Claude Code Analytics API

The Claude Code Analytics Admin API provides programmatic access to daily aggregated usage metrics for Claude Code users, enabling organizations to analyze developer productivity and build custom dashboards. This API bridges the gap between our basic Analytics dashboard and the complex OpenTelemetry integration.

This API enables you to better monitor, analyze, and optimize your Claude Code adoption:

• Developer Productivity Analysis: Track sessions, lines of code added/removed, commits, and pull requests created using Claude Code
• Tool Usage Metrics: Monitor acceptance and rejection rates for different Claude Code tools (Edit, Write, NotebookEdit)
• Cost Analysis: View estimated costs and token usage broken down by Claude model
• Custom Reporting: Export data to build executive dashboards and reports for management teams
• Usage Justification: Provide metrics to justify and expand Claude Code adoption internally

Quick start

Get your organization's Claude Code analytics for a specific day:

curl "https://api.anthropic.com/v1/organizations/usage_report/claude_code?\
starting_at=2025-09-08&\
limit=20" \
  --header "anthropic-version: 2023-06-01" \
  --header "x-api-key: $ADMIN_API_KEY"

User-Agent: YourApp/1.0.0 (https://yourapp.com)

Claude Code Analytics API

Track Claude Code usage, productivity metrics, and developer activity across your organization with the /v1/organizations/usage_report/claude_code endpoint.

Key concepts

• Daily aggregation: Returns metrics for a single day specified by the starting_at parameter
• User-level data: Each record represents one user's activity for the specified day
• Productivity metrics: Track sessions, lines of code, commits, pull requests, and tool usage
• Token and cost data: Monitor usage and estimated costs broken down by Claude model
• Cursor-based pagination: Handle large datasets with stable pagination using opaque cursors
• Data freshness: Metrics are available with up to 1-hour delay for consistency

For complete parameter details and response schemas, see the Claude Code Analytics API reference.

Basic examples

Get analytics for a specific day

curl "https://api.anthropic.com/v1/organizations/usage_report/claude_code?\
starting_at=2025-09-08" \
  --header "anthropic-version: 2023-06-01" \
  --header "x-api-key: $ADMIN_API_KEY"

Get analytics with pagination

# First request
curl "https://api.anthropic.com/v1/organizations/usage_report/claude_code?\
starting_at=2025-09-08&\
limit=20" \
  --header "anthropic-version: 2023-06-01" \
  --header "x-api-key: $ADMIN_API_KEY"

# Subsequent request using cursor from response
curl "https://api.anthropic.com/v1/organizations/usage_report/claude_code?\
starting_at=2025-09-08&\
page=page_MjAyNS0wNS0xNFQwMDowMDowMFo=" \
  --header "anthropic-version: 2023-06-01" \
  --header "x-api-key: $ADMIN_API_KEY"

Request parameters

Available metrics

Each response record contains the following metrics for a single user on a single day:

Dimensions

• date: Date in RFC 3339 format (UTC timestamp)
• actor: The user or API key that performed the Claude Code actions (either user_actor with email_address or api_actor with api_key_name)
• organization_id: Organization UUID
• customer_type: Type of customer account (api for API customers, subscription for Pro/Team customers)
• terminal_type: Type of terminal or environment where Claude Code was used (e.g., vscode, iTerm.app, tmux)

Core metrics

• num_sessions: Number of distinct Claude Code sessions initiated by this actor
• lines_of_code.added: Total number of lines of code added across all files by Claude Code
• lines_of_code.removed: Total number of lines of code removed across all files by Claude Code
• commits_by_claude_code: Number of git commits created through Claude Code's commit functionality
• pull_requests_by_claude_code: Number of pull requests created through Claude Code's PR functionality

Tool action metrics

Breakdown of tool action acceptance and rejection rates by tool type:

• edit_tool.accepted/rejected: Number of Edit tool proposals that the user accepted/rejected
• write_tool.accepted/rejected: Number of Write tool proposals that the user accepted/rejected
• notebook_edit_tool.accepted/rejected: Number of NotebookEdit tool proposals that the user accepted/rejected

Model breakdown

For each Claude model used:

• model: Claude model identifier (e.g., claude-sonnet-4-5-20250929)
• tokens.input/output: Input and output token counts for this model
• tokens.cache_read/cache_creation: Cache-related token usage for this model
• estimated_cost.amount: Estimated cost in cents USD for this model
• estimated_cost.currency: Currency code for the cost amount (currently always USD)

Response structure

The API returns data in the following format:

{
  "data": [
    {
      "date": "2025-09-01T00:00:00Z",
      "actor": {
        "type": "user_actor",
        "email_address": "[email protected]"
      },
      "organization_id": "dc9f6c26-b22c-4831-8d01-0446bada88f1",
      "customer_type": "api",
      "terminal_type": "vscode",
      "core_metrics": {
        "num_sessions": 5,
        "lines_of_code": {
          "added": 1543,
          "removed": 892
        },
        "commits_by_claude_code": 12,
        "pull_requests_by_claude_code": 2
      },
      "tool_actions": {
        "edit_tool": {
          "accepted": 45,
          "rejected": 5
        },
        "multi_edit_tool": {
          "accepted": 12,
          "rejected": 2
        },
        "write_tool": {
          "accepted": 8,
          "rejected": 1
        },
        "notebook_edit_tool": {
          "accepted": 3,
          "rejected": 0
        }
      },
      "model_breakdown": [
        {
          "model": "claude-sonnet-4-5-20250929",
          "tokens": {
            "input": 100000,
            "output": 35000,
            "cache_read": 10000,
            "cache_creation": 5000
          },
          "estimated_cost": {
            "currency": "USD",
            "amount": 1025
          }
        }
      ]
    }
  ],
  "has_more": false,
  "next_page": null
}

Pagination

The API supports cursor-based pagination for organizations with large numbers of users:

1. Make your initial request with optional limit parameter
2. If has_more is true in the response, use the next_page value in your next request
3. Continue until has_more is false

The cursor encodes the position of the last record and ensures stable pagination even as new data arrives. Each pagination session maintains a consistent data boundary to ensure you don't miss or duplicate records.

Common use cases

• Executive dashboards: Create high-level reports showing Claude Code impact on development velocity
• AI tool comparison: Export metrics to compare Claude Code with other AI coding tools like Copilot and Cursor
• Developer productivity analysis: Track individual and team productivity metrics over time
• Cost tracking and allocation: Monitor spending patterns and allocate costs by team or project
• Adoption monitoring: Identify which teams and users are getting the most value from Claude Code
• ROI justification: Provide concrete metrics to justify and expand Claude Code adoption internally

Frequently asked questions

How fresh is the analytics data?

Claude Code analytics data typically appears within 1 hour of user activity completion. To ensure consistent pagination results, only data older than 1 hour is included in responses.

Can I get real-time metrics?

No, this API provides daily aggregated metrics only. For real-time monitoring, consider using the OpenTelemetry integration.

How are users identified in the data?

Users are identified through the actor field in two ways:

• user_actor: Contains email_address for users who authenticate via OAuth (most common)
• api_actor: Contains api_key_name for users who authenticate via API key

The customer_type field indicates whether the usage is from api customers (API PAYG) or subscription customers (Pro/Team plans).

What's the data retention period?

Historical Claude Code analytics data is retained and accessible through the API. There is no specified deletion period for this data.

Which Claude Code deployments are supported?

This API only tracks Claude Code usage on the Claude API (1st party). Usage on Amazon Bedrock, Google Vertex AI, or other third-party platforms is not included.

What does it cost to use this API?

The Claude Code Analytics API is free to use for all organizations with access to the Admin API.

How do I calculate tool acceptance rates?

Tool acceptance rate = accepted / (accepted + rejected) for each tool type. For example, if the edit tool shows 45 accepted and 5 rejected, the acceptance rate is 90%.

What time zone is used for the date parameter?

All dates are in UTC. The starting_at parameter should be in YYYY-MM-DD format and represents UTC midnight for that day.

See also

The Claude Code Analytics API helps you understand and optimize your team's development workflow. Learn more about related features:

• Admin API overview
• Admin API reference
• Claude Code Analytics dashboard
• Usage and Cost API - Track API usage across all Anthropic services
• Identity and access management
• Monitoring usage with OpenTelemetry for custom metrics and alerting