Claude Code ecosystem

codeseek

Call graphs and semantic search, from the terminal

Visit official page 日本語で詳しく見る

Popularity

★ 763

Last update

August 2026

License / pricing

MIT

What it does

AST-based analysis that answers who calls this and what does this call, plus embedding search so a vague question like "how does the caching work" lands on the right function. Registers itself as an MCP tool for Claude Code or Codex, and can reindex on git commits. The setup wizard picks your embedding model up front — choose a local one if the code is work product, because a hosted provider means it goes there. MIT.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

Setup difficultySome setup needed
Command lineRequired
API keyRequired
Sends data onlineYes

Judged automatically from the project's own metadata. Always confirm on the official page.

codeseek FAQ

Is codeseek free?: codeseek itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.
Do I need to install anything or write code to use codeseek?: It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.
Does codeseek work on a phone?: No. It needs a computer.
Can I use codeseek commercially?: The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
codeseek (this page)	Required	Required	Yes	No	Yes
Claude Code	Required	Required	Yes	No	Not verified
rtk	Required	Not needed	No	No	Yes
SocratiCode	Required	Not needed	Yes	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

Other claude code ecosystem tools

Claude Code

Anthropic's AI coding partner that lives in your terminal

rtk

Compresses command output before your agent pays to read it

SocratiCode

Gives any AI tool a working understanding of your codebase

grepai

grep, but it understands what you meant

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What it does

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

codeseek FAQ

Is codeseek free?

codeseek itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.

Do I need to install anything or write code to use codeseek?

It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.

Does codeseek work on a phone?

No. It needs a computer.

Can I use codeseek commercially?

The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
codeseek (this page)	Required	Required	Yes	No	Yes
Claude Code	Required	Required	Yes	No	Not verified
rtk	Required	Not needed	No	No	Yes
SocratiCode	Required	Not needed	Yes	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.