QuestDB vs RapidAPI
Side-by-side comparison of AI visibility scores, market position, and capabilities
London YC W20 fastest-growing open-source time-series database with 15K+ GitHub stars; $14.4M total ($12M Series A Nov 2021) with SIMD vector SQL serving investment banks and hedge funds competing with InfluxDB for high-frequency time-series.
About
QuestDB is a London, United Kingdom-based open-source time-series database — backed by Y Combinator (W20) with $14.4-18 million in total funding including a $12 million Series A in November 2021 from Intel Ignite, Approx.vc, New Forge, and 468 Capital — providing financial services companies, IoT operators, and data infrastructure teams with the fastest time-series database globally (as measured by DB-Engines growth ranking), achieving 15,000+ GitHub stars through column-oriented storage, parallelized vector execution, SIMD CPU instructions, and low-latency SQL queries that enable blazingly fast ingestion and analysis of time-stamped data. Founded in 2019, QuestDB serves Tier 1/2 investment banks, leading hedge funds, national stock exchanges, and major crypto firms where microsecond-level query performance on time-series data is operationally critical.
Largest API marketplace with 4M developers and thousands of API providers; unified discovery, testing, and management for public and enterprise internal APIs.
About
RapidAPI is the world's largest API marketplace and developer hub, providing a platform where developers discover, connect to, and manage thousands of public and private APIs through a unified interface. Founded in 2015 and headquartered in San Francisco, RapidAPI connects over 4 million developers with APIs from thousands of providers — weather data, financial data, social media, translation, geolocation, and every category of web service — through a single authentication layer and consistent SDK.
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