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discord.com

Post a Discord message

Automatically post a Discord message on discord.com. Posts a text message, optionally with a file attached (the attachment file input, renamed with filename), in a Discord channel addressed by its URL. Requires being logged in to Discord. Returns `sent` plus the created message's messageId, channelId, timestamp and content as Discord stored it. The message is visible to everyone who can see the channel. Empty messages, messages over 2000 characters and forum channels are refused with a clear reason. Use dry_run to check a channel and message without posting.

Input

channelUrl required

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

dry_run optional

When true, the message and any attachment are prepared in the channel but not sent. Nothing is posted: sent comes back false, messageId is null and dry_run is true. Use it to check that a channel, message and attachment are accepted without posting a real, visible message.

message optional

Text of the message. Optional when a file is attached, in which case it becomes the message's caption. Up to 2000 characters.

filename optional

Name the attached file is posted under, e.g. report.csv. Omitted: the file keeps the name it arrives with.

attachment optional

A file to attach to the message.

Output

sent required

False on a dry run, where nothing was posted.

content optional

Content as stored by Discord. Null on a dry run.

dry_run optional

True when this run prepared the message without sending it.

channelId optional
messageId optional

ID of the created message. Null on a dry run.

timestamp optional
attachment optional

The file Discord stored — null when no file was sent, and null on a dry run.

FAQ

Posts a text message, optionally with a file attached (the attachment file input, renamed with filename), in a Discord channel addressed by its URL. Requires being logged in to Discord. Returns `sent` plus the created message's messageId, channelId, timestamp and content as Discord stored it. The message is visible to everyone who can see the channel. Empty messages, messages over 2000 characters and forum channels are refused with a clear reason. Use dry_run to check a channel and message without posting.
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
You do not need one. "Post a Discord message" drives the real discord.com pages in a browser, so it works whether or not discord.com offers an API for this.
Required: channelUrl. Optional: dry_run, message, filename, attachment.
It returns sent, content, dry_run, channelId, messageId, timestamp, attachment.
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, booking or buying 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.

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discord.com

Read Discord messages

Reads the most recent messages of one Discord channel or direct message (author, timestamp, text), newest first, loading older ones until the requested count; complete says whether the whole history came back. Requires being signed in. A DM or group DM is read the same way: pass its url from discord.com/list_dms. 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). To list the posts of a forum channel rather than its messages, use discord.com/list_forum_posts. To read several channels, run the script once per channel.

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Search Discord server messages

Search one Discord server's message history with Discord's own search, as the signed-in account, newest first. Search by words (content), and narrow by authors, channels, mentioned users and content type, each given as ids: get user ids from discord.com/get_member_list and channel ids from discord.com/list_channels. Returns one page of up to 25 matching messages with their author, text, time and link, Discord's total count of matches, and next_offset to read the next page (null on the last one). Fails with a clear error when the browser is not signed in to Discord, when the account is not a member of the server or can see no text channel in it, or when Discord is still indexing the server. Direct messages are not searched.

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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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