Migration deadline: Friday, June 5, 2026 at 00:00 UTC. The whole quantdataapi.com domain (this site and the API) is moving to nodebar.dev. In your code, update api.quantdataapi.comapi.nodebar.dev and replace the qda_ prefix on your API key with nb_. Same key body, no new key to receive.
Engineering notes

From the build log

Product updates, engineering notes, and how we think about quantitative finance infrastructure.

Introducing NodeBar: Quant Features Delivered via API
Product March 16, 2026

Introducing NodeBar: Quant Features Delivered via API

NodeBar delivers 348 precomputed quantitative features, technical analysis, statistical metrics, regime detection and more, via a single REST API. Skip the pipeline, go straight to the analysis.

Product New: Screener API, Correlation Matrix & Anomaly Detection

New: Screener API, Correlation Matrix & Anomaly Detection

Three new capabilities: scan 3,200+ symbols with programmable conditions, detect multicollinearity in your features, and catch anomalous market behavior, all via API.

Tutorial Financial Analysis with AI: How to Use LLMs with NodeBar

Financial Analysis with AI: How to Use LLMs with NodeBar

Learn how to use AI assistants like Claude and ChatGPT to build financial analysis tools, trading strategies and ML pipelines with NodeBar. From idea to working code in seconds.

Product Free Financial API: What You Can Build with the Demo Plan

Free Financial API: What You Can Build with the Demo Plan

Everything you can build with the free Demo plan: 348 features, 100 credits per day, EOD data, no credit card required. Three mini-projects included.

Tutorial Feature Engineering for ML Trading Models: A Practical Guide

Feature Engineering for ML Trading Models: A Practical Guide

How to generate ML-ready features for trading models using an API instead of building feature pipelines from scratch, with a complete model training example.

Tutorial How to Build a Trading Signal Pipeline Without Infrastructure

How to Build a Trading Signal Pipeline Without Infrastructure

A step-by-step guide to building a complete trading signal pipeline using only API calls, from feature extraction through signal generation to backtesting.

Research Macro Economic Indicators for Algorithmic Trading

Macro Economic Indicators for Algorithmic Trading

How macro economic data like GDP, CPI, and unemployment shape financial markets, and how to integrate macro indicators into your trading models via API.

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