What is Slackbot Mcp Host

slackbot-mcp-host is a Slack Bot that serves as an MCP Host, allowing integration of various MCP servers into Slack for enhanced communication and functionality.

Use cases

Use cases include automating restaurant orders, fetching data from servers, and integrating search functionalities directly into Slack channels, enhancing team productivity and responsiveness.

How to use

To use slackbot-mcp-host, create a Slack App, set up a GCP project, enable billing, and configure the necessary APIs. Follow the setup instructions provided in the README to bundle MCP servers and deploy them using Docker.

Key features

Key features include support for various MCP servers like stdio and the ability to bundle MCP servers with Docker images at compile time. It supports multiple programming environments such as Go, npm, uv, and bun.

Where to use

slackbot-mcp-host can be used in any environment where Slack is utilized for team communication, particularly in software development, project management, and customer service applications.

slackbot-mcp-host

MCP Host as a Slack Bot

Demo

Features

Supported MCP Servers

• [x] stdio
  • [x] executable file (Must be installed by bundle feature)
• [ ] sse

Bundle MCP Servers

‘slackbot-mcp-host’ able to bundle MCP server with Docker image at compile time.

• [x] go
• [ ] npm
• [x] uv
• [x] bun

Setup

Create a Slack App

See: https://api.slack.com/quickstart

GCP

Login to GCP

gcloud auth application-default login

Create a new project

gcloud projects create <PROJECT_ID>
gcloud config set project <PROJECT_ID>

Enable billing

See available billing account

gcloud billing accounts list
# output
ACCOUNT_ID: <BILLING_ACCOUNT_ID>
NAME: <BILLING_ACCOUNT_NAME>
OPEN: <TRUE|FALSE>
MASTER_ACCOUNT_ID: <MASTER_ACCOUNT_ID>

Link billing account to the project

gcloud alpha billing projects link <PROJECT_ID> --billing-account="<BILLING_ACCOUNT_ID>"

Enable api

gcloud services enable iam.googleapis.com run.googleapis.com artifactregistry.googleapis.com 

Terraform

Edit terraform variables

{
  "mcpServers": {
    "hotpepper-gourmet-mcp-server": {
      "command": "hotpepper-gourmet-mcp-server",
      "env": {
        "HOTPEPPER_GOURMET_API_KEY": "<HOTPEPPER Gourmet API Key>"
      }
    },
    "fetch": {
      "command": "mcp-server-fetch"
    },
    "server-brave-search": {
      "command": "mcp-server-brave-search",
      "env": {
        "BRAVE_API_KEY": "<BraveApiKey>",
      }
    }
  },                                           # (Required) MCP servers to connect to.,
  "bundle": {
    "go": {
      "packages": [
        "github.com/miyamo2/hotpepper-gourmet-mcp-server@latest"
      ]
    },
    "uv": {
      "packages": [
        "mcp-server-fetch"
      ]
    },
    "bun": {
      "packages": [
        "@modelcontextprotocol/server-brave-search@latest"
      ]
    }
  },                                           # (Optional) MCP servers to install at compile time. Supported: go, uv, bun
  "llmProviderName": "anthropic",              # (Required) anthropic | openai | google
  "llmApiKey": "<LLMApiKey>",                  # (Optional) Model to be used
  "llmModelName": "<LLMModelName>",            # (Optional) API Key for LLM Provider
  "slackBotToken": "<SlackBotToken>",          # (Required) Slack bot token. 'app_mentions:read', 'chat:write' and 'users:read' scopes are required.
  "slackSigninSecret": "<SlackSigninSecret>",  # (Required) Slack Signin Secret
  "allowedUsers": [
    "<UserID1>"
  ],                                           # (Optional) List of user IDs who can use the bot
  "gcpProjectId": "<GCPProjectId>",            # (Required) GCP project ID
  "gcpProjectNumber": "<GCPProjectNumber>",    # (Required) GCP project number
  "gcpRegion": "<GCPRegion>"                   # (Required) GCP region
}

terraform apply

cd .deploy
terraform init
terraform plan -var-file tfvars.json
terraform apply -var-file tfvars.json

Related Repositories

https://github.com/sooperset/mcp-client-slackbot

https://github.com/mark3labs/mcphost