⚡ FastClaw vs ZeroClaw 🦀
Side-by-side comparison of FastClaw and ZeroClaw — two projects in the OpenClaw ecosystem.
Executive Summary
ZeroClaw 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 ZeroClaw If...
- + You want the larger community footprint and stronger proof of adoption in the market.
- + Your team already builds in Rust and wants a stack-aligned codebase.
- + MCP connectivity matters for your workflow and you want a tool-friendly integration model.
- + Maintenance signals look stronger right now, with healthier release and commit activity.
Key Differences
- ZeroClaw has 74x more stars (29k vs 391), indicating significantly broader adoption.
- ZeroClaw is growing faster with +633 stars this week vs +0 for FastClaw.
- FastClaw is written in Go while ZeroClaw uses Rust, which may influence your choice depending on your stack.
- FastClaw uses the MIT license while ZeroClaw uses Apache-2.0.
- ZeroClaw has MCP (Model Context Protocol) support while FastClaw does not.
- ZeroClaw scores higher on project health (maintenance activity, issue management, release cadence).
Which should you choose?
Both FastClaw and ZeroClaw 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, ZeroClaw is the clear choice with 29k 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.