Rhys
1 Tool · 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.
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Tools
integrations.sh is a comprehensive registry of 5,758 integration specs across MCP, OpenAPI, and GraphQL formats, covering 3,230+ domains. It lets AI agents discover and connect to any tool, API, or service with structured credential facts. Think of it as a universal phonebook for agents to reach services like Slack, Stripe, Notion, and thousands more.
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.