Post to X from Claude Code
Add Siren to Claude Code with one command. Ship a feature, type post this, and Siren makes an on-brand film or image, writes the caption and posts it to X, LinkedIn or TikTok.
You just shipped the feature in Claude Code. Stay there. Add Siren as an MCP server and the same session makes the launch film, writes the post and publishes it.
One command
claude mcp add --transport http siren https://mcp.mysiren.ai/mcp- Run the command in your project.
- Claude Code opens the browser once. Approve at app.mysiren.ai/connect.
- Connect X (or LinkedIn, TikTok, YouTube) in the Siren dashboard and turn on Allow posting.
What it looks like
You finish a feature and type: make a 20 second film about the new export button and post it to X tomorrow at 9am Lagos time. Claude Code calls create_campaign with the brief, the time and the platform. Siren renders the film in your brand, writes the post and queues it. The run link comes back in the terminal.
Or keep it short: post this. Claude already has the diff and the commit message in context, so the brief mostly writes itself.
Prompts to start with
- Make a film announcing the feature I just merged. Post it to X.
- Turn this changelog entry into a still for LinkedIn and schedule it for Monday 10am.
- Update our Brand DNA tagline to the one in README.md.
- Upload the screenshots in ./screens as product screens.
Why this beats a scheduler tab
A scheduler waits for you to bring the asset. Claude Code already has the context and Siren already has the brand, so the gap between shipping and telling people is one message.
FAQ
Do I need a plugin?
No. Siren is a remote MCP server over HTTP. The claude mcp add command is the whole install.
Which plan do I need?
Pro or Scale. Spark cannot connect an agent.
Can Claude Code read my Brand Memory?
No. Agents can read and update Brand DNA and product screens. Brand Memory stays in the dashboard.
What does a film cost?
25 credits. Pro has 300 a month, which is 12 films, or 30 stills at 10 credits each.
Siren MCP for every agent
- Siren MCP: the marketing MCP server for Claude, Cursor and ChatGPT
- Make and post marketing videos from Cursor with the Siren MCP server
- Siren for ChatGPT: a connector that makes and posts your marketing
- Siren connector for Claude: make and post on-brand content from chat
- AI video generator with an MCP server for your agent
- Siren MCP docs
- Pricing
- Siren vs alternatives
Siren docs · Siren API · OpenAPI · Siren developers · llms.txt