PostHog Kiro Power

A Kiro Power for interacting with PostHog analytics directly from your IDE.

Features

• Insights & Analytics - Run trends, funnels, and HogQL queries
• Feature Flags - Create, update, and manage feature flags
• Experiments - Set up and analyze A/B tests
• Surveys - Create surveys and view response statistics
• Error Tracking - List and investigate application errors
• Dashboards - Create and manage analytics dashboards
• LLM Analytics - Track AI/LLM costs across models

Installation

Prerequisites

1. A PostHog account at posthog.com
2. A Personal API Key with MCP Server preset:
   • Go to https://app.posthog.com/settings/user-api-keys?preset=mcp_server
   • Create a new key and copy it

Install in Kiro

1. Open Kiro
2. Open the Powers panel (Command Palette → "Open Powers")
3. Click "Add Custom Power"
4. Choose one of:
   • Local Directory: Clone this repo and provide the path to powers/posthog
   • Git Repository: Use this repo URL (once published)
5. Update the API key in the power's mcp.json:

   "POSTHOG_AUTH_HEADER": "Bearer phx_your_api_key_here"

Usage

Once installed, Kiro will automatically activate the PostHog power when you ask about:

• Analytics, funnels, or user behavior
• Feature flags or experiments
• Surveys or user feedback
• Error tracking
• PostHog-related queries

Example Prompts

• "Show me the signup funnel conversion for the last 7 days"
• "Create a feature flag for the new checkout flow at 10% rollout"
• "What errors are users seeing in production?"
• "Set up an A/B test for the pricing page"
• "How many daily active users do we have?"

Configuration

The power uses PostHog's remote MCP server. Configuration is in powers/posthog/mcp.json:

{
  "mcpServers": {
    "posthog": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://mcp.posthog.com/mcp",
        "--header",
        "Authorization:${POSTHOG_AUTH_HEADER}"
      ],
      "env": {
        "POSTHOG_AUTH_HEADER": "Bearer YOUR_PERSONAL_API_KEY_HERE"
      }
    }
  }
}

If your client doesn't support Streamable HTTP, use the SSE endpoint instead:

https://mcp.posthog.com/sse

Documentation

• POWER.md - Main power documentation
• steering/steering.md - Advanced HogQL queries and workflows
• PostHog MCP Docs - Official PostHog MCP documentation

Contributing

Contributions welcome! Please open an issue or PR.