Rhys
2 Tools · 1 Intel
Rhys Sullivan is a San Francisco-based software engineer who holds a Bachelor of Science in Game Programming from Champlain College (2023). He previously worked at Raven Software, Microsoft, and Dosu before joining Vercel as a software engineer. He is now the founder of executor.sh, an open-source MCP gateway for connecting AI agents to APIs and services, which was accepted into Y Combinator's S26 batch.
Is this you? Sign in with X to claim this profile.
Tools
Registry of integration specs across MCP, OpenAPI, and GraphQL that AI agents use to discover and connect to services.
MCP gateway exposing many connected tools as one on-demand tool to keep agent prompts small.
Intel
A thread/article by Rhys Sullivan analyzing why MCP (Model Context Protocol) didn't gain traction when it launched alongside early models like Sonnet 3.5 and GPT-4o, and what comes next for agent-to-tool connectivity. Written by a YC-backed founder building infrastructure to connect AI agents to tools, APIs, and services.