Does Code Index MCP work with Claude Code?

Q: Does Code Index MCP work with Claude Code?

Yes. In our test on 2026-10-13 (Claude Code 2.1.296 (Claude Code), plan: Claude Pro), Code Index MCP passed install, connect, tools and an agent task.

Yes. Code Index MCP passed every step of our test in Claude Code on Oct 13, 2026: it installed, connected, its tools were visible, and an agent used it to finish a real task.

Result

ResultPassed

Date testedOct 13, 2026

Plan tested onClaude Pro

App version2.1.296 (Claude Code)

Modelhaiku

Steps

install OK
connected OK
tools visible OK
agent task: find definition OKsymbol lookup + one cross-file reference in a 2-file Python repo (git history has 1 commit, so git-only tools can answer via git_show)

From our own harness run, not the maker’s claims. How we test.

What happened in this run

Install config we used

claude mcp add -s local code-index -- uvx code-index-mcp

Connection check

code-index: uvx code-index-mcp - ✔ Connected

Tools check

verified via task step: agent saw and called the server's tools

Agent task: find definition

Tool calls, in order: mcp__code-index__set_project_path, mcp__code-index__search_code_advanced

Raw details from our harness log for this run. Secrets redacted.

Set it up in Claude Code

Copy-paste config for every app is on the Code Index MCP page. Not connecting? Claude Code MCP troubleshooting.

Other apps we tested it in: Cursor (passed) · Claude Desktop (passed) · ChatGPT (Codex) (passed).

All MCP servers tested in Claude Code