MCP Toolbox for Databases (Google) vs Chroma MCP
Both are databases & vector stores MCP servers, and we ran both through the same test (roundtrip) in each app. MCP Toolbox for Databases (Google) passed 3 of 3 apps we tested it in; Chroma MCP passed 0 of 3.
Test results side by side
| MCP Toolbox for Databases (Google) | Chroma MCP | |
|---|---|---|
| Claude Code | Passed 2026-10-22 | Failed 2026-10-19 |
| Cursor | Passed 2026-10-22 | Failed 2026-10-19 |
| Claude Desktop | Not tested yet | Not tested yet |
| ChatGPT (Codex) | Passed 2026-10-22 | Failed 2026-10-22 |
| Tools exposed (protocol check) | 2 tools | — |
| GitHub stars | 16,664 | 599 |
| License | Apache-2.0 | Apache-2.0 |
| Last push | 2026-10-14 | 2025-09-17 |
Results from our own harness runs, dated per cell. Stars and last push from GitHub at our last data refresh. We don’t pick a winner here: which one fits depends on your app and setup.
What each does
MCP Toolbox for Databases (Google): Google's open-source server that exposes databases (Postgres, MySQL, BigQuery, Spanner and many more) to agents as tools.
Chroma MCP: Chroma's server for creating collections and storing and querying documents in a Chroma vector database, local or cloud.
