head to head · open source
Milvus vs mcp-toolbox
Milvus has 46,145 GitHub stars, 4,254 forks, 1,405 open issues and last shipped yesterday. mcp-toolbox has 16,443 stars, 1,727 forks, 292 open issues and last shipped yesterday. Milvus leads on adoption by 181% (46,145 vs 16,443 stars). Milvus is written in Go under Apache-2.0; mcp-toolbox is written in Go under Apache-2.0. Milvus has attracted 9% as many forks as stars, mcp-toolbox 11%. mcp-toolbox was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), 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
| Milvus | mcp-toolbox | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 16K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Go |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 4.3K | ⑂ 1.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Milvus if
- You weight community size — 46K 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 mcp-toolbox if
- You want the mcp-toolbox feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and mcp-toolbox fits your workflow better
About Milvus
Milvus is a high performance, cloud native vector database written in Go and C++, designed to power AI applications by efficiently storing, indexing, and searching large scale unstructured data such as text, images, and multi modal embeddings. It implements hardware accelerated approximate nearest neighbor (ANN) search using algorithms like HNSW, FAISS, and DiskANN, and supports both real time streaming updates and batch ingestion. Milvus lives in the GenAI infrastructure ecosystem, serving as the persistent storage and retrieval layer for embedding based workloads including RAG, recommendation, and image search.…
read the full Milvus overview →
About mcp-toolbox
MCP Toolbox for Databases is an open source Model Context Protocol (MCP) server, written in Go and licensed under Apache 2.0, that connects AI agents, IDEs, and applications directly to enterprise databases.
read the full mcp-toolbox overview →
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Frequently asked questions
Is Milvus or mcp-toolbox more popular?
Milvus has 46,145 GitHub stars and mcp-toolbox has 16,443. Milvus has the larger community by that measure.
Are Milvus and mcp-toolbox free?
Both are open source. Milvus is licensed under Apache-2.0 and mcp-toolbox under Apache-2.0. Neither carries a licence fee.
What is the difference between Milvus and mcp-toolbox?
Milvus is written in Go and mcp-toolbox in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Milvus or mcp-toolbox?
Choose Milvus if you want the larger community (46,145 stars) or its Apache-2.0 licence terms. Choose mcp-toolbox if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.