Overview
The EntityML CLI ships with the same Python package as the SDK. Installentityml once and you get both:
from entityml import EntityMLClient- the
entitymlterminal command
The CLI is no longer documented as a separate
entityml-cli package. The previous poly-storage command remains a compatibility alias, but new examples use entityml.Install
Use one of these install methods:Authentication
Use either--api-key or the ENTITY_API_KEY environment variable:
Coverage notes
- Orderbook data exists for a subset of markets from
2025-09-01on Polymarket and2026-02-17for Kalshi, but coverage is not continuous. - Broad Polymarket crypto-related market coverage begins on
2026-02-04. Broad Kalshi crypto-related market coverage begins on2026-02-25. - Broad all-market capture begins on
2026-04-02for Polymarket and2026-03-31for Kalshi, with known April 2026 quality exceptions. - Use the Polymarket and Kalshi date-range endpoints to confirm per-market availability.
- See Data Quality before depending on April 2026 data.