Epsilla is an all-in-one Agent-as-a-Service platform founded in 2023 and backed by Y Combinator (S23 batch) alongside Nivesha Ventures and Ride Wave Ventures. It targets domain professionals, AI developers, and enterprise teams who want to build production-ready vertical AI agents without managing infrastructure or writing extensive code. The platform centers on Retrieval-Augmented Generation (RAG): users connect private data sources (uploaded files, websites, Google Drive, Notion) to build a proprietary knowledge base, which the AI agent then queries at runtime. Epsilla supports advanced RAG modes including modular, agentic, and graph-based retrieval, as well as a high-performance built-in vector database for fast semantic search. Agent construction is handled through a no-code drag-and-drop builder. Users can customize agent appearance, tune system prompts, define multi-step workflows, and configure tool-calling behavior. A notable 2025-2026 architectural addition is Tool Search: instead of pre-loading all tool definitions into the context window, the agent dynamically discovers and loads only the relevant tools on demand, reportedly reducing token costs by up to 85% and improving tool-selection accuracy. Epsilla includes built-in observability: agent performance monitoring, user engagement analytics, and a feedback management layer. Deployment is flexible, supporting shared cloud, private cloud, and enterprise on-premise options. The platform serves industry verticals including financial services, manufacturing, education, sales, construction, and research management. Pricing starts with a free-forever tier sufficient for prototyping, a paid plan starting at approximately $29/month, and custom enterprise contracts with advanced security, dedicated support, and private-cloud deployment. Key features: - No-code drag-and-drop AI agent builder - RAG-as-a-Service with support for modular, agentic, and graph-based retrieval - Built-in high-performance vector database for private knowledge bases - Dynamic Tool Search to reduce token costs and improve tool-selection accuracy - Data connectors for files, websites, Google Drive, and Notion - Agent performance monitoring and user engagement analytics - Flexible deployment: shared cloud, private cloud, or on-premise - Vertical-specific templates for finance, manufacturing, education, and more
Free tier available; paid plans from ~$29/month; custom Enterprise pricing for private cloud and advanced security