# rivet-dev/actors

Rivet Actors are the primitive for stateful workloads. Built for AI agents, collaborative apps, and durable execution.

Repository: https://github.com/rivet-dev/actors
Canonical: https://ross.abutalabs.com/products/actors
Homepage: https://www.rivet.dev
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: multiplayer, rust, actor, actors, cloudflare-durable-objects, durable-objects, foundationdb, realtime, serverless, cloudflare
Last push: 2026-08-26T07:38:07+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 95, longevity 83
- inputs: {"age_days": 1174, "days_push": 7, "days_rel": 38, "gap_med": 1, "n_releases_24m": 46}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6088, forks 232 (observed 2026-08-28T04:09:34.944499+00:00)

## What it is
Rivet Actors is an open-source framework (RivetKit) providing long-running, stateful actor processes as the primitive for AI agents, collaborative apps, and durable execution. It bundles in-memory state with persistence, WebSockets for realtime streaming, durable queues, workflows, and scheduling, with scale-to-zero deployment on Rivet Cloud or self-hosted infrastructure.

## Use cases
- build ai agents with persistent memory and streaming responses
- run one durable process per user or session
- build realtime collaborative apps like chat and multiplayer
- run durable multi-step workflows that survive restarts
- process background jobs with durable queues
- schedule cron jobs and timers inside stateful backends
- self-host durable objects infrastructure like cloudflare durable objects
- scale stateful workloads to zero when idle

## When to choose
- you need stateful, long-lived backend processes with in-memory speed and automatic persistence
- you are building AI agents that need memory, queues, and realtime streaming in one primitive
- you want durable-objects-style actors without being locked to Cloudflare
- you need scale-to-zero economics for bursty, per-user workloads

## When to avoid
- you only need stateless request/response APIs with no shared state
- you want a simple managed message queue without compute co-location
- your team cannot adopt an actor-model programming model
- you need mature, battle-tested tooling over a newer framework

## Facets
- artifact type: framework
- maturity: active
- function: agent-framework, websocket, message-queue, scheduling, state-management, workflow-automation, rpc, http-server, sdk
- domain: large-language-models, backend, microservices, web-development, developer-tools, self-hosted
- platform: bun, rust, cloud, self-hosted, cross-platform
- tags: actors, durable-execution, durable-objects, stateful-workloads, realtime, multiplayer, serverless, edge-computing, cloudflare-workers, foundationdb, agent-orchestration, rivetkit, ai-agents, real-time, nodejs, docker, kubernetes, web-server

## Member repositories
- rivet-dev/actors (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:34.944499+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:48:18.359362+00:00, confidence not recorded.
  - readme: https://github.com/rivet-dev/actors (fetched 2026-08-28T04:09:34.944499+00:00, sha 9c9c6813933d)
  - homepage: https://www.rivet.dev (fetched 2026-08-29T08:45:03.266809+00:00, sha 3fd70158b559)
  - site_page: https://rivet.dev/docs (fetched 2026-08-29T08:45:03.270321+00:00, sha 7f69d0d66590)
  - site_page: https://rivet.dev/actors/docs/lifecycle (fetched 2026-08-29T08:45:03.275186+00:00, sha 910b05b84563)
  - site_page: https://rivet.dev/actors/docs/events (fetched 2026-08-29T08:45:03.278140+00:00, sha c02d07e64d95)
  - site_page: https://rivet.dev/actors/docs/state (fetched 2026-08-29T08:45:03.280923+00:00, sha 7f95c3f4d876)
  - site_page: https://rivet.dev/agentos/docs/processes (fetched 2026-08-29T08:45:03.284380+00:00, sha 8737e1eff93b)
  - site_page: https://rivet.dev/agentos/docs/filesystem (fetched 2026-08-29T08:45:03.286674+00:00, sha 6fdb2fc8c63a)
  - site_page: https://rivet.dev/agentos/docs/security-model (fetched 2026-08-29T08:45:03.288922+00:00, sha 8c5ef4f0fb1a)
  - site_page: https://rivet.dev/cloud (fetched 2026-08-29T08:45:03.272697+00:00, sha 27b3b0b1ec74)
- Data as of 2026-08-30T08:39:29.467469+00:00.