What is the key difference between Openapi MCP Gateway and Metatool App?

Openapi MCP Gateway belongs to the Aggregators category with local stdio execution, while Metatool App belongs to the Aggregators category with local stdio execution.

How do I install Openapi MCP Gateway or Metatool App in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Openapi MCP Gateway and Metatool App free or paid?

Openapi MCP Gateway operates under a Free / Open Source model (other). Metatool App operates under a Free / Open Source model (API Key required).

Which MCP server has more tools and community activity?

Openapi MCP Gateway lists 6 tools with 2 views and 6 GitHub stars. Metatool App lists 6 tools with 2 views and 2,670 GitHub stars.

Can I use both Openapi MCP Gateway and Metatool App together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Openapi MCP Gateway vs Metatool App

In-depth architectural comparison of the Openapi MCP Gateway and Metatool App MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Openapi MCP Gateway

Aggregators · Local stdio

Quality: 53/100 (Good) | Auth: other

Metatool App

Aggregators · Local stdio

Quality: 47/100 (Fair) | Auth: API Key required

Verdict Summary: Choose Openapi MCP Gateway if you need specialized Aggregators tools running via a local process. Choose Metatool App if your workspace requires Aggregators integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Openapi MCP Gateway when:

You need dedicated capabilities in the Aggregators domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
Primary tools included: Mounts multiple OpenAPI specs with separate paths and authentication, Exposes FastAPI applications over ASGI, Provides dynamic list, get, and call meta-tools.

Explore Openapi MCP Gateway Details

Choose Metatool App when:

You need dedicated capabilities in the Aggregators domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: METAMCP_API_KEY, METAMCP_OIDC_CLIENT_ID, METAMCP_OIDC_CLIENT_SECRET, METAMCP_OIDC_ISSUER, METAMCP_LOG_LEVEL.

Feature & Specification Comparison

Specification	Openapi MCP Gateway mroops0111 Aggregators	Metatool App metatool-ai Aggregators
Summary	Mount many OpenAPI specs (or your existing FastAPI app) as MCP servers in one process. Auto-promotes eligible GETs to MCP resources, exposes huge specs via three list/get/call meta-tools instead of N tool schemas, and ships per-user OAuth2 token relay with audience-bound tokens.	MetaMCP is the one unified middleware MCP server that manages your MCP connections with GUI.
Category & Scope

Tools & Capabilities Breakdown

Openapi MCP Gateway Tools (6)

Mounts multiple OpenAPI specs with separate paths and authentication

Exposes FastAPI applications over ASGI

Provides dynamic list, get, and call meta-tools

Auto-promotes eligible GET operations to MCP resources

Supports JSONata request and response shaping

Supports bearer, API-key, and OAuth2 authorization

Metatool App Tools (6)

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Openapi MCP Gateway Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "mroops0111-openapi-mcp-gateway": {
      "command": "uvx",
      "args": [
        "openapi-mcp-gateway"
      ]
    }
  }
}

Metatool App Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "metatool-ai-metatool-app": {
      "command": "uvx",
      "args": [
        "mcp-hn"
      ],
      "env": {
        "METAMCP_API_KEY": "YOUR_METAMCP_API_KEY_HERE",
        "METAMCP_OIDC_CLIENT_ID": "YOUR_METAMCP_OIDC_CLIENT_ID_HERE",
        "METAMCP_OIDC_CLIENT_SECRET": "YOUR_METAMCP_OIDC_CLIENT_SECRET_HERE",
        "METAMCP_OIDC_ISSUER": "YOUR_METAMCP_OIDC_ISSUER_HERE",
        "METAMCP_LOG_LEVEL": "YOUR_METAMCP_LOG_LEVEL_HERE"
      }
    }
  }
}

Frequently Asked Questions

Openapi MCP Gateway is categorized under Aggregators and uses a local stdio subprocess. In contrast, Metatool App belongs to Aggregators using local stdio subprocess. Select Openapi MCP Gateway when you need capabilities focused on aggregators and Metatool App when you require tools for aggregators.

More alternatives to Openapi MCP Gateway More alternatives to Metatool App Aggregators category hub Canonical compare URL