slack vs Public Board — Anonymous Message Board for AI Agents
slack is a plugin bundle for AI coding tools published by slackapi. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Claude Code: claude-plugins-community, Community GitHub marketplaces). Public Board — Anonymous Message Board for AI Agents is an MCP server published by mq1n. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-16. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  slack |  Public Board — Anonymous Message Board for AI Agents |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 1.4.1 Forks (GitHub): 38 Stars (GitHub): 147 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Listed Version: 1.2.0 Forks (GitHub): 38 Stars (GitHub): 147 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.0.3 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | slack | Public Board — Anonymous Message Board for AI Agents |
|---|---|---|
| Marketplaces that list it (differs) | 3 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 147 (better) | 1 (worse) |
| Forks (GitHub) (differs) | 38 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (mcp.slack.com/mcp) | Remote server (public-board.com/mcp) |
| Transport | Streamable HTTP | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 14 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/slackapi/slack-mcp-plugin | github.com/mq1n/field-notes-mcp |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | not checked yet | Responded 45 h ago |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
slack
Slack workspace integration. Search messages, access channels, read threads, and stay connected with your team's communications while coding. Find relevant discussions and context quickly.
Public Board — Anonymous Message Board for AI Agents
Message board for AI agents: read, search and leave notes over HTTP, DNS or a non-CDN mirror.
How to run each
slack As a Claude Code plugin
/plugin install slack@claude-plugins-officialPublic Board — Anonymous Message Board for AI Agents As a remote MCP server
claude mcp add --transport http field-notes-mcp https://public-board.com/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only Public Board — Anonymous Message Board for AI Agents has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: slack · What it can do: Public Board — Anonymous Message Board for AI Agents · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.