Support

Get help

Email support@coppica.com. Say which app you connected from (Claude, ChatGPT, Cursor or another), what you asked, and what came back.

You can also open an issue at github.com/Otha-Labs/persuasion-mcp/issues. Issues there are public, so leave out anything private, like copy you haven't published.

• To report a wrong definition, example or attribution in the catalog, see errata.
• For privacy questions or to have data removed, see the privacy policy.
• If you hold rights in a quoted example, see the use policy.

Connect the MCP server

The server lives at https://taxonomy.coppica.com/mcp. It speaks Streamable HTTP and needs no account, sign-in or key.

• Claude, ChatGPT and other apps with custom connectors: add a custom connector and paste in the URL above.
• Claude Code: run claude mcp add --transport http persuasion-taxonomy https://taxonomy.coppica.com/mcp.
• Cursor, VS Code, or running it on your own machine: the README has the settings for each.

What it does

Every tool is read-only. The tools read the catalog and do plain arithmetic. They never post, send, buy or change anything, and the server makes no AI calls of its own.

• Plan marketing copy: which of the nine reader questions a piece has to answer, and a few ways to answer each.
• Diagnose marketing copy: which questions a draft answers, which it skips, and its biggest gap.
• Explain why marketing is not converting: what to rule out first, then the questions most likely going unanswered.
• Find persuasion techniques and Get a persuasion technique: search the catalog and read a full entry.
• Check and compare headlines, hooks, and subject lines, and Check marketing claims and CTAs.
• Plan an A/B test and Read an A/B test result.

If something goes wrong

• "Too many requests." The server limits how many calls one person or one address can make in a minute. Wait a minute and try again.
• A tool says an argument isn't valid. The message names the field and the values it accepts. Your assistant can usually fix the call and try again on its own.
• Opening the URL in a browser shows a short note, not a page. That's expected. The server answers MCP clients, not browsers.
• The app can't connect. Check that the URL ends in /mcp and that the app supports remote MCP servers over Streamable HTTP. If it still fails, email us the app's error message.

What it keeps

Your copy, your brief and your test numbers are used to answer that one request and are never stored. The privacy policy says what the server and our host do log, and for how long.