Slack (Archived) vs Google Calendar
Slack (Archived) is an MCP server published by modelcontextprotocol. Marketplaces we read that list it: 1 (Docker MCP Catalog). Google Calendar is a plugin bundle for AI coding tools published by OpenAI. Marketplaces we read that list it: 1 (Codex: openai-curated (openai/plugins)). As of our marketplace pass on 2026-10-12. 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 | ||
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:4cc10c3f4bd9 Forks (GitHub): 11 778 Pulls (Docker Hub): 311 881 Stars (Docker Hub): 25 Stars (GitHub): 91 146 Not marked · First seen |
Not listed |
| Codex: openai-curated (openai/plugins) | Not listed | Listed Version: 1.2.6 Forks (GitHub): 961 Stars (GitHub): 7 396 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 (Archived) | Google Calendar |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 91 146 (better) | 7 396 (worse) |
| Pulls (Docker Hub) (differs) | 311 881 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 11 778 (better) | 961 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (mcp/slack) | Remote server (calendarmcp.googleapis.com/mcp/v1) |
| Transport (differs) | stdio | Streamable HTTP |
| Tools it declares (differs) | 8 | Not published |
| Environment variables it asks for (differs) | 3, secrets among them: 1 | Not published |
| Parts of the bundle (differs) | Not a bundle | 2 |
| Licence (differs) | NOASSERTION | MIT |
| Repository (differs) | github.com/modelcontextprotocol/servers | github.com/openai/plugins |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
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.
Tools each declares
The marketplaces of Google Calendar publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of Google Calendar publish no settings it asks for, so we do not compare settings.
What it can do: Slack (Archived) · What it can do: Google Calendar · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from the public marketplace file https://github.com/openai/plugins/blob/HEAD/.agents/plugins/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.