MCP server

Persuasion Taxonomy MCP

It hands your AI our catalog of persuasion techniques, all documented from real ads. When you ask for help with an ad, an email or a landing page, your AI can name the technique your copy is missing and plan the next test, so you get more than a fresh round of adjectives.

Free to use
No account
No API key
Runs inside the AI you already use

Who it's for

Marketers, founders and copywriters who already write with Claude, ChatGPT or Gemini, and want feedback they can act on.

Once it's added, ask your AI

Why isn’t this landing page converting?
Check these five headlines before I test them.
Plan the copy for this offer before I write a word.
Which claims in this ad will readers not believe?
What should I A/B test next on this ad?

How to add it

Server address

https://taxonomy.coppica.com/mcp

Claude

Claude on the web and desktop

Open Customize, then Connectors.
Choose Add, then Add custom connector.
Name it Persuasion Taxonomy and paste the server address.
Choose Continue, then Add.

In Claude Code, run this instead

claude mcp add --transport http persuasion-taxonomy https://taxonomy.coppica.com/mcp

Claude’s free plan allows one custom connector.

Claude’s connector guide

ChatGPT

ChatGPT on the web

Open Plugins at chatgpt.com/plugins.
Choose the plus button, then Add custom MCP server.
Name it Persuasion Taxonomy and paste the server address as the connection URL.
Leave authentication off, tick the acknowledgement and choose Create.

OpenAI offers custom MCP servers on its Business, Enterprise and Edu plans, and on Pro with read-only access.

OpenAI’s MCP guide

Gemini

Gemini CLI

Open a terminal with Gemini CLI installed.
Run the command below.
Start Gemini and ask it about your copy.

Run this in your terminal

gemini mcp add --transport http persuasion-taxonomy https://taxonomy.coppica.com/mcp

In the Gemini app, custom MCP servers are added by a Gemini Enterprise admin.

Gemini CLI’s MCP guide