LangBot Docs
Dify

Connect Dify to Discord

Step-by-step guide to running your Dify app as a Discord bot with LangBot: Dify setup, bot credentials, networking, testing and troubleshooting.

This recipe puts your Dify app behind a Discord bot. LangBot receives messages from Discord, runs them through a pipeline, and sends the answer back, so you do not write any platform code.

Dify builds chat assistants, Chatflows, Agents and Workflows. LangBot calls the published app through its Service API, so prompts, tools and knowledge stay in Dify.

What you need

  • A running LangBot instance: LangBot Cloud (no server needed) or a self-hosted deployment with Docker or uvx langbot.
  • A Dify account or instance that LangBot can reach over the network.
  • A Discord application with a bot: its Client ID and bot token from the Developer Portal, with Server Members Intent and Message Content Intent enabled.

Networking

Discord bots connect out to the Discord gateway, so no public webhook URL is required.

1. Prepare Dify

  1. Build and publish a Chat Assistant (including Chatflow), Agent or Workflow app in Dify.
  2. Open the app's Access API page and create an API key.
  3. For a Workflow app, output the answer under the key summary.

2. Create a pipeline

Open Pipelines in the LangBot WebUI, create a pipeline (or edit the default one) and set AI as follows. If the runner is not listed, install the official runner plugin from Plugins or the LangBot Space marketplace.

FieldValue
RunnerDify (official Dify Agent runner plugin)
Base URLhttps://api.dify.ai/v1 for Dify Cloud, or your own Dify address with /v1 appended
API KeyThe key from the app's Access API page

3. Create the Discord bot

  1. Create a bot with the Discord adapter and enter the Client ID and token.
  2. Invite the bot from OAuth2 → URL Generator with the bot scope and Guild Install, granting permission to view channels and send messages.

4. Bind and test

Open the bot, select the pipeline you created, save and make sure the bot is enabled.

Send a message that matches the trigger rules in a server channel, then try a DM from the bot's profile.

Troubleshooting

  • Self-hosted Dify in Docker on the same host: put both stacks on a shared Docker network and use the container address (for example http://dify-nginx/v1), not localhost.
  • Chatflow apps only return what the Answer node outputs.
  • Gateway login fails: check the current token and that both privileged intents are enabled and saved.
  • Discord limits message length, so long streaming replies arrive as several messages.
  • Check Monitoring in the WebUI: every message, pipeline run and error is recorded there.

FAQ

Do I need a server with a public IP for Discord?

No. Discord bots connect out to the Discord gateway, so no public webhook URL is required.

Does the Discord bot support streaming replies?

Yes. Enable streaming on the bot; the AI back end must also stream. See the platform feature matrix for details.

Can the same Dify setup serve other platforms too?

Yes. A pipeline can be bound to many bots, so one configuration can answer on several platforms at once.

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