Siren MCP · Claude Code
Post to X from Claude Code
You just shipped the feature in Claude Code. Stay there. Add Siren as an MCP server and the same session makes the launch video, writes the post and publishes it.
> make a launch video for today’s release ✓ render_asset launch video, 18s > post it to X and LinkedIn ✓ post_run posted
set up
One command
- 1
Run the command in your project.
- 2
Claude Code opens the browser once. Approve at app.mysiren.ai/connect.
- 3
Connect X (or LinkedIn, TikTok, YouTube) in the Siren dashboard and turn on Allow posting.
claude mcp add --transport http siren https://mcp.mysiren.ai/mcpWhat it looks like
You finish a feature and type: make a 20 second video about the new export button and post it to X tomorrow at 9am Lagos time. Claude Code calls create_campaign with the prompt, the time and the platform. Siren renders the video 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 prompt mostly writes itself.
Prompts to start with
- Make a video 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
Straight answers.
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?
Any plan, Spark included. Videos are the one thing that needs Pro or above.
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 video cost?
25 credits. Pro has 300 a month, which is 12 videos, or 30 stills at 10 credits each. A platinum video, the studio-grade kind for a big launch, is 50.
siren mcp
Pick your agent.
a thousand voices, one signature
Ship it, then say post this.
One command connects Claude Code to Siren.
