# apple/HomeKitADK

Repository: https://github.com/apple/HomeKitADK
Canonical: https://ross.abutalabs.com/products/homekitadk
Language: C
License: Apache-2.0
License Family: permissive
Archived: true
Last push: 2022-07-06T20:08:37+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2457, "days_push": 1519, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2622, forks 228 (observed 2026-08-28T04:07:05.108469+00:00)

## What it is
Apple's open-source HomeKit Accessory Development Kit implementing the HomeKit Accessory Protocol (HAP) in C. It lets developers prototype non-commercial HomeKit-compatible smart home accessories; commercial use requires Apple's MFi Program.

## Use cases
- build HomeKit-compatible smart home accessories
- prototype a HomeKit light bulb or sensor
- implement the HomeKit Accessory Protocol on embedded hardware
- test HomeKit device pairing and security
- integrate a custom device with Apple Home

## When to choose
- you are prototyping a non-commercial HomeKit accessory
- you are a silicon vendor evaluating HomeKit support
- you want a reference C implementation of HAP

## When to avoid
- you want to ship commercial HomeKit accessories (MFi license required)
- you need a smart home platform other than Apple HomeKit
- you need actively maintained code - the last release was 2022

## Facets
- artifact type: library
- maturity: maintenance
- function: sdk, security, cryptography, iot, embedded
- domain: iot, embedded-systems, hardware
- platform: embedded, iot, cross-platform, c
- tags: homekit, hap, smart-home, accessory-development, apple

## Member repositories
- apple/HomeKitADK (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:05.108469+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 2026-08-30T02:20:01.773044+00:00, confidence not recorded.
  - readme: https://github.com/apple/HomeKitADK (fetched 2026-08-28T04:07:05.108469+00:00, sha 5ae47a5764da)
- Data as of 2026-08-30T08:39:29.467469+00:00.