Stack Gems

{
  "mcpServers": {
    "com.stackgems/catalog": {
      "url": "https://stackgems.com/api/mcp"
    }
  }
}

Indexed tools

Tool metadata and schemas come from the remote server and are untrusted. Indexing only lists tools; it never calls them.

5 shown · authentication unknown

• Shortlist for a use case

  best_for

  Ranked shortlist for a use case or category (e.g. "vector database", "coding agents", "auth", "mcp"), free and open source first, each with verdict and Catch. Falls back to search when no list matches.

  Schema valid · SHA-256 13fa2ac58dd4…

  View input schema

  {
    "type": "object",
    "properties": {
      "use_case": {
        "type": "string",
        "description": "What the tool is for, e.g. \"self-hosted auth\" or \"kubernetes\""
      },
      "limit": {
        "type": "integer",
        "minimum": 1,
        "maximum": 25,
        "default": 10
      }
    },
    "required": [
      "use_case"
    ],
    "additionalProperties": false
  }

• Free alternatives to a tool

  get_alternatives

  Free and open-source alternatives to a tool from the same category, with verdict and Catch. Works for any slug in the catalog.

  Schema valid · SHA-256 b2d75ef037f3…

  View input schema

  {
    "type": "object",
    "properties": {
      "slug": {
        "type": "string",
        "description": "Tool slug, e.g. \"cursor\""
      },
      "limit": {
        "type": "integer",
        "minimum": 1,
        "maximum": 15,
        "default": 8
      }
    },
    "required": [
      "slug"
    ],
    "additionalProperties": false
  }

• Get one review

  get_gem

  Full Stack Gems review of one tool by slug: what is good, the Catch, verdict, license, repo health, plus links to its best-of list and alternatives.