DUCKQUANT / THE QUANT & AI DIRECTORY
502 resources, ranked by in-directory PageRank
Distributed event streaming platform commonly used to transport real-time market data feeds.
Workflow scheduler widely used to orchestrate market data ingestion and ETL pipelines.
Marketplace and discovery platform for alternative data vendors and buyers.
Alternative datasets derived from web activity, job postings, e-commerce and location data.
Low-cost historical and real-time US options and stock data APIs with full tick and quote history.
Official Python client for Databento historical and live market data.
Open-source metadata platform providing data discovery, lineage and governance.
Developer API and CLI from Longbridge giving real-time HK and US market data plus trading.
Open Taiwan-focused financial database with 50+ datasets updated daily and a Python API.
Zero-dependency JavaScript SDK for fetching Chinese stock market data without a backend.
HTTP API server that exposes AkShare financial data interfaces over REST for any language.
Opinionated open-source time-series database built on PostgreSQL and ClickHouse.
High-performance time-series database from FINOS for capital-markets message data.
Time-series database combined with MQTT, HTTP and data visualization for edge and server use.
CNCF sandbox distributed time-series database for high-concurrency workloads.
Cloud-native open-source distributed time-series database with high compression.
Scalable high-availability distributed time-series database.
Distributed cloud-native time-series database incubating at the Apache Software Foundation.
High-performance scalable time-series database designed for high-cardinality ingestion workloads.
Fast and cost-effective time-series database compatible with Prometheus querying.
Official Chinese bond market data and yield curve publication from China Central Depository & Clearing.
Korea Exchange official market data, indices and listed company information.
Energy and natural resources research with proprietary commodity asset and market datasets.
Human mobility and location data platform for retail and real-estate analytics.
Job postings data sourced directly from company websites for labor and growth signals.
Credit and debit card transaction panels providing alternative data on consumer spending.
Developer-friendly REST and WebSocket API for US stock and options market data.
Market data API service providing quotes, historical bars and corporate actions.
Cloud-based real-time and historical market data APIs covering US and global exchanges.
Low-latency global market data feed and ticker plant infrastructure for trading firms.
Hardware-accelerated market data feed handlers and ticker plants for low-latency trading.
Expert interview transcript library and company financial data platform for investors.
SEO, traffic and digital marketing data used as an alternative data source for company analysis.
Location and foot-traffic alternative data provider built from mobile geolocation signals.
Data-driven research firm producing alternative datasets from transaction and web activity data.
Alternative data provider building transaction, app and web datasets for institutional investors.
