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FetchSandbox MCP server

by fetchsandbox · io.github.fetchsandbox/mcp

A deterministic verification engine for agents. Proves a fix: fails on the old code, passes on new.

🛠 Developer ToolsRemotenpmv0.7.30
Open in MCP HubGitHub repository ↗Website ↗

How to install FetchSandbox

Remote (http)

claude mcp add --transport http mcp https://fetchsandbox.com/mcp/v1

Or add it to your MCP config (Claude Desktop, Cursor, VS Code):

{
  "mcpServers": {
    "mcp": {
      "type": "http",
      "url": "https://fetchsandbox.com/mcp/v1"
    }
  }
}

npm

claude mcp add mcp -- npx -y [email protected]

Or add it to your MCP config (Claude Desktop, Cursor, VS Code):

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  }
}

Environment variables:
FETCHSANDBOX_API_KEY – Sign in using an account API key. Discovery is available anonymously; application planning, verification and managed local tunnels require authentication.
FETCHSANDBOX_TELEMETRY – Set to '0' to disable anonymous usage telemetry.
FETCHSANDBOX_BASE_URL – Override the FetchSandbox backend base URL (defaults to https://fetchsandbox.com). Useful for stage/self-hosted testing.

Replace placeholders in <angle brackets> with your own values. Review what a server can access before you enable it.

Details

Version
0.7.30
Published
2026-10-19
Updated
2026-10-19
Namespace
io.github.fetchsandbox
Source
fetchsandbox/mcp

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