MCP server · Copywriting · official

Persuasion MCP server

by Otha-Labs · official

Your AI can check and improve marketing copy using 766 persuasion techniques from real ads.

Copywriting For marketing For creatives For writers Marketing

This is a helper for your AI that focuses on marketing copy. It looks at your headlines, claims and wording, and suggests fixes based on a big library of persuasion techniques taken from real advertising. It is handy if you write ads, emails, landing pages or social posts and want a second pair of eyes.

What is an MCP server? The 30-second version

On its own, your AI can only chat with you using what it already knows. An MCP server is a small helper program that gives your AI a new skill or a connection to a service. This one connects your AI to a persuasion and copywriting library, so it can look up techniques and check your writing for you. You just ask in normal words, and the AI uses this helper behind the scenes.

What this MCP server does

You paste your marketing copy into the chat and ask your AI to review it. The AI sends it to this helper, which compares it against the nine questions every reader asks and a library of 766 persuasion techniques from real ads. The helper also runs diagnostics on your headlines and claims, and can do A/B test math. Then your AI comes back with notes, suggested fixes and numbers, all in the chat.

What you can do with it

Check a headline against common reader questions
Find weak or unclear claims in your copy
Suggest persuasion techniques that fit your message
Diagnose why a piece of copy may not be landing
Compare two versions of a headline or subject line
Run simple A/B test math on your results
Plan the structure of a marketing message

Try asking your AI

“Review this landing page headline and tell me what a reader might question”
“Which persuasion techniques fit this email about a new coffee subscription”
“Check these three ad claims for anything that sounds vague or unsupported”
“I got 120 clicks on version A and 150 on version B out of 2000 sends each. What does that tell me”

What it gives back to you

You get back written feedback in the chat: notes on your headline, claims and wording, plus suggested techniques and rewrites. For A/B tests, you get the numbers explained in plain words. Everything stays in the conversation, so you can ask follow-up questions right away.

Before you start

Good to know

It gives suggestions, not guarantees, so always read the feedback and use your own judgement before publishing.

Install it with your AI

Add Persuasion MCP server to your AI, no technical skills needed

You don't install anything by hand. You copy one prompt, paste it into an AI that can work on your computer, and it checks, installs and connects the server for you, asking you when it needs something.

Sign in to get the install prompt

Members get a ready-made prompt that lets the Claude desktop app check Persuasion MCP server, install it and connect it for them, step by step. You don't need any technical skills: you copy, paste and answer a few questions. Your connected AI can also find and install any of the 4,210 MCP servers here for you.