Post Rich Content to Bluesky

Creates and schedules Bluesky posts through the Publora MCP server: text posts with auto-detected hashtags and URLs made clickable, images with alt text, and video. Setup requires a free Publora account, a Bluesky app password (never the main account password) connected via the Publora dashboard, an API key, and an MCP server entry pointed at https://mcp.publora.com with a bearer-token header - falling back to the REST API (x-publora-key header, not Authorization: Bearer) if the MCP server is unavailable.

curl -X GET "https://api.publora.com/api/v1/platform-connections" \
  -H "x-publora-key: sk_your_api_key"

Bluesky's own platform limits shape everything: 300 characters per post, up to 4 images per post at roughly 1 MB each - all images are converted to JPEG regardless of source format, PNG/WebP/GIF included, and the AT Protocol's strict ~1 MB limit means compressing to 80-85% JPEG quality - videos up to 3 minutes (50 MB under 60 seconds, 100 MB from 60 seconds to 3 minutes) capped at 25 per day or 10 GB, and alt text up to 2,000 characters per image. Bluesky's platform ID is DID-based (bluesky-did:plc:xxx), unlike other platforms' numeric IDs, and video uploads require a verified email on the Bluesky account first.

Use it when posting or scheduling content to Bluesky specifically - simple text, hashtag-and-URL posts, image posts with alt text, or short video - through Publora's MCP or REST interface.

Input: post content (text, optional images or video, optional alt text), a Bluesky connection ID, and a required ISO 8601 scheduledTime (current time plus one minute for immediate posting). Output: a created or scheduled Bluesky post, or a management action via list_posts/update_post/delete_post; media uploads go through a presigned URL from get_upload_url.

Runs through the Publora MCP server (or its REST API fallback) against Bluesky's API, on Free Starter (15 posts/month), Pro ($2.99/account/month, 100/account), or Premium ($9.99/account/month, 500/account) plans.

Users scheduling or automating Bluesky posts - especially ones needing accessible image posts with alt text or short video - through an agent rather than Bluesky's native composer.

Its own best-practice guidance leans into the format: since 300 characters is shorter than Twitter, posts should be punchy with just one or two relevant hashtags; Bluesky is framed as a growing, less-crowded platform with a tech-savvy, developer-heavy audience, best posted to 1-3 times a day, with authentic replies favored for building community.