Introduction
OpenBridge is a universal API runtime engine that bridges the gap between OpenAPI specifications and two distinct interfaces:
- For Humans: A semantic CLI with resource-oriented commands
- For AI Agents: An MCP (Model Context Protocol) server
"One Spec, Dual Interface."
Why OpenBridge?
Traditional API tools often require generating code or manually crafting CLI wrappers. OpenBridge takes a different approach by interpreting your OpenAPI specifications at runtime. This means:
- No Code Generation: You don't need to rebuild your CLI when the API spec changes.
- Unified Interface: One tool provides both a human-friendly CLI and a machine-friendly MCP server.
- Context Aware: Designed for the era of AI agents, providing tools in a way that LLMs can understand and use effectively.
Key Features
- Zero Code Generation: All behavior is dynamically driven by OpenAPI specifications
- Semantic CLI: Resource-oriented commands (
myapp user create --name "John") - Shell Auto-Completion: Tab completion for commands, resources, flags, and enum values
- MCP Server: Native AI agent integration via Model Context Protocol
- Multi-Platform: Works on Linux, macOS, and Windows
- Secure Credentials: Uses system keyring (Keychain, Credential Manager, Secret Service)
- Fast Startup: Cold start under 100ms