HarnessAPI: A Skill-First Framework for Unified Streaming APIs and MCP Tools
Researchers have developed HarnessAPI, a Python framework designed to streamline the creation of tools for AI agents and traditional HTTP clients. This framework uses a typed skill folder as the single source of truth, automatically generating both a streaming HTTP endpoint with Server-Sent Events and an MCP tool registration for agent runtimes like Claude and Cursor. HarnessAPI aims to eliminate code duplication and ensure consistency between the two representations, reducing boilerplate code by 74% in tested scenarios. AI
IMPACT Simplifies development for AI agents by unifying tool creation and API endpoints.