deepset-ai/haystack

Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.

26.7k stars · 3.3k forks · Python

Healthy

Healthy: actively maintained by 98 people, no known risks.

Why

No rule fired.

What would change this

Partly checked: maintenance (Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.; Authors in the last 90 days are counted from the sampled commits only.)
A dormant maintenance status, a deprecated or archived package, a successor link, or a critical advisory would change this.

Maintenance

Partial

Active

Human commits, 30 days: 154
Human commits, 90 days: 409
Human commits, 365 days: 1.2k
Bot share of commits, 365 days: 46%
Last commit: Oct 14, 2026 (14 hours ago)
Last human commit: Oct 14, 2026 (16 hours ago)
Authors, 90 days: 98
Last release: Oct 1, 2026 (13 days ago)
Median PR merge time: under an hour

Responsiveness: of 15 recent issues, 87% got a maintainer reply. Median first response: 3 days.

Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.
Authors in the last 90 days are counted from the sampled commits only.

Sources: Commits, Releases, Merged pull requests, Issues

People

Complete

Owner: Organization
Commits sampled: 271 since Oct 14, 2025
Authors for half of commits: 9
Authors for 80% of commits: 44
Contributors: 447

Top committers

sjrl: 16% of commits
julian-risch: 10% of commits
anakin87: 8% of commits
ShousenZHANG: 5% of commits
Harsh23Kashyap: 3% of commits

Shares come from the newest sampled commits, since the commit sample is capped.

Sources: Commits, Contributors

Stars

Complete

Organic, confidence high

Bars show stars gained each week. Orange bars overlap a burst.

Bursts

May 6, 2020 to May 6, 2020: about 23 more stars than usual, peak 24 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Aug 1, 2020 to Aug 3, 2020: about 88 more stars than usual, peak 72 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Sep 21, 2020 to Sep 21, 2020: about 23 more stars than usual, peak 25 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Dec 8, 2021 to Dec 17, 2021: about 530 more stars than usual, peak 170 in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in forks.
Jan 19, 2022 to Jan 20, 2022: about 63 more stars than usual, peak 54 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Sep 13, 2022 to Sep 15, 2022: about 81 more stars than usual, peak 55 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Oct 6, 2022 to Oct 8, 2022: about 209 more stars than usual, peak 105 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Apr 3, 2023 to Apr 6, 2023: about 144 more stars than usual, peak 87 in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in forks, a jump in issues and pull requests.
Jul 11, 2023 to Jul 19, 2023: about 576 more stars than usual, peak 188 in one day, a shape we can't classify. Outside explanation: a jump in forks, a jump in issues and pull requests.
Sep 25, 2023 to Sep 26, 2023: about 93 more stars than usual, peak 69 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Aug 23, 2024 to Sep 3, 2024: about 981 more stars than usual, peak 219 in one day, a shape we can't classify. Outside explanation: a jump in forks.
Sep 14, 2025 to Sep 17, 2025: about 338 more stars than usual, peak 200 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Jun 24, 2026 to Jun 24, 2026: about 51 more stars than usual, peak 61 in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in issues and pull requests.

2 stars GitHub has since removed (tracked since Oct 14, 2026).

Anyone can buy stars for any repo; bursts alone don't prove the owner did.

The star history looks organic.

Sources: How star history is analyzed

Risk

Complete

Flags

No risk flags.

License

Now: Apache-2.0 (OSI-approved)
A year ago: Apache-2.0 (OSI-approved)

Packages

haystack-ai (PYPI): latest 3.4.0.dev20261014000321, published Oct 14, 2026
Advisories for the latest version: none listed

Package and advisory data: deps.dev and OSV.

OpenSSF Scorecard: 9.2 out of 10 (via deps.dev).

Sources: GitHub: deepset-ai/haystack, deps.dev: PyPI haystack-ai

Badge

Add this to a README to show the current verdict:

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Earlier verdicts

Oct 14, 2026: Healthy
Oct 14, 2026: Healthy

Computed 9 hours ago · method 2026.10.2