Overview
Haystack is a agents tool that open-source llm framework. It's built for solo founders who want results without stitching together five separate apps. Compared to other agents options in our directory, Haystack stands out for an active community, and its free model (Free) keeps it within reach for most workflows. Real users have left 620 reviews averaging 4.5 out of 5, which puts it firmly in the upper tier of tools we track.
Key features
- Tool use across 100+ apps
- Self-hostable runtime
- Audit logs of every action
- Scheduled and triggered runs
Use cases
- Founders delegate inbox triage, scheduling, and follow-ups.
- Researchers run multi-step browsing tasks unattended.
Pros
- Genuinely usable without ever paying
- Active community and shared resources
Cons
- Output style can feel generic without careful prompting
- Steeper learning curve than a basic competitor
- Quality varies on edge cases — review outputs before shipping
Pricing
| Tier | Price | What's included |
|---|---|---|
| Free | $0 | Full product, fair-use limits. |
| Starter / Pro | Free | Higher limits, priority output, removed watermarks, and core team features. |
| Team / Business | Custom | SSO, audit logs, dedicated support, and volume pricing for organizations. |
How it compares
If you're weighing Haystack against alternatives, the closest competitors in the Agents category are AutoGPT and AgentGPT. AutoGPT (Free, Free) tends to win on ecosystem maturity, while Haystack usually pulls ahead on an active community. For most teams the decision comes down to budget and which integrations you already rely on.
FAQ
Does Haystack offer a free trial?
Haystack is free to use — no trial needed. You can sign up and start using it without entering a payment method.
Does Haystack have an API?
Most agents tools at this tier ship an API. Check Haystack's docs at https://haystack.deepset.ai for the latest endpoints, rate limits, and SDKs.
Is Haystack good for teams?
Haystack can be used by teams, though some collaboration features may require its paid tier.