Newsletrix

Query competitor newsletter analytics (subject lines, SWOT, send patterns, ESP) from Claude, ChatGPT or Cursor.

Hosted MCP Server

npx add-mcp 'https://beacon.newsletrix.com/mcp'

Installs into Claude Code, Codex, Cursor and more

Documentation

What is MCP?

One protocol. Every assistant. Your data.

The Model Context Protocol is an open standard for letting AI assistants talk to external tools and data. Newsletrix implements it so the assistant you already use can answer questions about your real newsletter analytics, not a generic web search.

Tools

What your assistant can call

Seven structured tools the AI can invoke automatically. No prompt engineering required.

Tool	What it returns	Use case
list_newsletters	Paginated list of newsletters in your account, with subject, brand, and effectiveness score.	Browse
get_newsletter	Full analysis for a specific send: SWOT, recommendations, scores, tone, compliance.	Detail
search_newsletters	Search by subject line or brand name across your tracked sends.	Search
get_brands	Every brand you track with aggregate metrics: avg open, CTR, effectiveness, last send.	Aggregate
get_dashboard_stats	High-level account stats: total sends, average scores, first / last newsletter, brand count.	Aggregate
get_recommendations	AI improvement recommendations across your newsletters with rationale and expected impact.	Strategy
get_topics	Top topics and keywords across the newsletters you track, ranked by frequency.	Insights

Example prompts

Things you'll actually ask

Drop these into Claude, ChatGPT, or Cursor once Newsletrix is connected.

How it works

Three steps. About two minutes.

Generate a token, paste a config, ask a question. That's the whole setup.

Generate an MCP token

Open Settings → AI assistant (MCP) in your Newsletrix dashboard. Click "New token", name it per device, pick an expiry, copy the value.

Add Newsletrix to your AI tool

Paste the snippet for Claude Desktop, ChatGPT connectors, or Cursor below. The endpoint is https://beacon.newsletrix.com/mcp.

Ask anything

The assistant auto-discovers the tools and calls them when relevant. No special syntax, no chained commands - you just ask.

Setup snippets

Copy, paste, done

One block per client. Replace YOUR_TOKEN with the value from your dashboard.

Claude Desktop

Edit claude_desktop_config.json and add Newsletrix under mcpServers:

{
  "mcpServers": {
    "newsletrix": {
      "type": "http",
      "url": "https://beacon.newsletrix.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_TOKEN"
      }
    }
  }
}

Restart Claude Desktop. Newsletrix tools appear in the connectors menu.

ChatGPT (Pro / Team / Enterprise)

In ChatGPT settings, open Connectors → Add custom connector and use these values:

Name:           Newsletrix
URL:            https://beacon.newsletrix.com/mcp
Authentication: Bearer
Token:          YOUR_TOKEN

Save and enable. ChatGPT will call Newsletrix tools whenever your prompt looks like newsletter analytics work.

Cursor

Open Settings → MCP in Cursor and paste:

{
  "mcpServers": {
    "newsletrix": {
      "url": "https://beacon.newsletrix.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_TOKEN"
      }
    }
  }
}

Cursor will list list_newsletters, get_newsletter, and the rest in the tools panel.

Before & after

The same question, two different worlds

What changes when your assistant can actually read your Newsletrix account.

You ask	Without MCP	With Newsletrix MCP
"What did my competitors send last week?"	Generic guess based on training data	Pulls real sends from your account, by brand and date
"Compare Acme vs Vega on subject lines"	Hand-roll a CSV first	Uses live aggregate metrics per brand
"Top 5 recommendations to ship this week"	Best-practice fluff	Pulls your actual ranked recommendations
"Show me the analysis for newsletter X"	"I don't have access to that"	Returns the SWOT, scores, and rationale
End-to-end answer time	Re-prompt & copy-paste	One question

FAQ

Frequently asked questions

The short version of everything teams ask before flipping it on.

What is MCP?

Model Context Protocol - an open standard that lets AI assistants connect to external tools and data sources in a structured, auditable way. Newsletrix runs an MCP server so any compatible client can read your analytics.

Which assistants are supported?

Claude Desktop, ChatGPT (Pro / Team / Enterprise), Cursor, Zed, and any other MCP-compatible client. Both modern Streamable HTTP and legacy SSE transports are supported.

Is this on every plan?

Yes. Like every Newsletrix feature, the MCP server is included on every plan, including the free tier.

How is access secured?

Bearer-token auth, scoped to your account. You generate, name, and revoke tokens from your dashboard. Tokens never see another user's data.

Can the assistant change my data?

No. The exposed tools are read-only. Your assistant can list, fetch, and search - it can't delete newsletters, edit recommendations, or change settings.

Does it work with self-hosted models?

Anything that speaks MCP can connect. Local LLM frontends like Cursor's local mode, custom Claude SDK agents, and self-hosted clients all work the same way.

Get started

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