# Mattermost vs Zulip (slim)

> Mattermost scores 65.8 (B) to Zulip's 61.5 (C) for team chat. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/mattermost-vs-zulip.md (~2,150 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/mattermost-vs-zulip.json · canonical https://www.anchorterminal.com/compare/mattermost-vs-zulip
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Mattermost scores 65.8 (B) on agent readiness against Zulip's 61.5 (C), and leads in 3 of 7 scored categories. Zulip leads on schema & documentation and agent ergonomics. Both do team chat.

- Mattermost: B 65.8, rank #310 of 950 · https://www.anchorterminal.com/tools/mattermost.min.md
- Zulip: C 61.5, rank #466 of 950 · https://www.anchorterminal.com/tools/zulip.min.md
- Mattermost, good for A team that runs its own chat server and wants an agent to read channels, post, search and manage members through a bot account, including in air-gapped networks. Ahead on Security & auth, 63 against 42; Payments & pricing, 50 against 30; Maintenance & community, 89 against 77.
- Zulip, good for A team that already talks in Zulip and wants an agent to read channels and topics, post, react and manage users through a bot. Ahead on Schema & documentation, 82 against 76; Agent ergonomics, 68 against 63.

| Category | Mattermost | Zulip |
| --- | --- | --- |
| Reliability (16%) | 83 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 76 | 82 |
| Agent ergonomics (13%) | 63 | 68 |
| Security & auth (14%) | 63 | 42 |
| Payments & pricing (10%) | 50 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 89 | 77 |
| Transparency & trust (7%) | 75 | 76 |

| Fact (where they differ) | Mattermost | Zulip |
| --- | --- | --- |
| Vendor | Mattermost, Inc. | Kandra Labs, Inc. |
| Auth | OAuth or key | API key |
| Licence | Open core. Team Edition is MIT as a compiled binary. The source is AGPL v3 or a commercial licence, with admin tools and configuration files under Apache 2.0. Enterprise Edition, which the free Entry edition runs, is under a commercial licence. The Agents plugin is Apache 2.0 | Apache 2.0 for the server. The hosted Zulip Cloud service is under Kandra Labs' Terms of Service. The npm package zulip-js is MIT |
| Last release | 2026-10-08 | 2026-09-21 |
| Terms last updated | no date given | 2022-02-07 |
| Privacy policy last updated | no date given | 2022-01-01 |
| Terms restrict benchmarking | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 39k stars, 7.7k npm/wk | 26k stars, 7.1k npm/wk, 157k PyPI/wk |