slack-stdio-mcp
by epdlr
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| SLACK_MCP_URL | No | MCP endpoint. Set via --mcp-url. | https://mcp.slack.com/mcp |
| SLACK_CLIENT_ID | No | OAuth app id (default: Claude partner). Set via --client-id. | 1601185624273.8899143856786 |
| SLACK_MCP_TOKEN | No | Inject Bearer token (tests/CI). Set via --token or --mcp-token. | |
| SLACK_OAUTH_HOST | No | Redirect host. Set via --oauth-host. | localhost |
| SLACK_OAUTH_PATH | No | Redirect path. Set via --oauth-path. | /callback |
| SLACK_OAUTH_PORT | No | Loopback port. Set via --oauth-port. | 3118 |
| SLACK_SKIP_OAUTH | No | Never open browser. Set via --skip-oauth. Use '1' to enable. | |
| SLACK_CLIENT_SECRET | No | Client secret for confidential apps only. Set via --client-secret. | |
| SLACK_STDIO_PROFILE | No | Named store: ~/.slack-stdio-mcp/profiles/<name> (share across repos). Set via --profile. | |
| SLACK_STDIO_CREDS_DIR | No | Absolute credentials root (wins over --profile). Set via --creds-dir. | |
| SLACK_OAUTH_TIMEOUT_MS | No | Startup OAuth timeout in milliseconds. Environment only. | 180000 |
| SLACK_ALLOW_LEGACY_TOKEN | No | Allow flat legacy JSON without client_id. Use '1' to enable. Environment only. |
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
No tools | |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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