Comparison

Gmail vs io.github.chrischall/office-outlook-mcp

Gmail is an MCP server published by Sallytion. Marketplaces we read that list it: 1 (Docker MCP Catalog). io.github.chrischall/office-outlook-mcp is an MCP server published by chrischall. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). As of our marketplace pass on 2026-10-28. 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

Where each is published
Marketplace	Gmail	io.github.chrischall/office-outlook-mcp
Docker MCP Catalog	Listed Version: sha256:9d806c6ba375 Forks (GitHub): 9 Stars (GitHub): 13 Not marked · First seen 2026-10-11	Not listed
Official MCP Registry	Not listed	Listed Version: 0.7.1 Downloads/month (npm): 3 378 Downloads/week (npm): 515 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen 2026-10-11
npm registry (MCP servers)	Not listed	Listed Version: 0.7.1 Downloads/month (npm): 3 378 Downloads/week (npm): 515 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen 2026-10-12

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

Gmail vs io.github.chrischall/office-outlook-mcp
Fact	Gmail	io.github.chrischall/office-outlook-mcp
Marketplaces that list it (differs)	1 (worse)	2 (better)
Stars (GitHub) (differs)	13 (better)	0 (worse)
Forks (GitHub) (differs)	9 (better)	0 (worse)
Last release (differs)	Not published	2026-10-21
Where it runs (differs)	On your machine (yashtekwani/gmail-mcp)	On your machine (@chrischall/office-outlook-mcp)
Transport	stdio	stdio
Tools it declares (differs)	3	Not published
Environment variables it asks for (differs)	6, secrets among them: 1	14, secrets among them: 2
Licence (differs)	Not stated	MIT
Repository (differs)	github.com/sallytion/gmail-mcp	github.com/chrischall/office-outlook-mcp
Changes in the last 7 days (differs)	0	2
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.

What each says it does

Gmail

In its own words, on Docker MCP Catalog:

A Model Context Protocol server for Gmail operations using IMAP/SMTP with app password authentication. Supports listing messages, searching emails, and sending messages. To create your app password, visit your Google Account settings under Security > App Passwords. Or visit the link https://myaccount.google.com/apppasswords.

io.github.chrischall/office-outlook-mcp

In its own words, on Official MCP Registry:

Outlook / Microsoft 365 for Claude — triage mail, reply, answer invites and book meetings, confirmed

How to run each

Gmail As a local MCP server: Docker image

Claude Code

claude mcp add --env "EMAIL_PASSWORD=<YOUR_EMAIL_PASSWORD>" --transport stdio gmail-mcp -- docker run -i --rm -e EMAIL_PASSWORD yashtekwani/gmail-mcp

Requires: EMAIL_PASSWORD (secret)

io.github.chrischall/office-outlook-mcp As a local MCP server: npm package

Claude Code

claude mcp add --env "MCP_CONFIRM_SECRET=<YOUR_MCP_CONFIRM_SECRET>" --env "OUTLOOK_ACCESS_TOKEN=<YOUR_OUTLOOK_ACCESS_TOKEN>" --transport stdio office-outlook-mcp -- npx -y @chrischall/office-outlook-mcp

Requires: MCP_CONFIRM_SECRET (secret), OUTLOOK_ACCESS_TOKEN (secret)

Commands built only from what the marketplaces declare; the full set for every client is on each card.

Tools each declares

The marketplaces of io.github.chrischall/office-outlook-mcp publish no list of tools, so we do not compare tools.

Settings each asks for

Only Gmail asks for

EMAIL_ADDRESS
EMAIL_PASSWORD (secret)
IMAP_HOST
IMAP_PORT
SMTP_HOST
SMTP_PORT

Only io.github.chrischall/office-outlook-mcp asks for

FETCHPROXY_IDENTITY_DIR
FETCHPROXY_WS_HOST
MCP_CONFIRM_ELICITATION
MCP_CONFIRM_MODE
MCP_CONFIRM_SECRET (secret)
MCP_CONFIRM_TTL_SECONDS
OUTLOOK_ACCESS_TOKEN (secret)
OUTLOOK_API_BASE
OUTLOOK_CAPTURE_TIMEOUT
OUTLOOK_DISABLE_FETCHPROXY
OUTLOOK_OUTPUT_DIR
OUTLOOK_TOKEN_CACHE

Show the remaining 2

OUTLOOK_TOKEN_FILE
OUTLOOK_WS_PORT

Settings as each marketplace publishes them. Asking for fewer is not better in itself.

What it can do: Gmail · What it can do: io.github.chrischall/office-outlook-mcp · Compare two other plugins

Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on 2026-10-28. We publish no contact details for plugin publishers.