Your AI coding tool
wastes 96% of tokens
reading code.

Arc gives it the same understanding in 20 lines instead of 300. Works with Claude Code, Cursor, Windsurf, and any MCP client.

96%
fewer tokens exploring code
21
languages supported
<1s
response time

Real benchmark: understanding a billing module

Without Arc

21,934
tokens across 8 file reads
Reading full files to find what you need

With Arc

836
tokens across 6 tool calls
Signatures, structure, dependencies only

How it works

01

Sign up

Get your API key instantly. Free tier: 3 repos, 10K calls/month.

02

Connect repos

Install our GitHub App. We index your code on every push.

03

Add one line

Paste the MCP URL into your Claude Code or Cursor config.

04

Save tokens

Your AI tool uses Arc automatically. Faster, cheaper sessions.

Tools your AI gets

find_symbol

Locate any function, class, or type across your repos. Returns file, line, and signature — no full file read needed.

explain_file

Understand what a file does in ~20 lines: public API, dependencies, and what depends on it.

Works with Claude Code, Cursor, Windsurf, Cline, Continue, OpenCode, and any MCP-compatible tool.

Get your API key

Free tier. No credit card.

Free: 3 repos, 10K calls/month. Upgrade anytime.