Allows sending messages to a Discord channel via a webhook URL.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@discord-webhook-relay-mcp Send 'Hello from MCP' to the Discord webhook https://discord.com/api/webhooks/123456789/abcdef"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
An MCP server that does one thing: takes a Discord webhook URL and a message, and sends the message to Discord. Built with the MCP TypeScript SDK's Hono middleware, running on Cloudflare Workers.
Runtime: Cloudflare Workers
MCP: @modelcontextprotocol/server + @modelcontextprotocol/hono
Framework: Hono
Language: TypeScript
Test: Vitest + @cloudflare/vitest-pool-workers
Linter/Formatter: Biome
Related MCP server: notify_me_mcp
bun install
bun run devhttp://localhost:8787/ is the MCP endpoint (Streamable HTTP).
send_discord_messageParameter | Type | Description |
| string | The destination Discord webhook URL |
| string | The message to send (1–2000 characters) |
webhookUrl is validated to match the shape of a Discord webhook URL, then the server sends
POST { content: message } to it.
Command | Description |
| Start local dev server |
| Deploy to Cloudflare Workers |
| Run tests |
| Lint and format check |
| Auto-fix lint and format issues |
| Generate Cloudflare binding types |
src/
index.ts # MCP server and Hono app entry point
wrangler.jsonc # Wrangler configurationCloudflare Workers has no concept of a local bind, so createMcpHonoApp's default
localhost-only DNS-rebinding protection is disabled via host: "0.0.0.0" (see src/index.ts).
Restrict it further with allowedHosts if you need to lock it down to your deployed hostname.
The webhook URL is passed in as a tool argument on every call, so the server never stores or needs to hold a secret for it.
This server cannot be deployed
Control your Discord community: send/read messages, manage channels and forums, and handle webhook…
Let your AI agent notify you by email, Slack, Discord, or webhook. One tool: send_notification.
Connect a Discord bot (bot token from the developer portal) to read/send messages, list guilds and c
Receive, inspect, replay and deliver webhooks — with signature verification and agent triggers.
