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

4.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

Company Wearables Fitness Health IoT Consumer Hardware Defunct

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 4.0/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 0.0 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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)

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: '0.23'
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