Prompt

Design analytics API for data access.

<data_consumers>
{internal and external users}
</data_consumers>

<analytics_needs>
{types of queries and aggregations}
</analytics_needs>

<performance_requirements>
{response time and concurrency}
</performance_requirements>

Design:
1. API structure
2. Query language
3. Caching strategy
4. Rate limiting
5. Authentication
6. Documentation