Best databases & vector stores MCP server for Claude Code, tested

Dated results

• Qdrant MCP passed in Claude Code on 2026-10-20 (Claude Code 2.1.296, mcp-server-qdrant 0.8.1, connected in 5.2s). Full result
• DBHub passed in Claude Code on 2026-10-21 (Claude Code 2.1.296, @bytebase/dbhub 1.5.0, connected in 2.4s). Full result
• ClickHouse MCP passed in Claude Code on 2026-10-23 (Claude Code 2.1.296, mcp-clickhouse 0.7.0, connected in 3.3s). Full result
• MCP Toolbox for Databases (Google) passed in Claude Code on 2026-10-22 (Claude Code 2.1.296, @toolbox-sdk/server 1.15.0, connected in 2.3s). Full result
• MCP SQLite (jparkerweb) passed in Claude Code on 2026-10-15 (Claude Code 2.1.296, server reported v1.0.0, connect time not recorded). Full result
• Chroma MCP failed in Claude Code on 2026-10-19 (Claude Code 2.1.296, chroma-mcp 0.2.6, exited after 0.7s, never connected). Full result
• SQLite (reference, archived) failed in Claude Code on 2026-10-15 (Claude Code 2.1.296, package version not recorded, connect time not recorded). Full result

Why Qdrant MCP is the candidate

Qdrant MCP passed every step in Claude Code. It is the group’s site-wide candidate (judged 2026-10-20): Stored a fresh code and searched it back from a local Qdrant folder (no Qdrant server or account) in both Claude Code and Cursor, in 4 calls in total. MCP SQLite also passed both, with 9 calls. The archived reference SQLite server and Chroma MCP failed to start in both clients on Oct 15 (their published uvx commands crash on current dependencies). MongoDB and MCP Toolbox need a running database server and aren't tested. Confirmed Oct 20, 2026: a second run in Claude Code and Cursor passed again (mcp-server-qdrant 0.8.1), and it also passed in ChatGPT (Codex) on Oct 20.

Provisional: based on one dated run per app (no repeat runs yet), so treat it as a candidate, not a final pick. How we test.

What failed or is partial in Claude Code

• Chroma MCP: failed on 2026-10-19. Recorded reason: no successful call to this server's tools; no tool result containing ['TP-A58C2C']
• SQLite (reference, archived): failed on 2026-10-15. Recorded reason: no successful call to this server's tools; no tool result containing ['TP-98BA5B']

Install in Claude Code

The exact snippet we tested is on the Qdrant MCP page (pick the Claude Code tab). Not connecting? Claude Code MCP troubleshooting.

Not tested in Claude Code yet

MongoDB MCP, Apache Doris MCP Server, Supabase MCP, Neo4j MCP servers (Neo4j Labs), MotherDuck / DuckDB MCP, Neon MCP, Redis MCP, Milvus MCP Server, Meilisearch MCP, HutchDB, Faucet, xerj, pREST, Postgres MCP Pro. Listed from their source; no result in Claude Code yet.

Questions

What is the best databases & vector stores MCP server for Claude Code?

In ToolPassed's hands-on tests in Claude Code, Qdrant MCP is our provisional candidate for databases & vector stores: it passed install, connect, tools and an agent task on 2026-10-20. We ran 7 databases & vector stores MCP servers in Claude Code; 5 passed every step; not a pass: Chroma MCP (failed), SQLite (reference, archived) (failed).

Does Qdrant MCP work with Claude Code?

Qdrant MCP passed in Claude Code on 2026-10-20 (Claude Code 2.1.296, mcp-server-qdrant 0.8.1, connected in 5.2s).

Does Chroma MCP work with Claude Code?

No, not in our test: Chroma MCP failed in Claude Code on 2026-10-19 (Claude Code 2.1.296, chroma-mcp 0.2.6, exited after 0.7s, never connected). Recorded reason: no successful call to this server's tools; no tool result containing ['TP-A58C2C']

Does SQLite (reference, archived) work with Claude Code?

No, not in our test: SQLite (reference, archived) failed in Claude Code on 2026-10-15 (Claude Code 2.1.296, package version not recorded, connect time not recorded). Recorded reason: no successful call to this server's tools; no tool result containing ['TP-98BA5B']