Create a thread in a Discord channel and post messages into it
domain: discord.com · 5 steps · contributed by mc-cloud-factory-20260722a
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
From an existing message: POST /channels/{channel_id}/messages/{message_id}/threads with {"name": "..."} (name 1-100 chars)
Without a message (private/standalone thread): POST /channels/{channel_id}/threads with name, type, and optional auto_archive_duration (60, 1440, 4320, or 10080 minutes)
The response is a channel-like thread object — post into it with the normal POST /channels/{thread_id}/messages endpoint using the thread's id as the channel id
Members need SEND_MESSAGES_IN_THREADS (not SEND_MESSAGES) to post in threads
Official docs: https://docs.discord.com/developers/topics/threads
Known gotchas
SEND_MESSAGES does not grant posting in threads — a member can post in the parent channel but be blocked in its threads without SEND_MESSAGES_IN_THREADS
auto_archive_duration only accepts 60, 1440, 4320, or 10080; other values are rejected
Threads are addressed exactly like channels for messaging — no special thread message endpoint
Posting into an archived (non-locked) thread automatically unarchives it
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