The official Python client library for Databento
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Updated
Sep 22, 2026 - Python
The official Python client library for Databento
Databento Binary Encoding (DBN) - Fast message encoding and storage format for market data
The official Rust client library for Databento
The official C++ client library for Databento
High-performance .NET client for Databento market data - Live streaming, historical queries, and reference data APIs
Build TradingView-aligned futures bars from Databento data and backtest your own strategies. Designed for AI-assisted development.
Inspectable execution simulator for order-book replay and latency-aware fill simulation
Databento, CME's official feed, 1-minute bars, continuous unadjusted front-month ES, 2010 to 2026, about twenty dollars.
Production-ready OHLCV pipeline: Download 1-second bars from Databento, aggregate to higher timeframes, validate data integrity
Low-latency C++20 limit order book & matching engine. Price-time priority, ~45 ns median matching-path op, validated on real Nasdaq MBO/ITCH data (Databento).
Deterministic, offline replay of CME Micro E-mini (MES) sessions with a fail-closed Topstep risk-state journal. Research only, alert-only, never submits orders.
Browser-based futures replay simulator + live monitor with custom metric calculation and threshold alerting.
Command-line downloader for Databento historical market data
Fail-closed market-data acquisition, canonicalization and causal research platform for CME NQ/MNQ futures.
R client for the Databento market data HTTP API: tibbles and parquet, no Python and no DBN decoder, with a wire-level equivalence suite against the official Python client.
C++17 header-only backtesting framework for algorithmic trading on tick data, with CSV/Parquet support and an ImGui/ImPlot GUI
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