Hi @sriaradhyula and team,
I'm the maintainer of mcp-generator-3.x, another Python-based OpenAPI-to-MCP code generator. I've been following your work and noticed we're solving the same core problem with complementary approaches. Rather than duplicating effort, I wanted to explore whether consolidation makes sense.
Where our projects overlap
| Capability |
openapi-mcp-codegen |
mcp-generator-3.x |
| OpenAPI 3.0 / 3.1 parsing |
✅ |
✅ |
| Python MCP server generation |
✅ |
✅ |
| A2A agent generation |
✅ (LangGraph + a2a-sdk) |
✅ (lightweight a2a-sdk) |
| OpenAPI Overlay 1.0.0 |
✅ (LLM-powered + rule-based) |
✅ (rule-based auto-generation) |
| Docker output |
✅ |
✅ |
| Auto-generated tests |
✅ (eval suite) |
✅ (pytest integration) |
Where we differ (complementary strengths)
Your unique strengths:
- LangGraph React agent with full A2A server wrapper
- LangFuse-powered evaluation and tracing
- LLM-enhanced docstring generation (
--enhance-docstring-with-llm)
- SLIM transport support
- A2A proxy (WebSocket upstream)
- Interactive eval mode with dataset builder
- Jinja2 template architecture
Our unique strengths:
- FastMCP 3.x native (composition, namespacing, streamable HTTP)
- Swagger 2.0 support alongside OpenAPI 3.0/3.1
- Modular sub-servers (one per tag, composed via
mount())
- JWT / JWKS authentication middleware
- Full OAuth2 flow support
- Middleware stack (timing, logging, cache, auth)
- MCP Resources (GET endpoints as resource templates)
- MCP Apps (interactive UI: tables, charts, forms, detail views)
- Resumable event store
- BM25 search over tool catalog (for large APIs)
- Server registry with tag auto-discovery
- Built-in Python OpenAPI client generator (no Java/Node.js dependency)
The OpenAPI-to-MCP space is still small (6 projects total on GitHub), and I think users would benefit from one comprehensive solution rather than two partial ones.
Happy to jump on a call or continue the discussion here. What are your thoughts?
Hi @sriaradhyula and team,
I'm the maintainer of mcp-generator-3.x, another Python-based OpenAPI-to-MCP code generator. I've been following your work and noticed we're solving the same core problem with complementary approaches. Rather than duplicating effort, I wanted to explore whether consolidation makes sense.
Where our projects overlap
Where we differ (complementary strengths)
Your unique strengths:
--enhance-docstring-with-llm)Our unique strengths:
mount())The OpenAPI-to-MCP space is still small (6 projects total on GitHub), and I think users would benefit from one comprehensive solution rather than two partial ones.
Happy to jump on a call or continue the discussion here. What are your thoughts?