head to head · open source
zeroshot vs concord-mcp
zeroshot has 1,985 GitHub stars, 188 forks, 3 open issues and last shipped 2 days ago. concord-mcp has 517 stars, 27 forks, 34 open issues and last shipped 2 days ago. zeroshot leads on adoption by 284% (1,985 vs 517 stars). zeroshot is written in Rust under MIT; concord-mcp is written in TypeScript under MIT. zeroshot has attracted 9% as many forks as stars, concord-mcp 5%. zeroshot was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (ai-agents, claude-code, code-review), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| zeroshot | concord-mcp | |
|---|---|---|
| GitHub stars | ★ 2.0K | ★ 517 |
| License | MIT | MIT |
| Written in | Rust | TypeScript |
| Last push | 2026-10-15 | 2026-10-15 |
| Forks | ⑂ 188 | ⑂ 27 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick zeroshot if
- You weight community size — 2.0K stars and counting
- You want the MIT license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick concord-mcp if
- You want the concord-mcp feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and concord-mcp fits your workflow better
About zeroshot
Zeroshot is an open source, MIT licensed Rust CLI that orchestrates coding agents as an explicit review graph for developers who want AI written changes verified by agents other than the one that wrote them.
read the full zeroshot overview →
About concord-mcp
Concord MCP is an open source, local first communication and coordination layer that lets AI coding agents in different harnesses message each other and share work state through a single MCP server, and it is intended for developers and teams running more than one coding agent in the same repository.
read the full concord-mcp overview →
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Frequently asked questions
Is zeroshot or concord-mcp more popular?
zeroshot has 1,985 GitHub stars and concord-mcp has 517. zeroshot has the larger community by that measure.
Are zeroshot and concord-mcp free?
Both are open source. zeroshot is licensed under MIT and concord-mcp under MIT. Neither carries a licence fee.
What is the difference between zeroshot and concord-mcp?
zeroshot is written in Rust and concord-mcp in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, zeroshot or concord-mcp?
Choose zeroshot if you want the larger community (1,985 stars) or its MIT licence terms. Choose concord-mcp if its feature set, stack or MIT licence fits better. Both are self-hostable.