Checked 4 October 2026. Every comparison links its sources and says where the other tool is the better choice.
Side by side
| Tool | What it is | Licence | Best at |
|---|---|---|---|
| OpenWOP | Wire protocol plus conformance suite | CC BY 4.0 spec, Apache 2.0 code | A portable run contract: approvals, event log, fork and replay; new, with no independent host yet |
| LangGraph | Agent framework plus hosted runtime | MIT library, Elastic-2.0 server | Building stateful agents in Python or JavaScript |
| CrewAI | Multi-agent framework plus platform | MIT | Fast role-based multi-agent apps in Python |
| AutoGen, Agent Framework, AG2 | Agent frameworks | MIT, MIT, Apache 2.0 | .NET and Azure agents; community multi-agent in Python |
| Temporal | Durable-execution engine | MIT | Production durable execution in any domain |
| n8n | Low-code automation platform | Sustainable Use (fair-code) | Visual automation with thousands of integrations |
Protocols it works with
- A2A, MCP and OpenWOP: MCP connects an agent to tools, A2A lets agents delegate to each other, and OpenWOP runs the workflow they take part in.
- OpenExO 3.0 and OpenWOP: how an organisational framework maps onto the protocol.
Something out of date?
These pages describe other projects as of the date above. If a fact has changed, open an issue and we will correct it.