Launch HN: Coasty (YC S26) – An API for computer-use agents
Summary
Coasty offers an API-driven platform for autonomous task execution on managed machines, enabling task runs, workflows, and BYOK usage for LLMs. The API reference enumerates authentication, runs, streaming events, human takeover, webhooks, workflows, sessions, grounding, parse, and a rich set of primitives and actions, along with provisioning and lifecycle management for machines. The documentation also details pricing, safety, and error handling to support programmable automation at scale.