LLMs are great at writing code but struggle with writing tool calls. Code Mode solves this by giving your model ONE powerful tool: a TypeScript execution sandbox with access to your entire toolkit. Complex, multi-step workflows thereby become a single batched execution.
Independent studies show massive gains: 60% faster execution, 68% fewer tokens, 88% fewer round-trips, while Anthropic's research team found a massive reduction of 98.7% in token usage using CodeMode.
As we were tinkering with Universal Tool Calling Protocol (UTCP) we kept hearing about the same hurdle: Cool spec but where s the list of tools I can actually call?
Open-source SDK which allows you to build custom agents which with any tool or native endpoint, with only 4 lines of code.
UTCP has collectively +1k GitHub stars, +5k downloads, and is trusted by engineers at AWS, Microsoft, NVIDIA, etc...
UTCP is a plug-in protocol that lets apps call tools the same way, whether they re HTTP APIs, CLIs, or other transports. Version 1.0.0 brings a lean core, protocol plugins, and a cleaner config so teams can scale tool usage without wrestling with glue code.