Castari
Castari is a YC Fall 2025 (F25) company. Team of 3.
About Castari
Summary
Castari builds deployment and runtime infrastructure for AI agents, letting developers ship agents to isolated, autoscaling cloud sandboxes in a single command. It handles MCP tool connectors, environment isolation, logging, and observability, replacing weeks of custom infrastructure work. The target customer is a developer team moving an AI agent from prototype to production.
Go-to-market
Developer teams in B2B adopt Castari self-serve via a CLI tool and a cloud dashboard, importing existing agent projects from GitHub or generating new ones from templates.
From the Y Combinator listing
Vercel for AI Agents – Deploy sandboxed agents with MCP tools & skills
Castari lets developers deploy AI agents in secure, autoscaling sandboxes with one command. We handle tool/MCP connectors, snapshots, and observability so teams go from prototype to production in hours instead of weeks. Developers focus on building agents, Castari provides the autoscaling sandbox infrastructure to ensure your agents and its tools are secure.
Facts
- B2B / B2B -> Infrastructure
- 3
- Active
- Early
Founders (1)
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