# nactio/nact

nact ⇒ node.js + actors ⇒ your services have never been so µ

Repository: https://github.com/nactio/nact
Canonical: https://ross.abutalabs.com/products/nact
Homepage: https://nact.xyz
Language: TypeScript
License: Apache-2.0
License Family: permissive
Topics: actor-model, nodejs, actorsystem, actors, distributed-systems, akka, microservices, nact
Last push: 2023-03-05T21:41:26+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3306, "days_push": 1277, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1146, forks 44 (observed 2026-08-28T04:03:45.878158+00:00)

## What it is
Nact is a Node.js/TypeScript framework implementing the actor model, inspired by Akka and Erlang, for building resilient, stateful server applications. It provides actor systems with out-of-the-box event sourcing support for managing state and reducing coupling in services.

## Use cases
- build actor-based services in node.js
- implement event sourcing in javascript
- manage stateful concurrent services without locks
- model microservices with message passing
- replace redux-style state management on the server
- build resilient distributed systems in typescript

## When to choose
- you want Akka/Erlang-style actors in the Node.js ecosystem
- you need event sourcing with an actor model
- you want lightweight stateful concurrency without thread management

## When to avoid
- you need location transparency or cluster distribution today
- you need a framework with frequent releases and active development
- you're targeting environments other than Node.js 8+

## Facets
- artifact type: framework
- maturity: maintenance
- function: concurrency, microservices, state-management, workflow-automation
- domain: microservices, backend, developer-tools
- platform: -
- tags: actor-model, event-sourcing, akka-inspired, erlang-inspired, message-passing, nodejs, javascript, typescript

## Member repositories
- nactio/nact (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:45.878158+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 2026-08-30T06:34:11.526498+00:00, confidence not recorded.
  - readme: https://github.com/nactio/nact (fetched 2026-08-28T04:03:45.878158+00:00, sha 13fc23996846)
  - homepage: https://nact.xyz (fetched 2026-08-29T12:39:41.537808+00:00, sha d6165f20edf1)
- Data as of 2026-08-30T08:39:29.467469+00:00.