How to connect Amplitude to Claude Code

1. 1. Enable Amplitude in Metorial

   In your Metorial portal, enable the Amplitude MCP server and sign in with the account that owns the data. Access stays governed by your team policies.

2. 2. Add the server over HTTP

   Add --scope user to use it in every project.

   Copy

   claude mcp add --transport http metorial <your-magic-mcp-url>

3. 3. Sign in

   Run /mcp, select Metorial and sign in to load Amplitude tools.

• Track Events: Send one or more events to Amplitude for analytics tracking with user properties, event properties, revenue data, and selected device metadata.
• Get Chart Results: Download results from a saved Amplitude chart by its chart ID.
• Manage Annotations: Manage chart annotations in Amplitude.
• Manage Cohorts: List, retrieve, create, or update behavioral cohorts in Amplitude.
• Get User Profile: Retrieve an Amplitude user profile including user properties, computed properties, and synced cohort memberships.
• Query Event Segmentation: Analyze event data with segmentation, filtering, and grouping.
• Query User Composition: Analyze the distribution of a user property across your active users.
• Query Sessions: Retrieve session metrics including session length distribution, average duration in seconds, and average sessions per user over a date range.
• Delete User Data: Request deletion of user data from Amplitude for privacy compliance (GDPR/CCPA).
• Query Active Users: Retrieve daily, weekly, or monthly active and new user counts for the project already selected by the API-key connection.
• Manage Taxonomy: Manage your Amplitude tracking plan (taxonomy).
• Identify User: Set or update user properties for a specific user without sending an event.
• Query Funnel: Analyze conversion funnels to understand how users progress through a sequence of events.
• Query Retention: Analyze user retention to understand how well users are retained over time after performing a starting event.
• Export Events: Export Amplitude raw event files for an uploaded-time range as a downloadable ZIP file.
• And 20 more on the Amplitude MCP server page.

• Amplitude tools appear as mcp__metorial__<tool>. Use that name in permission rules to allow or deny a tool.
• Run /mcp to see whether Metorial is connected and to sign in again.
• Claude Code warns when a tool result passes 10,000 tokens and caps it at 25,000 by default. Raise the cap with MAX_MCP_OUTPUT_TOKENS.
• Pre-approve trusted Amplitude tools with allow rules in your settings so Claude Code stops asking each time.

claude mcp list shows "Needs authentication"

Run /mcp, select Metorial, and sign in. If sign-in keeps failing, choose Clear authentication in the same menu and sign in again.

A teammate sees "Pending approval"

Servers shared through a project .mcp.json need approval. Run claude in the project and approve Metorial when asked.

Large tool results are cut off

Claude Code limits MCP tool output to 25,000 tokens by default. Raise it with the MAX_MCP_OUTPUT_TOKENS environment variable.

Based on the Claude Code MCP documentation.