Designing APIs for agents

The New Stack · 2 months ago · 9

Webflow redesigned its MCP server throughout 2025 to make APIs work better for AI agents rather than humans, moving from low-level developer endpoints to task-oriented tools that reduce multi-step orchestration. The company built the MCP server on Cloudflare Durable Objects to manage stateful sessions and support both headless operations and browser-based Designer actions, with tool surfaces organized into layered domain tools and actions. Agent-optimized APIs now prioritize execution reliability, clearer error guidance, and intent-driven operations over developer flexibility, with Webflow exploring filesystem abstractions and code-oriented environments as long-term solutions to reduce discovery overhead as product capabilities expand.