tesseron: Tesseron allows live applications to declare typed actions using Zod-style builders, which MCP-compatible AI agents can invoke as tools over WebSocket. It provides a click-to-connect handshake, no browser automation, and capabilities like confirmation, elicitation, and sampling. The MCP gateway bundles with a Claude Code plugin for easy setup.; fastmcp: FastMCP is a standard framework for building Model Context Protocol (MCP) applications, which connect LLMs to tools and data. It simplifies the process by automatically generating schemas, validation, and documentation for tools, and managing transport negotiation and authentication for server connections. FastMCP offers a comprehensive solution for developing, deploying, and scaling MCP-powered systems.
Building AI-driven web apps where an agent directly manipulates UI state
Building LLM applications that interact with custom tools and data sources