AgentIndex icon
AgentIndex
mcp_on_ruby logo
mcp_on_ruby
★ 97
vs
mcp-gateway logo
mcp-gateway
★ 53

mcp_on_ruby vs mcp-gateway

mcp_on_ruby: MCP on Ruby is a gem that transforms Rails applications into AI-accessible interfaces using the Model Context Protocol. It allows developers to define callable tools and expose data resources, enabling AI models to interact with and automate actions within Rails apps securely and efficiently.; mcp-gateway: MCP Gateway enables AI assistants to securely access internal tools without exposing public endpoints, providing cryptographically secure, zero-trust connectivity. It aggregates multiple tool backends into a single secure endpoint, leveraging OpenZiti, zrok, and Agora for dark services that work through NATs and firewalls.

01

TL;DR

mcp_on_ruby logo
mcp_on_rubyAPI Integration · ★ 97

Transforming an existing Rails application into an AI-accessible interface.

Read mcp_on_ruby full review →
mcp-gateway logo
mcp-gatewayAPI Integration · ★ 53

Aggregate Multiple Tool Servers: Combine filesystem, GitHub, database, and custom tools into one secure connection.

Read mcp-gateway full review →
02

Side-by-Side Comparison

Field
mcp_on_ruby logomcp_on_ruby
mcp-gateway logomcp-gateway
Category
API Integration
API Integration
Stars
★ 97
★ 53
License
MIT
Apache-2.0
Install Command
bundle install && rails generate mcp_on_ruby:install
go install github.com/openziti/mcp-gateway/cmd/...@latest
Updated
4mo ago
1mo ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Rails, AI Integration, Model Context Protocol
zero-trust, API gateway, secure access
03

Features

mcp_on_ruby logomcp_on_ruby
01Production-ready features including authentication, rate limiting, and robust error handling.
02Seamless Rails integration with generators, autoloading, middleware, and Railtie support.
03A powerful Tools System for defining callable functions with JSON Schema validation.
04A Resources System for exposing application data via URI templating.
05Built-in security measures such as DNS rebinding protection, CORS, and token authentication.
mcp-gateway logomcp-gateway
01Zero-trust, cryptographically secure connectivity with no public attack surface.
02Aggregates diverse tool backends (stdio, zrok, Agora, HTTP/S) into a single secure endpoint.
03Operates through NATs and firewalls without requiring port forwarding.
04Provides isolated sessions for each connecting client, preventing shared state and cross-talk.
05Supports granular tool filtering and access control per backend.
04

Use Cases

mcp_on_ruby logomcp_on_ruby
↳Transforming an existing Rails application into an AI-accessible interface.
↳Integrating Rails backend functionality with various AI clients, such as Claude Desktop.
↳Registering Rails tools and resources with central MCP registries for discovery and management.
↳Enabling AI models to execute specific functions or retrieve data programmatically from a Rails application.
mcp-gateway logomcp-gateway
↳Aggregate Multiple Tool Servers: Combine filesystem, GitHub, database, and custom tools into one secure connection.
↳Expose a Remote Tool Server: Securely expose a local MCP server running on a remote machine to the network.
↳Chain Bridges and Gateways: Connect a gateway to remote bridges or other gateways as backends for extended reach.
↳Serve and Discover Through Agora: Utilize Agora Layer 1 tunnels for serving, publishing catalog advertisements, and connecting to backends.
↳Connect to HTTP and HTTPS MCP Servers: Aggregate remote MCP servers over HTTP(S), supporting SSE or streamable HTTP transport.
FAQ

FAQ

What is the difference between mcp_on_ruby and mcp-gateway?
Both mcp_on_ruby and mcp-gateway are in the API Integration category. mcp_on_ruby has 97 stars, while mcp-gateway has 53 stars.
Which is better, mcp_on_ruby or mcp-gateway?
The best choice depends on your use case. Choose mcp_on_ruby if Transforming an existing Rails application into an AI-accessible interface., and mcp-gateway if Aggregate Multiple Tool Servers: Combine filesystem, GitHub, database, and custom tools into one secure connection..
Is mcp_on_ruby free or open source?
Yes, mcp_on_ruby is open source on GitHub (MIT).
Is mcp-gateway free or open source?
Yes, mcp-gateway is open source on GitHub (Apache-2.0).
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