Social media scheduling MCP server

It writes in the voice saved on that account and uses the AI provider key saved for that account. API and MCP access require the Professional plan. See the Professional plan.

Public tools

• Generate post (castwyn_generate_post). One platform-native post in the voice saved on the account. It uses that account's own AI key.
• Generate week (castwyn_generate_week). Up to 10 posts from one topic (7 by default). Each post takes a different angle, in the saved voice.
• List platforms (castwyn_list_platforms). The networks Castwyn writes for, whether this account can publish to each one directly, and character limits.
• List posts (castwyn_list_posts). Drafts, scheduled posts, published posts, and failed posts on the account.
• Queue post (castwyn_queue_post). Save a post as a draft, or set a time so a scheduled post publishes on its own.
• Schedule post (castwyn_schedule_post). Set or change the time on a post that is already in the queue.
• Publish post (castwyn_publish_post). Publish now to a network this account has connected.
• Recommend time (castwyn_recommend_time). A labeled general estimate for the next posting slot. It is not based on this account's analytics.