mcp

A deterministic verification engine for agents. Fires the edge cases your sandbox never sends — duplicate webhooks, declined cards, rate limits — then proves a fix: the same scenario fails on the old code and passes on the new. npm: fetchsandbox-mcp

Installation

MCP client config (paste into mcp.json)

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

Agent install prompt

Copy and paste into Cursor / Claude / other agents to install this MCP for you

Please read this MCP repository and install it into my current environment:
https://github.com/fetchsandbox/mcp

Known working client config (can write into mcp.json):
{
  "mcpServers": {
    "mcp": {
      "url": "https://fetchsandbox.com/mcp/v1"
    }
  }
}

Please: 1) check README for deps and env vars; 2) write config for my client; 3) if secrets are missing, tell me what to fill — do not invent values.

GitHub

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