Persuasion Taxonomy

com.coppica/persuasion-taxonomyVersion 1.0.7

Plan and check marketing copy against the nine questions every reader asks. Free, no API key.

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Responds213 msNov 14, 2026, 13:52 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 13:52 UTC
Latency: 213 ms
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Registry data as of: Nov 14, 2026, 22:14 UTC

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Connect

Streamable HTTP

https://taxonomy.coppica.com/mcpResponds213 msNov 14, 2026, 13:52 UTC

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Claude Code

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

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: persuasion-taxonomy
Remote MCP server URL: https://taxonomy.coppica.com/mcp

Cursor

{
  "mcpServers": {
    "persuasion-taxonomy": {
      "url": "https://taxonomy.coppica.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"persuasion-taxonomy","type":"http","url":"https://taxonomy.coppica.com/mcp"}'

Streamable HTTP

npm: @coppica/persuasion-mcp 1.0.7

Package only

npm (npx)

claude mcp add persuasion-taxonomy -- npx -y @coppica/persuasion-mcp@1.0.7

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Tools

9 tools

Tools of Persuasion Taxonomy
	Description		Read-only	Idempotent	Open world
`check_headlines`Check headlines, email subject lines, ad openings, video hooks, social post openings and first lines, and compare options against each other. For each line it tells you whether the line does its job in that spot, meaning which of the nine reader questions it answers, and whether a competitor could send it unchanged. It also shows exactly what a reader sees before the cutoff, flags anything that fails outright, and brings in evidence from thousands of real headline tests. Then it says what each option is betting on and which two to test. It answers requests to check or choose between headlines, hooks or subject lines, including "which one is best?" You won't get a score out of ten. Nobody can predict a winner from the words alone, and that includes this tool.	Check headlines, email subject lines, ad openings, video hooks, social post openings and first lines, and compare options against each other. For each line it tells you whether the line does its job in that spot, meaning which of the nine reader questions it answers, and whether a competitor could send it unchanged. It also shows exactly what a reader sees before the cutoff, flags anything that fails outright, and brings in evidence from thousands of real headline tests. Then it says what each option is betting on and which two to test. It answers requests to check or choose between headlines, hooks or subject lines, including "which one is best?" You won't get a score out of ten. Nobody can predict a winner from the words alone, and that includes this tool.	No	Yes	Yes	No
`check_marketing_claims`Check whether marketing claims and calls to action are specific enough to believe. It catches the vague superlative, like "the best" or "#1", that readers discount on sight. It catches promises with no proof behind them and results with no mechanism, and it flags the generic buttons everyone uses, like "Learn more" and "Get started". Then it says how to fix each one. It covers claims like "results in days", "trusted by thousands" or "the #1 tool", and any button text. For a headline, it checks the claim only, not whether the headline does its job in its spot.	Check whether marketing claims and calls to action are specific enough to believe. It catches the vague superlative, like "the best" or "#1", that readers discount on sight. It catches promises with no proof behind them and results with no mechanism, and it flags the generic buttons everyone uses, like "Learn more" and "Get started". Then it says how to fix each one. It covers claims like "results in days", "trusted by thousands" or "the #1 tool", and any button text. For a headline, it checks the claim only, not whether the headline does its job in its spot.	No	Yes	Yes	No
`diagnose_marketing_copy`Review, critique or roast any piece of marketing copy, whether it's an ad, a landing page, an email, a sales page, a social post or a script, and find out why it might not persuade. It takes the copy and line-by-line labels naming the reader question each persuasive line answers. It returns which of the nine questions the copy answers for its goal, which it answers weakly and which it skips, along with the biggest gap and what readers do when it is missing. It also checks the order, whether the answers agree with each other, and the craft, pointing to the exact words that read as machine-written, like em dashes, "it's not X, it's Y" lines and sentences that all run the same length. Then it checks the opening line and suggests techniques from the catalog to fill the gap. It answers requests like "is this good?", "roast this", "what's wrong with this copy?" and "how do I make it better?"	Review, critique or roast any piece of marketing copy, whether it's an ad, a landing page, an email, a sales page, a social post or a script, and find out why it might not persuade. It takes the copy and line-by-line labels naming the reader question each persuasive line answers. It returns which of the nine questions the copy answers for its goal, which it answers weakly and which it skips, along with the biggest gap and what readers do when it is missing. It also checks the order, whether the answers agree with each other, and the craft, pointing to the exact words that read as machine-written, like em dashes, "it's not X, it's Y" lines and sentences that all run the same length. Then it checks the opening line and suggests techniques from the catalog to fill the gap. It answers requests like "is this good?", "roast this", "what's wrong with this copy?" and "how do I make it better?"	No	Yes	Yes	No
`explain_why_not_converting`Work out why an ad, a landing page, an email or a whole funnel isn't converting, starting from what you can see. Maybe people don't click (a low CTR), or they click and bounce, or they read and don't buy. Maybe they abandon the checkout or the form, the leads never buy, customers buy once and leave, or emails don't get opened or get opened and nobody clicks. Whatever the symptom, you get back the reader questions most likely going unanswered, what to check in the copy first, and the problems copy can't fix, which are worth ruling out, along with techniques to try and the test that would confirm the diagnosis. It answers questions like why marketing "isn't working", "isn't converting" or "isn't selling", or why results dropped.	Work out why an ad, a landing page, an email or a whole funnel isn't converting, starting from what you can see. Maybe people don't click (a low CTR), or they click and bounce, or they read and don't buy. Maybe they abandon the checkout or the form, the leads never buy, customers buy once and leave, or emails don't get opened or get opened and nobody clicks. Whatever the symptom, you get back the reader questions most likely going unanswered, what to check in the copy first, and the problems copy can't fix, which are worth ruling out, along with techniques to try and the test that would confirm the diagnosis. It answers questions like why marketing "isn't working", "isn't converting" or "isn't selling", or why results dropped.	No	Yes	Yes	No
`find_persuasion_techniques`Search the Persuasion Taxonomy, 767 named persuasion techniques documented from real advertising and organized by the nine reader questions they answer. It takes a plain description of what the copy should do, like handle a price objection, make an opening less generic, prove a claim or reframe a problem, and finds the techniques that do it. Each one comes with its name and ID, a one-line definition, a real example, how common it is in a category if you name one, and a link. It answers requests for tactics, angles or a less expected way to make a point.	Search the Persuasion Taxonomy, 767 named persuasion techniques documented from real advertising and organized by the nine reader questions they answer. It takes a plain description of what the copy should do, like handle a price objection, make an opening less generic, prove a claim or reframe a problem, and finds the techniques that do it. Each one comes with its name and ID, a one-line definition, a real example, how common it is in a category if you name one, and a link. It answers requests for tactics, angles or a less expected way to make a point.	No	Yes	Yes	No
`get_persuasion_technique`Look up one persuasion technique by its ID (like PT-PRV-10000), its slug or its name. You get the full definition, why it works, when it lands and when it backfires, real examples from advertising, related and opposite techniques, and a link you can cite. It answers questions like what a tactic is called or how it works.	Look up one persuasion technique by its ID (like PT-PRV-10000), its slug or its name. You get the full definition, why it works, when it lands and when it backfires, real examples from advertising, related and opposite techniques, and a link you can cite. It answers questions like what a tactic is called or how it works.	No	Yes	Yes	No
`plan_ab_test`Plan an A/B test for marketing copy. It takes the current conversion rate, the smallest lift worth detecting and the daily traffic, and returns how many visitors each version needs and how many days to run. It also frames the test as two different answers to the same reader question, so the result teaches you something you can reuse, and not just that "B won". It answers questions like how long to run a test, how much traffic it needs, whether a test is worth running, or what to test next.	Plan an A/B test for marketing copy. It takes the current conversion rate, the smallest lift worth detecting and the daily traffic, and returns how many visitors each version needs and how many days to run. It also frames the test as two different answers to the same reader question, so the result teaches you something you can reuse, and not just that "B won". It answers questions like how long to run a test, how much traffic it needs, whether a test is worth running, or what to test next.	No	Yes	Yes	No
`plan_marketing_copy`Plan any piece of marketing copy, whether it's an ad, a landing page, a sales page or sales letter, an email, a subject line, a social post, a headline or a video script. It takes the goal, the reader and the offer, and returns which of the nine questions every reader silently asks this piece has to answer, which ones deserve the most words for this reader, and a few ways to answer each one, drawn from real advertising and linked to the Persuasion Taxonomy. One option is always the established move and the rest are less expected.	Plan any piece of marketing copy, whether it's an ad, a landing page, a sales page or sales letter, an email, a subject line, a social post, a headline or a video script. It takes the goal, the reader and the offer, and returns which of the nine questions every reader silently asks this piece has to answer, which ones deserve the most words for this reader, and a few ways to answer each one, drawn from real advertising and linked to the Persuasion Taxonomy. One option is always the established move and the rest are less expected.	No	Yes	Yes	No
`read_ab_test_result`Read the result of an A/B test. You get each version's conversion rate and lift, whether the difference is statistically significant, the confidence interval, and the chance each version really beats the original. It also warns you about the things that make a test result lie. Those include too few conversions, traffic that didn't split the way it should (a sample ratio mismatch), stopping the moment it looked good, and testing too many versions at once. It answers questions like "did my test win?", "is this significant?", "which version won?" or "should I keep it running?"	Read the result of an A/B test. You get each version's conversion rate and lift, whether the difference is statistically significant, the confidence interval, and the chance each version really beats the original. It also warns you about the things that make a test result lie. Those include too few conversions, traffic that didn't split the way it should (a sample ratio mismatch), stopping the moment it looked good, and testing too many versions at once. It answers questions like "did my test win?", "is this significant?", "which version won?" or "should I keep it running?"	No	Yes	Yes	No

Details

Registry status: Active
Published: Nov 11, 2026
Updated: Nov 11, 2026
Website: https://taxonomy.coppica.com/⁠ (opens in a new tab)
Repository: https://github.com/Otha-Labs/persuasion-mcp⁠ (opens in a new tab)
Categories (suggested): Marketing and SEOSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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