keryx
★ 36
vs
MetaGPT
★ 71.0k
keryx vs MetaGPT
keryx: Keryx is a fullstack TypeScript framework built on Bun, designed to write application logic once and deploy it across various transports, including HTTP, WebSocket, CLI, background tasks, and MCP (Model Context Protocol) for AI agents. It automatically exposes all actions as MCP tools, allowing AI agents to authenticate and interact with your application's validated endpoints with type safety.; MetaGPT: MetaGPT is a multi-agent framework that assigns different roles to LLMs, enabling them to collaborate on complex software development tasks. It takes a one-line requirement and outputs comprehensive project artifacts, mimicking a software company's entire process.
01
TL;DR
keryxMulti-Agent · ★ 36
Developing full-stack web applications where backend logic needs to serve various client types (web, mobile, CLI, AI agents).
MetaGPTMulti-Agent · ★ 71.0k
When to choose:
- You want to experiment with or demonstrate the 'software company SOP' multi-agent pattern (PM, architect, engineer generating specs and code).
- You are looking for the reference implementation of research papers from the team such as AFlow, SPO, and AOT.
When to skip:
- You want an actively updated general-purpose production agent framework; the repository's last push was in January 2026.
- You are on Python 3.12+ or do not want to install Node.js and pnpm alongside Python (README specifies Python 3.9–3.11).
02
Side-by-Side Comparison
Field
keryxMetaGPTCategory
Multi-Agent
Multi-Agent
Stars
★ 36
★ 71.0k
License
MIT
MIT
Install Command
bunx keryx new my-app && cd my-app && cp .env.example .env && bun install && bun dev
pip install --upgrade metagpt
Updated
1d ago
9mo ago
Open Source
Yes
Yes
Tags
TypeScript, Bun, Fullstack Framework
Multi-Agent System, Large Language Models, Software Development
03
Features
keryx01MCP-native actions: Every action is automatically an MCP tool with OAuth 2.1 authentication, typed errors, and per-session isolation for AI agents.
02Transport-agnostic Actions: A single action class handles HTTP, WebSocket, CLI, background tasks, and MCP tool calls with unified validation and middleware.
03Zod input validation: Provides type-safe parameter validation with automatic error responses and OpenAPI generation.
04Built-in background tasks: Utilizes node-resque for background job processing with fan-out patterns for parallel execution.
05Strongly-typed frontend integration: Offers end-to-end type safety for API responses with a companion Vite + React frontend, no code generation needed.
06Streaming responses: Supports SSE, chunked binary, and cross-transport streaming behavior for real-time data flow.
MetaGPT01Accepts single-line requirements and generates comprehensive software artifacts (e.g., user stories, APIs, documentation).
02Emulates a software company by assigning distinct roles (e.g., PM, Architect, Engineer) to LLM agents.
03Orchestrates collaborative processes using Standard Operating Procedures (SOPs) for complex task completion.
04Supports integration with various Large Language Models and APIs (e.g., OpenAI, Azure, Ollama, Groq).
05Enables advanced capabilities like data interpretation and automated workflow generation.
04
Use Cases
keryx↳Developing full-stack web applications where backend logic needs to serve various client types (web, mobile, CLI, AI agents).
↳Building APIs designed for AI agents that require robust authentication, type validation, and standardized protocol (MCP) interaction.
↳Creating microservices or backend systems that unify HTTP, WebSocket, and CLI interfaces under a single, consistent codebase.
↳Implementing complex data processing or long-running operations as background tasks with parallel processing capabilities.
MetaGPT↳Data Interpreter
↳Debate
↳Researcher
05
Best For
keryx—
MetaGPTMost PopularEssential
FAQ
FAQ
What is the difference between keryx and MetaGPT?
Both keryx and MetaGPT are in the Multi-Agent category. keryx has 36 stars, while MetaGPT has 71.0k stars.
Which is better, keryx or MetaGPT?
The best choice depends on your use case. Choose keryx if Developing full-stack web applications where backend logic needs to serve various client types (web, mobile, CLI, AI agents)., and MetaGPT if Data Interpreter.
Is keryx free or open source?
Yes, keryx is open source on GitHub (MIT).
Is MetaGPT free or open source?
Yes, MetaGPT is open source on GitHub (MIT).
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