# mcp-boundary

> mcp-boundary — impact-boundary-labs-mcpboundary. Use this tool when you need to enforce policy and state checks on existing MCP servers, to ensure tool calls are validated and controlled. It solves problems of unauthorized or outdated tool executions by allowing, blocking, or requiring refreshes with actionable reasons. The mcp-boundary tool takes in tool calls and live state as inputs and outputs allowed, blocked, or refreshed actions with accompanying reasons.

Canonical page: https://skillsregistry.net/skills/impact-boundary-labs-mcpboundary  
JSON: https://api.skillsregistry.net/v1/skills/impact-boundary-labs-mcpboundary

## Description

Wraps your existing MCP servers and checks each tool call against policy and live state before it runs.
Allow, block, or require a refresh, with a reason the agent can act on.

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/st5c7nmigd)
- **Repository:** <https://github.com/impact-boundary-labs/MCPBoundary>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "impact-boundary-labs-mcpboundary"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/impact-boundary-labs-mcpboundary` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/impact-boundary-labs-mcpboundary/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt