Misfit

Misfit is a consumer wearables brand — fitness trackers and smartwatches such as the Misfit Shine, Flash, Ray and Vapor — founded in 2011 by Sonny Vu, John Sculley and Sridhar Iyengar and backed by Norwest Venture Partners, Khosla Ventures, Founders Fund, GGV Capital and Xiaomi before being acquired by Fossil Group in 2015. Misfit ran a developer program (the Misfit Cloud API, Device SDK and Scientific Library) at build.misfit.com with 30+ launch partners. Fossil discontinued the Misfit backend, Cloud API and companion app in spring 2023, so the hosted API and all misfit.com domains are now unreachable. The only surviving developer surface is the official Misfit-Developers GitHub organization and its unmaintained iOS SDKs on CocoaPods.

Misfit is profiled on the APIs.io network. Tagged areas include Company, Wearables, Fitness, Health, and IoT.

🌐 Visit website 📡 Source on GitHub
7.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyWearablesFitnessHealthIoTConsumer HardwareDefunct

Kin Score

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scored 2026-07-27 · rubric v0.5
Composite quality — 7.4/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/misfit: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 SDKs
SDKs
 Packages
Packages

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: misfit
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/misfit.png
name: Misfit
description: Misfit is a consumer wearables brand — fitness trackers and smartwatches such as the Misfit Shine, Flash, Ray
  and Vapor — founded in 2011 by Sonny Vu, John Sculley and Sridhar Iyengar and backed by Norwest Venture Partners, Khosla
  Ventures, Founders Fund, GGV Capital and Xiaomi before being acquired by Fossil Group in 2015. Misfit ran a developer program
  (the Misfit Cloud API, Device SDK and Scientific Library) at build.misfit.com with 30+ launch partners. Fossil discontinued
  the Misfit backend, Cloud API and companion app in spring 2023, so the hosted API and all misfit.com domains are now unreachable.
  The only surviving developer surface is the official Misfit-Developers GitHub organization and its unmaintained iOS SDKs
  on CocoaPods.
url: https://raw.githubusercontent.com/api-evangelist/misfit/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- norwest-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct-api
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Wearables
- Fitness
- Health
- IoT
- Consumer Hardware
- Defunct
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://misfit.com
- type: GitHubOrganization
  url: https://github.com/Misfit-Developers
- type: SDKs
  url: packages/misfit-packages.yml
- type: Packages
  url: packages/misfit-packages.yml
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 1
  pass: local-v1