Growth Marketer Loadout
5 MCP servers for analytics-driven marketing
Last verified:
Pull funnel data from PostHog, look up revenue impact in Stripe, send campaigns via Resend, broadcast wins in Slack, document plays in Notion. The growth feedback loop in one place.
Install Growth Marketer Loadout
Paste into~/Library/Application Support/Claude/claude_desktop_config.json{
"mcpServers": {
"posthog": {
"command": "npx",
"args": ["-y", "posthog-mcp"],
"env": { "POSTHOG_API_KEY": "phc_..." }
},
"stripe": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-stripe"],
"env": { "STRIPE_SECRET_KEY": "sk_live_..." }
},
"resend": {
"command": "npx",
"args": ["-y", "resend-mcp"],
"env": { "RESEND_API_KEY": "re_..." }
},
"slack": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-slack"],
"env": { "SLACK_BOT_TOKEN": "xoxb-...", "SLACK_TEAM_ID": "T..." }
},
"notion": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-notion"],
"env": { "NOTION_TOKEN": "secret_..." }
}
}
}After pasting, fully restart your MCP client. Replace placeholders (paths, API keys) with your own values.
What's in this loadout
- PostHog MCPcoremcp
Pull funnels, retention curves, feature-flag impact.
- Stripe MCP Servercoremcp
Tie marketing actions to actual revenue and refund data.
- Resend MCPcoremcp
Send segmented campaigns and one-off broadcasts.
- Slack MCP Serveroptionalmcp
Share weekly wins and surface growth experiments to the team.
- Notion MCP Serveroptionalmcp
Growth playbooks, experiment library, weekly reports.
What you can do with it
Weekly growth report
Pull last week's key funnels from posthog, MRR change from stripe, and any experiments we ran from notion. Compose a 6-bullet weekly growth report and post it in #growth on slack.Win-back campaign
Find users in stripe who cancelled in the last 60 days. Through resend, draft a 2-step win-back campaign offering a 30% discount. Document the play in notion under "Growth Playbooks".Experiment readout
For the "pricing-page-v3" feature flag in posthog, pull conversion rate before/after rollout. Cross-check stripe to confirm revenue impact. Post the result in #growth on slack.
Client compatibility
- Claude Desktop 0.7.4Tested ✓
- Cursor 0.42+Tested ✓
- Windsurf 1.4Tested ✓
- Continue 0.9Untested
Variants
Heavy version
Adds Mixpanel for teams on a different analytics stack and Amplitude for dual reporting.
Adds: mixpanel-mcp, amplitude-mcp
Lite version
PostHog + Resend. Pull insights, send campaigns.
Removes: mcp-server-stripe, mcp-server-slack, mcp-server-notion
FAQ — Growth Marketer Loadout
What is the Growth Marketer Loadout?
Pull funnel data from PostHog, look up revenue impact in Stripe, send campaigns via Resend, broadcast wins in Slack, document plays in Notion. The growth feedback loop in one place. It includes 5 MCP servers: PostHog MCP, Stripe MCP Server, Resend MCP, Slack MCP Server, Notion MCP Server.
Does this loadout work with Cursor and Windsurf?
Yes. The config block above is one JSON object that drops into Claude Desktop's, Cursor's, or Windsurf's MCP config. Each client uses the same mcpServers schema; only the file path differs.
How long does setup take?
About 3 minutes the first time: copy the config, paste it into your client's MCP configuration file, replace placeholder API keys with your own, and restart the client.
Can I customise this loadout?
Yes. Use the Lite version if you want fewer servers, or the Heavy version to add 2 more for advanced workflows. You can also remove any individual server by deleting its entry from the JSON.
How much does it cost?
Loadout itself is free. Most listed servers are open-source and free to run. Servers that talk to paid SaaS (Stripe, SendGrid, Linear, etc.) follow that vendor's pricing.
When was this loadout last verified?
Last verified on 2026-04-24. We re-test featured loadouts at least monthly and update the config when MCP servers ship breaking changes.