Unified Context Layer (UCL) is a multi-tenant MCP server that enables AI agents, automation platforms, and applications to connect to over 1,000 SaaS tools via a single standardized /command endpoint. UCL abstracts away SDK sprawl, glue code, and complex authentication flows, allowing developers to orchestrate context-rich, cross-platform integrations without building and maintaining separate connectors for each service. It offers integrated platform support (Slack, Notion, HubSpot, Gmail, Jira, Shopify, and more), flexible authentication options (API key or tenant-based authentication), and comprehensive logging for troubleshooting. The server acts as a centralized gateway to unify access to disparate tools, supporting deployment via package installation or manual setup, and including robust error handling for diverse scenarios. It is designed for use with AI assistants and automation workflows, enabling real-time event streaming and easy integration into CI/CD or Docker-based environments through a single /command interface.