# contiki-os/contiki

The official git repository for Contiki, the open source OS for the Internet of Things

Repository: https://github.com/contiki-os/contiki
Canonical: https://ross.abutalabs.com/products/contiki
Homepage: http://www.contiki-os.org/
Language: C
License: NOASSERTION
License Family: other
Last push: 2024-04-06T04:09:05+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5061, "days_push": 879, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3805, forks 2570 (observed 2026-08-28T04:08:20.235685+00:00)

## What it is
Contiki is an open source operating system for tiny low-power microcontrollers, providing standardized low-power wireless communication across hardware platforms. This is the historical official git repository; active development has moved to Contiki-NG.

## Use cases
- build IoT applications on low-power microcontrollers
- run IPv6 networking on constrained embedded devices
- develop wireless sensor network firmware
- prototype networked embedded systems
- implement low-power wireless communication protocols

## When to choose
- you need an OS for tiny low-power IoT hardware
- you want standardized low-power wireless networking in C
- you're maintaining legacy Contiki-based systems

## When to avoid
- you're starting a new IoT project - use Contiki-NG instead
- you need an OS for powerful hardware like Linux-class devices
- you want a non-C development environment

## Facets
- artifact type: application
- maturity: maintenance
- function: embedded, networking, iot
- domain: iot, embedded-systems, operating-systems, networking
- platform: embedded, iot, c
- tags: operating-system, low-power, wireless, microcontrollers, 6lowpan, ipv6

## Member repositories
- contiki-os/contiki (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:20.235685+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 2026-08-29T18:26:47.028402+00:00, confidence not recorded.
  - readme: https://github.com/contiki-os/contiki (fetched 2026-08-28T04:08:20.235685+00:00, sha ceadc49833e0)
  - homepage: http://www.contiki-os.org/ (fetched 2026-08-29T09:21:36.548751+00:00, sha df1a8951ca18)
- Data as of 2026-08-30T08:39:29.467469+00:00.