head to head · open source
mcp-toolbox vs Apache Druid
mcp-toolbox has 16,792 GitHub stars, 1,787 forks, 292 open issues and last shipped yesterday. Apache Druid has 14,093 stars, 3,813 forks, 784 open issues and last shipped yesterday. mcp-toolbox leads on adoption by 19% (16,792 vs 14,093 stars). mcp-toolbox is written in Go under Apache-2.0; Apache Druid is written in Java under Apache-2.0. mcp-toolbox has attracted 11% as many forks as stars, Apache Druid 27%. Apache Druid 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
| mcp-toolbox | Apache Druid | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 14K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.8K | ⑂ 3.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick mcp-toolbox if
- You weight community size — 17K 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 Apache Druid if
- You want the Apache Druid feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and Apache Druid fits your workflow better
About mcp-toolbox
MCP Toolbox for Databases MCP Toolbox for Databases is an open source Model Context Protocol (MCP) server that connects your AI agents, IDEs, and applications directly to your enterprise databases. It serves a dual purpose : 1. Ready to use MCP Server (Build Time): Instantly connect Gemini CLI, Google Antigravity, Claude Code, Codex, or other MCP clients to your databases using our prebuilt generic tools . Talk to your data, explore schemas, and generate code without writing boilerplate. 2. Custom Tools Framework (Run Time): A robust framework to build specialized, highly secure AI tools for your production…
read the full mcp-toolbox overview →
About Apache Druid
Apache Druid Druid is a high performance real time analytics database. Druid's main value add is to reduce time to insight and action. Druid is designed for workflows where fast queries and ingest really matter. Druid excels at powering UIs, running operational (ad hoc) queries, or handling high concurrency. Consider Druid as an open source alternative to data warehouses for a variety of use cases. The design documentation explains the key concepts. Getting started You can get started with Druid with our local or Docker quickstart. For Kubernetes deployments, the druid operator is maintained in a separate…
read the full Apache Druid overview →
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Frequently asked questions
Is mcp-toolbox or Apache Druid more popular?
mcp-toolbox has 16,792 GitHub stars and Apache Druid has 14,093. mcp-toolbox has the larger community by that measure.
Are mcp-toolbox and Apache Druid free?
Both are open source. mcp-toolbox is licensed under Apache-2.0 and Apache Druid under Apache-2.0. Neither carries a licence fee.
What is the difference between mcp-toolbox and Apache Druid?
mcp-toolbox is written in Go and Apache Druid in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, mcp-toolbox or Apache Druid?
Choose mcp-toolbox if you want the larger community (16,792 stars) or its Apache-2.0 licence terms. Choose Apache Druid if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.