Synter

What is Synter?

Synter is an MCP server that gives AI agents direct access to real advertising budgets—allowing them to create campaigns, adjust bids, pause underperformers, generate creatives, and pull performance data through natural conversation across Google, Meta, LinkedIn, Microsoft, Reddit, TikTok, and more. It is built for advertisers who want to manage paid media using natural language.

How to use Synter?

Sign up at syntermedia.ai and create an API key in Developer Settings. Add the server to your AI client’s MCP configuration (e.g., Claude Desktop, Cursor, or Amp) using the command npx @syntermedia/mcp-server and the environment variable SYNTER_API_KEY set to your key. Restart the client and start chatting with commands like “Show me all my Google Ads campaigns” or “Create a search campaign for 'project management software' with a $50/day budget.”

Key features of Synter

• Create and manage campaigns across Google, Meta, LinkedIn, Reddit, and more
• Pull performance metrics (impressions, clicks, spend, conversions, ROAS)
• Add keywords and negative keywords to campaigns or ad groups
• Set up and diagnose conversion tracking
• AI‑generate ad images (Imagen 4, Flux, SDXL) and videos (Veo, Runway, Luma)
• List connected ad accounts and run 140+ direct Synter tools

Use cases of Synter

• Launch a Google Search campaign with specific keywords and a daily budget
• Check weekly campaign performance and receive optimisation suggestions
• Add negative keywords to block unwanted search terms
• Generate a display ad image for a marketing automation product
• Create a LinkedIn B2B campaign targeting professional audiences

FAQ from Synter

How do I fix “SYNTER_API_KEY not set”?

Ensure your API key is placed in the env section of your MCP config file and that the key string starts with syn_.

My API key shows as invalid or expired – what should I do?

Verify you copied the full key (they are long), check its status at syntermedia.ai/developer, and confirm it has the tools:write scope.

Why do I see “No ad accounts connected”?

You need to connect at least one ad platform. Go to syntermedia.ai/credentials, click “Connect” next to the platform (e.g., Google Ads), and complete the OAuth flow.

Tools aren’t appearing in Claude/Cursor – what’s wrong?

Restart your AI client entirely (not just refresh), check the MCP server logs for errors, and verify the config file path and JSON syntax.

What’s the minimum budget for each platform?

Google Ads: $10/day, Meta: $5/day, LinkedIn: $25/day, Reddit: $5/day, Microsoft (Bing): $10/day, TikTok: $20/day.