slack-mcp-server

# Slack MCP Server ## Project Overview **Spring AI** is utilized to support tools such as sending Slack messages and retrieving channel history. --- ## Main Tools ### Implemented Tools #### 1. Send Message (postMessage) * Sends messages to a Slack channel. Some Markdown formatting is supported. #### 2. Fetch Channel History (fetchChannelHistory) * Retrieves the message history of a Slack channel. You can specify a cursor for pagination and the number of messages to retrieve. ### Tools to be Implemented #### 1. Upload File (uploadFile) * A feature to upload files to a Slack channel. #### 2. Add/Remove Reaction (addReaction/removeReaction) * A feature to add or remove emoji reactions to messages. #### 3. Schedule Message (scheduleMessage) * A feature to schedule messages to be sent at a specific time. --- ## Setup Instructions ### Build and Run 1. Build the Project ```bash # Build the project ./gradlew build ``` 2. Run with **Claude Desktop** Create the `claude_desktop_config.json` file as follows: ```json { "mcpServers": { "slack-mcp": { "command": "java", "args": [ "-Dfile.encoding\u003dUTF-8", "-jar", "JAR_PATH" ], "env": { "SLACK_BOT_TOKEN": "xoxb-your-bot-token", "SLACK_CHANNEL_ID": "your-channel-id" } } } } ``` - `JAR_PATH`: Path to the built jar file - `SLACK_BOT_TOKEN`: Slack Bot token - `SLACK_CHANNEL_ID`: Slack channel ID to send messages to --- ## Project Structure ``` src/main/java/dev/luigi/slack/mcp/server/ ├── SlackMcpServerApplication.java # Main application class ├── dto/ # Data Transfer Objects │ ├── common/ # Common DTOs │ ├── request/ # Request DTOs │ └── response/ # Response DTOs └── service/ # Service classes ├── SlackService.java # Slack service interface ├── SlackServiceImpl.java # Slack service implementation ├── file/ # File-related services ├── history/ # Channel history-related services ├── message/ # Message-related services ├── reaction/ # Reaction-related services └── schedule/ # Scheduled message-related services ```