# Post to Bluesky with Claude or ChatGPT (2026 Setup)

> To post to Bluesky with Claude, connect your Bluesky account to RobinReach, then add RobinReach to Claude as a connector at https://robinreach.com/mcp/v1/messages. Claude can then write posts that fit Bluesky's short limit, add replies to make a thread, attach photos or a video and schedule everything from the chat. It can also read how your posts perform. The same works in ChatGPT and other AI apps, on the Bloom, Thrive and Scale plans.

Canonical: https://robinreach.com/post-to-bluesky-with-claude
MCP server URL: https://robinreach.com/mcp/v1/messages

## Example

User: Share today's changelog on Bluesky at 3pm. Keep it short and put the details in two replies.

What Claude did in RobinReach:
- `style_learn`: Read how you usually write on Bluesky
- `posts_validate`: Checked the post and both replies against Bluesky's limit
- `posts_create`: Scheduled for 15:00 with two replies

Claude: It goes out at 3pm with the headline in the first post and the details in two replies. Want the same update on Mastodon and Threads?

## What Claude can do on Bluesky

- **Posts.** Short posts that fit Bluesky's limit on the first try.
- **Threads.** Replies that go up right after your post.
- **Photos and video.** Several photos or one video per post.
- **Link cards.** A link with a preview card, so the text stays short.

## Bluesky rules RobinReach checks before saving

| Rule | Value |
| --- | --- |
| Characters | 300 |
| Photos | Up to 4 per post, 2 MB each |
| Video | MP4, 1 second to 4 minutes, up to 95 MB |
| Comments under the post | Up to 5, written with the post and published after it |
| Posts a day | Up to 30 per account |
| Delete after publishing | Yes, from the chat |
| Analytics in the chat | Reach and engagement per post, top posts and weekly comparisons |
| Comments inbox | Not available |

## Things to ask

- Post the same announcement to Bluesky, Mastodon and Threads at noon, each in its own words.
- Write a three post thread about our open roadmap for Thursday.
- Which Bluesky posts got the most engagement this month?
- Schedule a weekly Friday post that links to our newsletter.

## Setup

1. **Connect Bluesky to RobinReach.** Create a free RobinReach account and connect Bluesky from the dashboard.
2. **Add RobinReach to your AI app.** In Claude or ChatGPT, add a connector with the URL https://robinreach.com/mcp/v1/messages and sign in to RobinReach. Coding tools and agents use the same URL with an API key.
3. **Ask in plain words.** Post the same announcement to Bluesky, Mastodon and Threads at noon, each in its own words.

Step by step guides: [Claude](https://robinreach.com/ai/integrations/claude.md), [ChatGPT](https://robinreach.com/ai/integrations/chatgpt.md), [Claude Code](https://robinreach.com/ai/integrations/claude-code.md), [Codex](https://robinreach.com/ai/integrations/codex.md), [Gemini CLI](https://robinreach.com/ai/integrations/gemini-cli.md), [Cursor](https://robinreach.com/ai/integrations/cursor.md), [VS Code](https://robinreach.com/ai/integrations/vs-code.md), [Devin Desktop](https://robinreach.com/ai/integrations/devin-desktop.md), [OpenClaw](https://robinreach.com/ai/integrations/openclaw.md), [Hermes](https://robinreach.com/ai/integrations/hermes.md), [n8n](https://robinreach.com/ai/integrations/n8n.md), [Zapier](https://robinreach.com/ai/integrations/zapier.md), [Make](https://robinreach.com/ai/integrations/make.md)

## Other networks

[Instagram](https://robinreach.com/post-to-instagram-with-claude.md), [Facebook](https://robinreach.com/post-to-facebook-with-claude.md), [LinkedIn](https://robinreach.com/post-to-linkedin-with-claude.md), [TikTok](https://robinreach.com/post-to-tiktok-with-claude.md), [YouTube](https://robinreach.com/post-to-youtube-with-claude.md), [X (Twitter)](https://robinreach.com/post-to-twitter-with-claude.md), [Threads](https://robinreach.com/post-to-threads-with-claude.md), [Pinterest](https://robinreach.com/post-to-pinterest-with-claude.md), [Google Business Profile](https://robinreach.com/post-to-google-business-with-claude.md), [Mastodon](https://robinreach.com/post-to-mastodon-with-claude.md), [Telegram](https://robinreach.com/post-to-telegram-with-claude.md), [WordPress](https://robinreach.com/post-to-wordpress-with-claude.md)

## Questions

### How do I post to Bluesky with Claude?

Connect Bluesky to RobinReach, add RobinReach to Claude as a custom connector with the URL https://robinreach.com/mcp/v1/messages and sign in. Then ask Claude to post or schedule in plain words.

### Can Claude post threads on Bluesky?

Yes. Claude writes the post and the replies, checks each against Bluesky's limit and schedules them together.

### Can Claude post the same thing to X, Threads and Mastodon?

Yes. Ask once and Claude writes a version for each network that fits its own limit.

### Can ChatGPT post to Bluesky too?

Yes. Add RobinReach to ChatGPT as a custom MCP server and it gets the same tools.

### Can Claude repeat a post every week?

Yes. RobinReach posts can repeat every day, at weekends, weekly or monthly until an end date, and Claude can set that up when it schedules.

## Sources

Last checked on 24 October 2026. RobinReach's numbers (tools, networks, limits, plans) are read from the product when the page is generated.

- [Bluesky docs, creating a post](https://docs.bsky.app/docs/advanced-guides/posts)
- [RobinReach MCP server reference](https://robinreach.com/mcp)

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Start free: https://robinreach.com/users/sign_up. AI integrations from Bloom, $24 a month. All AI integrations: https://robinreach.com/ai/integrations.md