App contender
Halv — Halber Verbrauch. Über mehrere Coding-Agenten hinweg.
Half the usage. Across multiple coding agents.
The short version
What is Halv — Halber Verbrauch. Über mehrere Coding-Agenten hinweg.?
Halv is a local-only workspace tool that sits in front of coding agents to reduce token usage by compressing requests before they are sent to the model. It operates on the user's machine, managing sessions for existing agent subscriptions without requiring new API keys or storing user credentials.
Halv rewrites agent requests locally to remove redundant context, such as duplicated files, stale history, and repeated instructions, aiming to reduce token consumption while maintaining the same model answers.
Product capabilities
Key features
- Context compression engine
- Crux code index for codebase mapping
- Command filtering for noisy output
- Live savings meter
- Pro mode with embedded terminals
- Support for up to 32 live panes in one window
- Subagent fan-out with activity tracking
- Local OS sandbox for shell commands
- Per-project write approvals
- Turn diff and revert functionality
Ways to use it
Use cases
- Reducing token usage for coding agents
- Managing multiple agent sessions in one workspace
- Coding and research tasks
- Tracking token savings per agent and per session
Who it is built for
Best for
At a glance
Strengths & considerations
Strengths
- Reduces token usage by removing redundant context
- Operates locally; credentials stay within the agent's CLI
- Provides transparent receipts showing cost savings per answer
- Compatible with existing agent subscriptions
Things to consider
- Requires existing subscriptions to supported coding agents
- Basic plan includes a monthly cap on savings
- Compression pauses when the monthly savings cap is reached on the Basic plan
Plan information
Pricing
Halv offers two paid tiers: a Basic plan at $2/month with a monthly savings cap, and an Unlimited plan at $10/month with no savings cap. Both plans include a 7-day free trial.
No free tier, but both paid plans include a 7-day free trial.
Prices and plans can change. Confirm current terms on the official pricing page before purchasing.
Compatibility & availability
Technical details
Integrations
Platforms & channels
Official destinations
Links
Quick answers
Halv — Halber Verbrauch. Über mehrere Coding-Agenten hinweg. FAQ
Do I need API keys?
No. Halv runs each agent on the subscription you already hold through the agent's own login, though using an API key is also supported.
Is my code safe?
Yes. Everything runs locally on your machine, and nothing leaves except the model call itself. Shell commands run in an OS sandbox.
Is Halv only for programmers?
No. The chat view works for any question, writing, or research.
How is this different from running the agent's CLI myself?
Halv adds a compression engine, the Crux code index, a project sandbox, and a live savings meter while keeping your existing workflow and agent plan.
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Research trail
Official sources
These pages were used for the factual profile above. They may change after the research date.
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