Changelog
What shipped and when.
v1.0.0, May 2026
Public launch.
- MicroVM sandboxes, fast cold-create on our optimized boot pipeline.
- Any OCI image, run any registry image (Docker Hub, GHCR, private). First use pulls and prepares it; every boot after is instant. How it works →
- Snapshot & restore, checkpoint a running VM and resume from the snapshot.
- Fork, clone a running sandbox into N children that inherit filesystem + memory state.
- Hibernate & resume, pause without paying for active runtime; resume preserves processes.
- Public URLs, expose any in-sandbox port at
https://<port>-<runID>.isorun.app/. - Network egress filtering, allow/deny lists per sandbox + named profiles (
unrestricted,locked-down,claude-code,openai, …). - Credential injection, host-side reverse proxy keeps API keys out of the guest's environment.
- File upload/download/list, via the runtime protocol.
- WebSocket terminal, full PTY with tab completion, vi, Ctrl-C.
- WebSocket shell, long-lived bash session, state persists across commands.
- SSE streaming exec, stream stdout/stderr in real time.
- Audit trail, tamper-evident NDJSON log of every sandbox event.
- TypeScript SDK,
npm install isorun, ESM-only, Node 20+. - Claude Managed Agents adapter,
isorun/claude-agents/orchestratorsub-export. - REST API, OpenAPI 3.1 spec, Bearer auth.
- Per-second billing, $0.025/vCPU-hr + $0.015/GiB-hr. $50 free credit on signup.