mockserver

mockserver is a local MCP server: Mock, record/replay, verify and chaos-test any HTTP, REST, gRPC or LLM dependency over MCP. Install it from oci as docker.io/mockserver/mockserver:8.0.0.

Claude CodeCodexAntigravity

commandprompt

Terminal

claude mcp add mockserver -- docker run -i --rm docker.io/mockserver/mockserver:8.0.0

Run in your project folder. Add --scope user to use it everywhere.

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "mockserver": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/mockserver/mockserver:8.0.0"
      ]
    }
  }
}

• Runtime: Docker.
• MCP client: Claude Code, Codex, Antigravity, Claude Desktop, Cursor or any other client that speaks MCP over stdio.