Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source Google Zanzibar-inspired authorization service; fine-grained permissions for multi-tenant SaaS and AI agent access control at sub-millisecond latency.
Authzed (now SpiceDB) is an open-source, Google Zanzibar-inspired authorization service that enables developers to define and evaluate fine-grained permissions at scale, decoupling authorization logic from application code. Founded in 2021 and headquartered in San Francisco, Authzed built SpiceDB — an open-source implementation of Google's Zanzibar authorization system that powers Google Drive, Google Docs, and YouTube's permission systems — making enterprise-grade authorization accessible to development teams without Google-scale infrastructure.
Open-source API gateway with enterprise platform; raised $170M+; built on NGINX handling authentication, rate limiting, load balancing, and security as a horizontal layer; AI gateway capabilities add emerging LLM traffic management for multi-cloud API environments.
Kong is an enterprise API management and service connectivity platform providing an API gateway, service mesh, and developer portal for organizations managing hundreds of microservices and APIs. Founded in 2010 and headquartered in San Francisco, Kong open-sourced its core gateway technology (Kong Gateway, built on NGINX and Lua/Go) which has become one of the most widely deployed API gateways globally, creating a large community and commercial base. The company has raised over $170 million in total funding from investors including Index Ventures, GGV Capital, and others.
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