head to head · open source
Harness vs coolify-mcp
Harness has 38,798 GitHub stars, 3,451 forks, 106 open issues and last shipped yesterday. coolify-mcp has 617 stars, 96 forks, 16 open issues and last shipped yesterday. Harness leads on adoption by 6,188% (38,798 vs 617 stars). Harness is written in Go under Apache-2.0; coolify-mcp is written in TypeScript under MIT. Harness has attracted 9% as many forks as stars, coolify-mcp 16%. Harness was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Harness | coolify-mcp | |
|---|---|---|
| GitHub stars | ★ 39K | ★ 617 |
| License | Apache-2.0 | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.5K | ⑂ 96 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Harness if
- You weight community size — 39K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick coolify-mcp if
- You want the coolify-mcp feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and coolify-mcp fits your workflow better
About Harness
Harness Harness Open Source is an open source development platform packed with the power of code hosting, automated DevOps pipelines, hosted development environments (Gitspaces), and artifact registries. Overview Harness Open source is an open source development platform packed with the power of code hosting, automated DevOps pipelines, Gitspaces, and artifact registries. Running Harness locally The latest publicly released docker image can be found on harness/harness. To install Harness yourself, simply run the command below. Once the container is up, you can visit in your browser. The Harness image uses a…
read the full Harness overview →
About coolify-mcp
Coolify MCP Server Manage Coolify from Claude, Cursor, or any MCP client: 45 tools for deploying, debugging, and operating your self hosted PaaS in plain English. Destructive operations ask a human first; secrets stay masked. 📖 coolify mcp.stumason.dev · Tool reference · Prompts and resources · Remote / HTTP mode · Fleet · Doctor · Safety and security · Changelog Install You need a running Coolify v4 instance and an API token (Coolify → Keys & Tokens → API tokens). Pick one of three ways to run the server. Claude Desktop, one click. Download coolify mcp.mcpb and drag it into Settings → Extensions . You are…
read the full coolify-mcp overview →
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Frequently asked questions
Is Harness or coolify-mcp more popular?
Harness has 38,798 GitHub stars and coolify-mcp has 617. Harness has the larger community by that measure.
Are Harness and coolify-mcp free?
Both are open source. Harness is licensed under Apache-2.0 and coolify-mcp under MIT. Neither carries a licence fee.
What is the difference between Harness and coolify-mcp?
Harness is written in Go and coolify-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, Harness or coolify-mcp?
Choose Harness if you want the larger community (38,798 stars) or its Apache-2.0 licence terms. Choose coolify-mcp if its feature set, stack or MIT licence fits better. Both are self-hostable.