FetchSandbox

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.fetchsandbox/mcp",
  "description": "A deterministic verification engine for agents. Proves a fix: fails on the old code, passes on new.",
  "title": "FetchSandbox",
  "repository": {
    "url": "https://github.com/fetchsandbox/mcp",
    "source": "github"
  },
  "version": "0.7.2",
  "websiteUrl": "https://fetchsandbox.com",
  "icons": [
    {
      "src": "https://avatars.githubusercontent.com/u/267827798?s=512&v=4",
      "mimeType": "image/png",
      "sizes": [
        "512x512"
      ]
    }
  ],
  "packages": [
    {
      "registryType": "npm",
      "identifier": "fetchsandbox-mcp",
      "version": "0.7.2",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Optional. Sign in without a browser — useful in CI. Left unset, the server runs anonymously and asks you to sign in the first time a run produces a receipt.",
          "format": "string",
          "isSecret": true,
          "name": "FETCHSANDBOX_API_KEY"
        },
        {
          "description": "Set to '0' to disable anonymous usage telemetry.",
          "format": "string",
          "name": "FETCHSANDBOX_TELEMETRY"
        },
        {
          "description": "Override the FetchSandbox backend base URL (defaults to https://fetchsandbox.com). Useful for stage/self-hosted testing.",
          "format": "string",
          "name": "FETCHSANDBOX_BASE_URL"
        }
      ]
    }
  ],
  "remotes": [
    {
      "type": "streamable-http",
      "url": "https://fetchsandbox.com/mcp/v1"
    }
  ]
}