Best Communication Tools for Claude Code in 2026
These tools let Claude Code read and send messages across Slack, email, and other communication platforms. Pull context from team discussions, send notifications when tasks complete, or draft emails without leaving your coding flow.
SMS, voice calls, WhatsApp, video, and phone number management.
npm install twilioMessages, channels, users, files, and app interactions.
npm install @slack/web-apiGmail, Calendar, Drive, Sheets, YouTube, Maps, and 200+ Google services.
npm install googleapisRead and send Slack messages, search channels, and manage conversations.
claude mcp add slack -- npx -y @modelcontextprotocol/server-slackDeveloper-first email API with React Email support.
npm install resendEmail delivery - transactional, marketing, and template management.
npm install @sendgrid/mailTransactional email with industry-leading deliverability.
npm install postmarkEmail delivery, validation, and routing for developers.
npm install mailgun.jsSend Slack or desktop notifications when long-running tasks complete.
Add to .claude/hooks/post-task.shManage Upstash Redis, Kafka, and QStash from Claude Code.
claude mcp add upstash -- npx -y @upstash/mcp-serverFrequently asked questions
Can Claude Code send Slack messages?
Yes. Install the Slack MCP server and Claude can read channels, search messages, and send messages directly from your terminal.
Can Claude Code read my emails?
With the Gmail MCP server installed, Claude can search and read your emails. It requires OAuth authentication with your Google account.
Which is better for Slack - the MCP server or the API?
The MCP server is easier to set up and covers common use cases. Use the Slack Web API when you need rich message formatting, interactive components, or event handling.