Everything you need to ship AI work for review — and nothing else.
Capsule's surface is deliberately narrow: hosting, comments, revisions, and an agent-callable contract. No editor, no LLM lock-in, no review-platform sprawl.
Private share links
Every artifact your agent ships gets its own URL — passworded, time-limited, or fully public. Revoke at any time.
Element-anchored comments
Reviewers click any element on the page and leave a comment threaded against it. No more "the button on the third row, second from the left".
Revision history
Each capsule update keeps prior versions accessible. Reviewers see what changed; you see when each comment was raised.
In-review / accepted / iterate
Comments move through an explicit lifecycle. Your agent reads which comments are still open before each iteration.
MCP-native
Capsule installs as an MCP tool in your agent host. The agent calls capsule_upload, capsule_update, capsule_list_comments directly.
Sandbox-safe runtime
Hosted artifacts run in a sandboxed iframe with a storage shim, so self-contained HTML/JS apps Just Work without leaking origin state.
Ready to wire your agent up?
Capsule's MCP install is one command. Your agent reads the install doc and registers itself.