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discord.com

Post a Discord message

Posts a text message in a Discord channel, addressed by channel URL. Requires being logged in to Discord. Returns `sent` plus the created message's messageId, channelId, timestamp and content as Discord stored it. This is a write: the message appears in the channel and is visible to everyone who can see it. Discord's own message limits are checked before anything is sent, so a message that is empty or whitespace-only, or longer than 2000 characters, is refused straight away with a clear reason.

Input

message required

Text of the message to post. Discord refuses empty messages and anything over 2000 characters client-side, so both are rejected up front.

channelUrl required

Full channel URL, e.g. https://discord.com/channels/<guildId>/<channelId>

Output

sent required
content optional

Content as stored by Discord.

channelId optional
messageId optional

ID of the created message (from Discord's API response).

timestamp optional

FAQ

Posts a text message in a Discord channel, addressed by channel URL. Requires being logged in to Discord. Returns `sent` plus the created message's messageId, channelId, timestamp and content as Discord stored it. This is a write: the message appears in the channel and is visible to everyone who can see it. Discord's own message limits are checked before anything is sent, so a message that is empty or whitespace-only, or longer than 2000 characters, is refused straight away with a clear reason.
Required: channelUrl, message.
It returns sent, content, channelId, messageId, timestamp.
Yes. It acts as you on discord.com: on your own Chrome it reuses your session, and on a Reduck-hosted browser it loads the discord.com cookies saved by the Reduck extension.
It makes changes on discord.com, like sending, posting or booking something.
Ask an AI agent connected to Reduck to run reduck/discord.com/post_message, or run it from a terminal with the Reduck CLI: npx @reduck-ai/cli@latest run --script reduck/discord.com/post_message
It is part of Reduck's official curated catalogue.

Related scripts

discord.com

Read Discord messages

Reads the most recent messages of a Discord channel (author, timestamp, text), newest first, scrolling up to load more until the requested count. Requires being logged in. It also reads a thread or a forum post, since both are channels in their own right: pass the post's url (from discord.com/list_forum_posts) and you get its replies plus the opening post, newest first — there is no separate thread-reading script. To list the posts of a forum channel rather than its messages, use discord.com/list_forum_posts instead.

discord.com

Discord login

Opens the Discord web app in the browser and reports whether the account is signed in, together with the username and display name it is signed in as. Run this first: the other Discord scripts need the web app open on a signed-in session.

discord.com

List Discord channels

Lists a Discord server's channels and categories from its sidebar (name, channelId, category, channel URL). Takes a guildId. Requires being logged in.

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