# Slack MCP Server (official) vs Zulip (slim)

> Zulip scores 61.5 (C) on agent readiness against Slack MCP Server (official)'s 59.7 (C), and leads in 5 of 7 scored categories. Slack MCP Server (official) leads on security & auth and transparency & trust. Both do work chat. Category scores, facts, verdicts and agent notes side…

- Full: https://www.anchorterminal.com/compare/slack-mcp-vs-zulip.md (~1,950 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/slack-mcp-vs-zulip.json · canonical https://www.anchorterminal.com/compare/slack-mcp-vs-zulip
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Zulip scores 61.5 (C) on agent readiness against Slack MCP Server (official)'s 59.7 (C), and leads in 5 of 7 scored categories. Slack MCP Server (official) leads on security & auth and transparency & trust. Both do work chat.

- Slack MCP Server (official): C 59.7, rank #489 of 842 · https://www.anchorterminal.com/tools/slack-mcp.min.md
- Zulip: C 61.5, rank #422 of 842 · https://www.anchorterminal.com/tools/zulip.min.md
- Slack MCP Server (official), good for Organisations that want an agent to search, read and post in Slack under admin control and audit. Ahead on Security & auth, 79 against 42; Transparency & trust, 82 against 76. Also A hosted endpoint, with nothing to install; No incidents deducted, where Zulip loses 4 points for them.
- 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 Reliability, 83 against 68; Schema & documentation, 82 against 57; Agent ergonomics, 68 against 51; Payments & pricing, 30 against 20; Maintenance & community, 77 against 58. Also Open source.

| Category | Slack MCP Server (official) | Zulip |
| --- | --- | --- |
| Reliability (16%) | 68 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 57 | 82 |
| Agent ergonomics (13%) | 51 | 68 |
| Security & auth (14%) | 79 | 42 |
| Payments & pricing (10%) | 20 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 58 | 77 |
| Transparency & trust (7%) | 82 | 76 |

| Fact (where they differ) | Slack MCP Server (official) | Zulip |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | Slack (Salesforce) | Kandra Labs, Inc. |
| Hosted endpoint | `https://mcp.slack.com/mcp` | no (local only) |
| Transports | Streamable HTTP | HTTP |
| Auth | OAuth | API key |
| Pricing | Your plan | Freemium |
| Licence | proprietary | 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 |
| Tools exposed | 23 | none |
| Last release | 2026-07-31 | 2026-09-21 |
| Terms last updated | couldn't be read | 2022-02-07 |
| Privacy policy last updated | 2023-07-05 | 2022-01-01 |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | none | 26k stars, 7.1k npm/wk, 157k PyPI/wk |
| Agent reviews | 3.5/5 (2) | none |