MCP Channel Messaging - Claude Code
Receive push messages from MCP servers via channels.
MCP channels let a server push messages into the session - deploy finished, alert fired, task completed - instead of waiting for Claude to poll.
What it does
The server opens a channel with a name and topic. When events happen server-side, it sends messages into the Claude Code session. The model sees them as they arrive and can react in the current or next turn. This reverses the usual request-response flow and opens up real-time integrations.
When to use it
- Long-running jobs where "tell me when done" is more efficient than polling.
- Alert and observability integrations that should surface in-session.
- Chat or collaboration bridges where messages arrive without being asked.
- Build/deploy dashboards that push status rather than expose an endpoint.
Gotchas
- Channel messages interrupt the conversation flow. Noisy channels are distracting.
- Backpressure matters - a server that spams can wedge a session.
- Not every client supports channels yet. Check client compatibility when designing.
Official docs: https://code.claude.com/docs/en/mcp.md#push-messages-with-channels
Technical content at the intersection of AI and development. Building with AI agents, Claude Code, and modern dev tools - then showing you exactly how it works.
Was this helpful?
Related Guides
Related Tools
Claude Code
Anthropic's agentic coding CLI. Runs in your terminal, edits files autonomously, spawns sub-agents, and maintains memory...
View Tool
Claude Agent SDK
Anthropic's SDK for building agents on the same tools, agent loop, and context management that power Claude Code. Python...
View ToolCodeburn
Interactive TUI dashboard that shows exactly where your Claude Code and Cursor tokens are going, in real time.
View ToolConductor
Mac app for running parallel Claude Code, Codex, and Cursor agents in isolated workspaces. Watch every agent work at onc...
View ToolRelated Videos
Claude Code Channels in 8 Minutes
Anthropic has released Channels for Claude Code, enabling external events (CI alerts, production errors, PR comments, Discord/Telegram messages, webhooks, cron jobs, logs, and monitoring signals) to b
Claude Code Just Killed After Effects
Create motion graphics and launch videos using natural language — no traditional video editor required. 🔗 Try Higgsfield Katana in Claude:** https://higgsfield.ai/s/katana-inside-claude-yt-developer...
Generate Videos in Codex + Claude Code with This...
Check out HeyGen! https://heygen.1stcollab.com/developersdigest The video introduces HeyGen, an AI video generation platform with a rich API and a CLI that lets developers create, fetch, and manipula...
Related Posts
Claude Fable 5.1 in Claude Code: How to Switch, Pin, and Pay Less
Claude Code v2.1.257 points /model fable at Fable 5.1: 1M context, $10/$50 per MTok, $0.25 cache reads. Setup, gotchas,...
Claude Design, Slides and Docs in Any Chat: How to Use Them
Claude Design, Slides and Docs now open in any Claude chat, Claude Code session or the Artifacts tab, on every plan. Exa...
Claude for Startups Offer Paused: What Founders Do Now
Claude for Startups paused its free Claude Team year and $1,000 API credit offer at capacity. What the program page says...
Claude Advisor Tool vs a Bigger Model: When the Pairing Pays
Anthropic's own runs: a Fable 5.1 advisor added 1.7 points to Opus 5.5 for 2.1x the cost. When the Claude advisor tool p...
Claude Code Retry Watchdog: Keep Unattended Runs Alive
CLAUDE_CODE_RETRY_WATCHDOG=1 makes Claude Code wait out 429 and 529 errors instead of failing after 10 retries. When to...
Claude Max API Credits: $100 a Month, What They Cover
Claude Max and Team plans now include a monthly Claude API credit, starting at $100 on Max 5x. What it covers, what it d...
