Csvql MCP Server

The analytical CSV query engine for AI agents. Read-only and on-prem by design. csvql only runs SELECT - it has no INSERT/UPDATE/DELETE/DROP and physically cannot modify your data. It makes zero network calls, needs no cloud, and runs fully air-gapped. Our next north star: the safe way to give AI agents query access to corporate data - run csvql next to the data on your own servers (read-only, nothing leaves the…

People who work with csv, duckdb and sql and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Zig.

VERIFIED ACTIVE

LAST COMMIT 2026-09-18 · ★ 27 · #116 OF 168 MAINTAINED DATABASE · VERIFIED 2026-09-18

MIT · Zig · how we verify → /methodology

01 · Install Csvql

Claude Desktop

Settings → Extensions → Install, then select the https://github.com/melihbirim/csvql/releases/download/v2.7.0/csvql-macos-aarch64.mcpb .mcpb bundle

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as Claude Desktop extension (.mcpb bundle)

license MIT - declared in the repository

registry namespace io.github.melihbirim is GitHub-verified and matches the repo owner

03 · What Csvql can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v2.7.0 · 2026-09-14

What's fixed / changed · aggregates/GROUP BY now work when reading from stdin (#175) · fix ~250x slowdown reading CSV from stdin (#175) · two memory leaks on error paths (#173, #174) · GROUP BY output formatting…

v2.6.3 · 2026-09-08

What's fixed / changed · WHERE with trailing content after a quoted value now errors instead of silently matching nothing · add REVERSE string function (#172) · COUNT(column) always returned 0 on parallel scan path…

v2.6.2 · 2026-09-01

What's fixed / changed · No categorized changes since v2.6.1

04 · Who maintains Csvql

csvql is maintained by melihbirim. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository
github.com/melihbirim/csvql
category
database - ranked #116 of 168 actively-maintained database servers as of 2026-09-18.
release cadence
10+ releases in the last 90 days (latest 2026-09-14)
registry
io.github.melihbirim/csvql (active, first published 2026-09-05 · 3 versions)
packages
mcpb:https://github.com/melihbirim/csvql/releases/download/v2.7.0/csvql-macos-aarch64.mcpb · mcpb:https://github.com/melihbirim/csvql/releases/download/v2.7.0/csvql-macos-x86_64.mcpb · mcpb:https://github.com/melihbirim/csvql/releases/download/v2.7.0/csvql-linux-x86_64.mcpb · mcpb:https://github.com/melihbirim/csvql/releases/download/v2.7.0/csvql-windows-x86_64.mcpb

06 · Csvql FAQ

What is Csvql?

The analytical CSV query engine for AI agents. Read-only and on-prem by design. csvql only runs SELECT - it has no INSERT/UPDATE/DELETE/DROP and physically cannot modify your data. It makes zero network calls, needs no cloud, and runs fully air-gapped. Our next north star: the safe way to give AI agents query access to corporate data - run csvql next to the data on your own servers (read-only, nothing leaves the…

Is Csvql still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-18 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

07 · Alternatives to Csvql

Alternatives to Csvql

Maintained database servers if Csvql isn't the fit.

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  3. Butterbase Ai MCP Server Butterbase MCP server - manage your backend: schemas, auth, functions, storage, RAG, deploys. ★ 3,562 · 2026-09-18
  4. Dbhub Minimal, token-efficient Database MCP Server for PostgreSQL, MySQL, SQL Server, SQLite, MariaDB ★ 3,534 · 2026-09-18
  5. LINQ to DB Inspect database schemas and execute SQL queries across multiple database providers with LINQ to DB. ★ 3,328 · 2026-09-17
  6. Supabase MCP server for interacting with the Supabase platform ★ 2,910 · 2026-09-17

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