Private Beta · Claude Code & opencode · 25+ Languages

60–70% of your agent's tokens go to finding the code.
Hand it the map instead.

SourceIndex hands your agent the minimal code context a task actually needs — the exact files, functions, and line ranges. That's several dollars back on a single coding task, and 40% less time waiting.

3.9× Cheaper (Claude Code)
5.2× Cheaper (OpenCode)
16/16 Pairs Measured Cheaper
25+ Languages
Watch the Demo Get Early Access

How It Works

Index once, search per task, let the agent focus on building.

1

Set Up Once

pip install sourceindex, then sourceindex init in your repo. It detects Claude Code or opencode automatically, indexes every file and function, and git hooks keep the index fresh as you commit.

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2

Search & Select

For each task, SourceIndex finds the relevant files and functions and builds a targeted roadmap — down to line ranges.

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3

Your Agent Just Works

Day-to-day you change nothing. Open your agent as usual — it pulls the roadmap on its own, skips exploration, and starts implementing immediately.

See It in Action

Index once, then watch your agent go straight to the right files instead of hunting for them.

Built for Real Codebases

See what it does to cost and turns on real feature commits.

25+ Languages

Python, TypeScript, Rust, Go, Java, C/C++, Ruby, PHP, Swift, Kotlin, and more.

Nothing to Configure

One SourceIndex key is all you need. Our hosted backend handles the LLM calls — no provider accounts, no model picking, no extra bills.

Zero Workflow Change

After sourceindex init, day-to-day you do nothing. Your agent discovers and uses the index on its own.

Incremental Updates

Only changed files are re-indexed. Git hooks keep the index fresh with every commit.

AST-Grounded

Line ranges validated against tree-sitter AST. Precise read windows for the agent.

Claude Code & opencode

First-class integration with both, auto-detected per repo. More agents on the way.

Get Early Access

SourceIndex is in private beta — we're onboarding our first small cohort of testers now. Tell us about yourself and we'll get you set up with an access key.

Request Access