Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source API management platform. Expanding into Kafka governance and agentic AI oversight. $60M Series C (May 2025). $125M+ raised. Founded 2015, Denver.
Gravitee is an open-source API management and governance platform founded in 2015 in Lille, France, built on the mission of giving engineering teams a flexible, open foundation for managing the full lifecycle of APIs, events, and AI agent interactions. The company's core technology is a developer-friendly API gateway and management platform available under an open-source license, enabling organizations to adopt and customize the platform without vendor lock-in — a critical differentiator in a market historically dominated by expensive proprietary solutions.\n\nGravitee's platform has expanded well beyond traditional REST API management to cover asynchronous APIs, Kafka governance, and emerging agentic AI oversight use cases. Its product suite includes an API gateway, developer portal, access management, and API analytics, all deployable on-premises or in the cloud. The company serves organizations ranging from fast-growing startups to large enterprises in financial services, telecommunications, and healthcare, where API sprawl and governance complexity are acute problems. Its open-source roots and active community give it distribution advantages in developer-led buying motions.\n\nGravitee raised a $60 million Series C in May 2025, bringing total funding to more than $125 million and validating investor confidence in its expanded platform vision. As organizations adopt AI agents that communicate through APIs and events, Gravitee's roadmap to govern agentic interactions positions it at the intersection of API management and AI infrastructure — an emerging category with significant enterprise spending implications. Its combination of open-source credibility, broad protocol support, and growing AI governance capabilities makes it a compelling platform for enterprises navigating the complexity of modern distributed architectures.
Kong-acquired (2019) open-source API testing and development platform with 1M+ users; Insomnia 10 added AI Runner, competing with Postman for the API client developer tooling market.
Insomnia is an open-source API development and testing platform that provides developers with a powerful client for designing, debugging, and testing REST, GraphQL, SOAP, and WebSocket APIs — offering an intuitive interface for crafting API requests, inspecting responses, organizing API collections, and writing automated tests without the complexity of commercial alternatives. Founded in 2014 by Gregory Schier in Victoria, Canada, Insomnia was acquired by Kong (the leading API management company) in October 2019 and has grown to over 1 million users as of September 2024.
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