FastClaw vs OpenClaw 🦞

Side-by-side comparison of FastClaw and OpenClaw — two projects in the OpenClaw ecosystem.

Executive Summary

OpenClaw is the more established choice by community size, while FastClaw is the more niche option for teams that care about its specific design tradeoffs.

Use the score table for the hard numbers, then use the decision notes below to figure out which tradeoffs matter for your team.

Choose FastClaw If...

  • + Your team already builds in Go and wants a stack-aligned codebase.
  • + Its positioning around performance and lightweight is closer to what you need.

Choose OpenClaw If...

  • + You want the larger community footprint and stronger proof of adoption in the market.
  • + Your team already builds in TypeScript and wants a stack-aligned codebase.
  • + MCP connectivity matters for your workflow and you want a tool-friendly integration model.
Stars
★ 391
★ 339k
7d Growth
0
+9.0k
Forks
47
67k
Open Issues
9
16k
Language
Go
TypeScript
Categories
performance, lightweight
reference, self-hosted
Platform
Server
Server
LLM Required
Yes
Yes
MCP Support
No
Yes
Integrations
License
MIT
MIT
Last Commit
0d ago
0d ago
Latest Release
v0.17.0
v2026.3.24
Health Score
75/100
85/100
Leaderboard Rank
#33 of 54
#1 of 54

Key Differences

  • OpenClaw has 868x more stars (339k vs 391), indicating significantly broader adoption.
  • OpenClaw is growing faster with +9.0k stars this week vs +0 for FastClaw.
  • FastClaw is written in Go while OpenClaw uses TypeScript, which may influence your choice depending on your stack.
  • OpenClaw has MCP (Model Context Protocol) support while FastClaw does not.
  • FastClaw focuses on performance, lightweight while OpenClaw targets reference, self-hosted.

Which should you choose?

Both FastClaw and OpenClaw are part of the OpenClaw ecosystem of personal AI agent frameworks. Your choice depends on your priorities — community size, language preference, project maturity, and specific feature focus.

If you want the most battle-tested option with the largest community, OpenClaw is the clear choice with 339k stars and a mature ecosystem. However, FastClaw may be worth considering if you need its focus on performance or prefer Go.

Ultimately, the best choice depends on your specific use case. Check out each project's page for detailed stats and links to their repositories.

Frequently Asked Questions

Is FastClaw or OpenClaw more popular?
OpenClaw currently has 339k GitHub stars compared to 391 for FastClaw. In the last 7 days, OpenClaw gained more stars (+9.0k).
What language is FastClaw vs OpenClaw written in?
FastClaw is written in Go while OpenClaw uses TypeScript. This affects plugin ecosystems, contribution accessibility, and runtime performance characteristics.
Does FastClaw or OpenClaw support MCP?
OpenClaw supports the Model Context Protocol (MCP) for connecting to external tools, while FastClaw does not currently offer MCP support.

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