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Durable Actors
Durable Actors is an open-source alternative to Cloudflare Durable Objects providing stateful serverless functions in TypeScript and Python.
Durable Actors provides stateful serverless functions as a building block that abstracts away persistence, coordination, and infrastructure challenges in distributed systems. Users define an actor as a class with durable state and serialized execution, allowing data to survive interruptions and concurrent callers to update safely. The runtime loads actors on demand, persists fields marked with decorators, and automatically generates type-safe clients in Python and TypeScript. Developers can build real-time applications like chat systems, collaboration tools, and agent swarms. The platform supports local development and self-hosting on GCP.
Durable Actors at a glance
Key features
- Stateful serverless functions
- Durable state that survives interruptions
- Serialized execution for safe updates
- Automatic type-safe client generation
- Local development with one command
- Built-in observability features
Use it for
- Build real-time chat systems
- Create collaboration tools
- Coordinate agent swarms
Alternatives to Durable Actors
- Trigora — It uses Transparent Continuation Checkpointing instead of replaying prior history.
- Cloudflare Agents — Runs agents on a global network with durable storage and real-time connections.
- Durable Harness — Recovers sessions from logs after crashes and prevents duplicate tool calls.
- Agent — Find old conversations and continue existing tasks across connected machines.
- Open Multi-Agent — It enables self-hosted, audit-ready AI agents with offline verifiable records.
- Stagehand — It combines familiar APIs with self-healing actions and token efficiency for agents.
- Composio — Equips AI agents with tools, managed user auth, and sandboxes across 1,500+ apps
- PiDurableKit — Provides durable AI agents with crash recovery for Apple platforms.
- Lightpanda — Lower memory footprint and faster execution than Chrome for automated workflows.
- Webwright — Enables code-based web automation with reusable and rerunnable scripts.
- Astrid — It replaces prompt-based trust with OS-grade, capability-based security.
- Agent Executor — Declarative runtime for scaling stateful agent workloads with isolation.
All Durable Actors alternatives