Artificial IntelligenceFor Financial Markets
Build faster. Trade smarter. Unlock AI-powered insights via our REST APIs—
built for quants, algo traders, and fintech devs.
AI-Powered Market Regime Signals
QuantHQ delivers real-time market regime probabilities using an ensemble of cutting-edge Hidden Markov Models—built for hedge funds, quants, and fintech innovators. Detect shifts early, manage risk smarter, and ride macro trends with clarity.
Institutional Intelligence, API Ready
Our regime engine outputs daily probabilities that the market is in a bullish, bearish, or neutral phase. Signals are derived from SPY, QQQ, DIA, IWM, and VTI—each modeled with an ensemble of statistically robust HMMs.
- Start date: Jan 15, 2015
- Output: JSON response with
rhoTsignal per day - Format: Fast REST API, ideal for trading algos & ML pipelines
- Use cases: Regime-aware asset allocation, volatility targeting, macro overlays
Real-time performance of a walk-forward strategy powered by QuantHQ's rhoT signal — no lookahead bias, updated daily. Tracks regime-aware equity curve vs. SPY.
Everything you need
A smarter infrastructure for signal-driven trading. Build, backtest, and deploy faster with quant HQ.
API-first architecture
Seamless REST access to structured trading signals, regime shifts, and ML-powered indicators. Built for speed and scale.
AI-driven signal engine
Quantitative signals crafted using ensemble models, hidden Markov regimes, and deep learning pipelines trained on decades of historical data.
Fast and responsive
Signals in under 500ms. Horizontally scalable infrastructure built for funds and fintechs.
Historical depth
Decades of cleaned and normalized market data power every model. No survivorship bias, just clean, consistent inputs.
Extensive documentation
Built for devs. We ship with open, example-rich documentation, tutorials, and client libraries to accelerate your first signal call.
Simple pricing
Transparent monthly pricing for unlimited API access. No pay-per-request surprises—just one plan across asset classes.
Intuitive and easy-to-use
Powerful data, simple access. Our unified API makes it easy to harness quant-grade insights instantly.
QuantHQ API
Access high-signal quantitative data for systematic and algorithmic trading. Whether you're building backtests, powering live strategies, or feeding internal dashboards— our API delivers reliable, clean, and real-time financial intelligence.
- Signals designed for quantitative models and trading systems
- Standardized JSON responses for seamless integration
- RESTful endpoints with low-latency data delivery
- Authentication via simple Bearer tokens
- Python and cURL examples to get you started fast
Built for quants. Trusted by traders.
QuantHQ delivers high-signal APIs for systematic and algorithmic trading—designed for hedge funds, solo quants, fintech teams, and academic researchers.
- Standardized JSON: Easy integration into any app or quant tool.
- Tutorials & Examples: Get started quickly with real-world use cases.
curl -X POST https://quanthq.io/hmm \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"symbol":"SPY","startDate":"2017-01-01","endDate":"2025-12-31"}'Direct from the source of intelligence
At quantHQ.io, we don’t just provide data — we deliver powerful, cutting-edge machine learning models designed specifically for quantitative and systematic trading. Our APIs give you direct access to advanced signals and market insights, bypassing noisy intermediaries so you can build smarter, faster, and more confident trading strategies.
About quantHQ.ioBuild smarter with quant HQ signals
Whether you're optimizing a live strategy, testing hypotheses, or building a fund-ready pipeline — our ML-powered market regime signals give you the infrastructure edge you need.