Schema | Slack Read-Only MCP

Slack Read-Only MCP

Describes the environment variables required to run the server.

Name	Required	Description
`SLACK_XOXC_TOKEN`	No	Manual alternative to the automatic browser login: your Slack web token (xoxc). If set (together with SLACK_XOXD_COOKIE), it overrides the credentials saved in ~/.local/state/slack-readonly-mcp/credentials.json. Normally not needed, since `slack-readonly-login` obtains and stores the token automatically.
`SLACK_XOXD_COOKIE`	No	Manual alternative to the automatic browser login: the value of the Slack `d` cookie. If set (together with SLACK_XOXC_TOKEN), it overrides the credentials saved in ~/.local/state/slack-readonly-mcp/credentials.json. Normally not needed, since `slack-readonly-login` obtains and stores the cookie automatically.
`SLACK_CHROMIUM_PATH`	No	Path to a custom Chromium/Chrome binary used by the browser-login flow. Defaults to Playwright's bundled Chromium (system Chromium from snap cannot write its profile to ~/.local).
`SLACK_ALLOWED_CHANNELS`	Yes	Required, fail-closed allowlist of channels the server may read, as a comma-separated list. Entries can be channel IDs (C01234567, also G.../D...), names (#general or general), or `*` to allow all readable channels and DMs. If empty, the server will not start.

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Server capabilities have not been inspected yet.

Functions exposed to the LLM to take actions

Name	Description
No tools

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

This server cannot be deployed

ActivityMaintained

ResponsivenessNo issues