compare
MaxKB vs Sim
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | MaxKB | Sim |
|---|---|---|
| Language | Python | TypeScript |
| Licence | GPL-3.0 | Apache-2.0 |
| Stars | 23k | 30k |
| Latest | v2.10.6-lts | v0.9.14 |
| Last push | 2026-10-04 | 2026-10-06 |
| Release cadence | about 17 days between releases | about 1 day between releases |
| Active contributors | 16 commit authors on the default branch in the last 90 days | 7+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Microsoft Copilot Studio. Alternatives to Microsoft Copilot Studio →
PartialMaxKBKnowledge-base agents with a workflow editor, embeddable in a website.
PartialSimA visual builder for agent workflows with many integrations, on your own server.
MaxKB
- v2.10.6-lts2026-09-03Security: Fixed a security vulnerability where Chat file uploads could spoof APPLICATION attribution and be read anonym…
- v1.10.15-lts2026-08-11Security Vulnerability: Fixed flaws in permission verification to block a high-risk privilege escalation vulnerability…
- v2.10.5-lts2026-08-06Security Vulnerability: Fixed missing‑owner‑check at chat‑sharing link endpoint, where chat tokens could be abused to s…
- v2.10.4-lts2026-07-16Vulnerability: Fixed a system file permission flaw that allowed anonymous access to resources;
- v2.10.3-lts2026-07-03Knowledge Base: Added visual progress display for file uploads; files that failed to upload support one-click re-upload.
Sim
- v0.9.142026-10-05fix(mothership): preserve workflow identity in background confirmations (#8615)
- v0.9.132026-10-04feat(library): Slack AI Agent Security: Permissions, Data, and Audit Guide (#8600)
- v0.9.122026-10-03feat(forks): compare last synced source deployments (#8586)
- typescript-sdk-v0.2.12026-10-03TypeScript SDK v0.2.1
- python-sdk-v0.2.12026-10-03Python SDK v0.2.1
MaxKB
✓ signed The latest release, v2.10.6-lts, carries a signature GitHub verified.
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Sim
✓ signed The latest release, v0.9.14, carries a signature GitHub verified.
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