Your marketing, one message away in Claude
Add Siren to Claude as a custom connector. Ask for a launch film or a post, and Siren renders it in your brand, writes the caption and publishes it to X, LinkedIn, TikTok or YouTube.
Add Siren as a custom connector in Claude and your chats can end in a finished, on-brand post instead of a to-do.
Add a custom connector
https://mcp.mysiren.ai/mcp- In Claude open Settings, then Connectors, then add a custom connector.
- Paste the URL and approve once at app.mysiren.ai/connect.
- Connect your channels in the Siren dashboard and turn on Allow posting.
What you can ask
- Make a film about our new onboarding flow and post it to X on Friday at noon.
- Turn this blog post into a LinkedIn still and a caption.
- Read our Brand DNA and tell me what is missing.
- Post the film from yesterday to TikTok too.
Same brand every time
Siren keeps your Brand DNA: colors, type, logo, voice and what you sell. Every film and still starts from it, so the tenth post looks like it came from the same company as the first.
FAQ
Claude or Claude Code?
Both work. Claude Code uses one terminal command. Claude uses a custom connector with the same URL.
Which plan do I need?
Pro or Scale. Spark cannot connect an agent.
Can Claude change my brand?
It can read and update Brand DNA fields through update_brand_dna. Brand Memory stays in the dashboard.
Siren MCP for every agent
- Siren MCP: the marketing MCP server for Claude, Cursor and ChatGPT
- Post to X from Claude Code with the Siren MCP server
- Make and post marketing videos from Cursor with the Siren MCP server
- Siren for ChatGPT: a connector that makes and posts your marketing
- 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