_drift input schema
{
  "type": "object",
  "required": [
    "url",
    "pinnedSchemaHash"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The target MCP server endpoint URL"
    },
    "pinnedSchemaHash": {
      "type": "string",
      "description": "Pinned 64-char hex SHA-256 schema hash"
    }
  }
}
actionguard_check_drift annotations
{
  "readOnlyHint": true
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
184 ms
95th percentile latency
184 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 184 ms · metadata changed · 2 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http actionguard-mcp https://actionguard.ai/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add actionguard-mcp --url https://actionguard.ai/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable actionguard-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "actionguard-mcp": {
      "url": "https://actionguard.ai/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "actionguard-mcp": {
      "type": "streamableHttp",
      "url": "https://actionguard.ai/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start actionguard-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "actionguard-mcp": {
      "type": "http",
      "url": "https://actionguard.ai/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http actionguard-mcp https://actionguard.ai/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "actionguard-mcp": {
      "url": "https://actionguard.ai/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "actionguard-mcp": {
      "serverUrl": "https://actionguard.ai/mcp"
    }
  }
}

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