audience-sync-agent

[](https://modelcontextprotocol.io) [](LICENSE) [](https://syntermedia.ai)

Upload your email list to every ad platform in one command. Open this repo in Amp, Cursor, or VS Code and sync Customer Match, Custom Audiences, and Matched Audiences across Google, Meta, LinkedIn, TikTok, X, Reddit, and Amazon — all at once.

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First-party data is the most valuable targeting signal in digital advertising. Your customer email list, when uploaded as a Custom Audience, lets ad platforms find your exact customers and build Lookalike audiences to find more people like them.

The problem? Every platform has a different audience upload format, different hashing requirements, different API endpoints, and different field mappings. Uploading a 10,000-email list to 5 platforms manually takes 2+ hours of tedious work. And audiences go stale — you need to refresh monthly.

An AI agent turns a 2-hour task into a single command. "Upload my customer list to all platforms" handles formatting, SHA-256 hashing, API uploads, and Lookalike creation across every connected platform.

Best for: Remarketing, first-party data activation, suppression lists, lookalike audience building, anyone who advertises on multiple platforms.

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1. Get a free API key at syntermedia.ai/developer
2. Set the key:

   export SYNTER_API_KEY=syn_your_key_here

1. Open this repo in your editor
2. Start chatting — MCP tools are pre-configured in .mcp.json

Copy claude_desktop_config.json to your Claude config directory and replace the AP