aid: halo-collar
name: Halo Collar
description: 'Halo Collar is the consumer GPS dog-fence and dog-tracking product built by
  Protect Animals With Satellites LLC (d/b/a Halo), founded in 2017 by Ken Ehrman, Michael
  Ehrman and dog behaviorist Cesar Millan. The product pairs a cellular- and GPS-connected
  smart collar (currently Halo Collar 5, with Halo Collar 4 still sold) with a companion
  iOS/Android app that lets an owner draw virtual GPS fences, watch real-time location,
  trigger Cesar Millan-designed training feedback, and read activity reports. The service
  runs on a required Pack Membership subscription in Bronze, Silver and Gold tiers that
  carries unlimited cellular data, an increasing virtual-fence allowance, accessory
  discounts and third-party partner perks. Halo publishes no public developer program: the
  app is served by a first-party, undocumented backend at api.halocollar.com (an ASP.NET
  service that self-identifies as Halo.Web.Api), and there is no developer portal, API
  reference, OpenAPI/AsyncAPI/GraphQL contract, SDK or webhook surface anywhere on the
  company''s public web properties.'
image: https://d252xzqwj6utz.cloudfront.net/static/owls-home/halo-logo-light.svg
url: https://raw.githubusercontent.com/api-evangelist/halo-collar/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-secondary-market-listing: https://forgeglobal.com/halo-collar_stock/
x-legal-entity: Protect Animals With Satellites LLC (d/b/a Halo)
x-tier: profile
x-tier-reason: no-api-surface
specificationVersion: '0.23'
created: '2026-08-22'
modified: '2026-08-22'
tags:
- Company
- Pet Tech
- Consumer IoT
- GPS Tracking
- Geofencing
- Wearables
- Connected Devices
- Mobile Apps
- Subscription Service
- Consumer Hardware
tags_raw:
- Company
- Pet Tech
- Consumer IoT
- GPS Tracking
- Geofencing
- Wearables
- Connected Devices
- Mobile Apps
- Subscription Service
- Consumer Hardware
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/halo-collar-domain-security.yml
- type: Website
  url: https://www.halocollar.com/
- type: About
  url: https://www.halocollar.com/about/
- type: Support
  url: https://support.halocollar.com/hc/en-us
- type: FAQ
  url: https://www.halocollar.com/faq/
- type: Blog
  url: https://www.halocollar.com/blog/
- type: PressReleases
  url: https://www.halocollar.com/press/
- type: Careers
  url: https://www.halocollar.com/careers/
- type: Pricing
  url: https://www.halocollar.com/plans/
- type: SignUp
  url: https://www.halocollar.com/signup/
- type: Login
  url: https://www.halocollar.com/login/
- type: TermsOfService
  url: https://www.halocollar.com/unified-terms-and-conditions/
- type: PrivacyPolicy
  url: https://www.halocollar.com/privacy-notice/
- type: LinkedIn
  url: https://www.linkedin.com/company/halocollar
- type: Instagram
  url: https://www.instagram.com/halocollar
- type: YouTube
  url: https://www.youtube.com/@halocollar
- type: TikTok
  url: https://www.tiktok.com/@halocollar
- type: iOSApp
  url: https://apps.apple.com/us/app/halo-collar/id1476830649
- type: AndroidApp
  url: https://play.google.com/store/apps/details?id=com.paws.haloapp
- type: Investors
  url: https://forgeglobal.com/halo-collar_stock/
- type: LLMsTxt
  url: llms/halo-collar-llms.txt
- type: Packages
  url: packages/halo-collar-packages.yml
- type: Plans
  url: plans/halo-collar-plans-pricing.yml
- type: RateLimits
  url: rate-limits/halo-collar-rate-limits.yml
x-enrichment:
  date: '2026-08-22'
  status: minimal
  artifacts_added: 6
  pass: local-v1
x-coverage:
  state: none
  reason: no-developer-program
  detail: >-
    Halo sells an end-user GPS dog collar and app: its only API host, api.halocollar.com,
    is the private ASP.NET backend for the mobile app (it answers 200 with a
    "Halo.Web.Api" service banner and a JSON 404 envelope on every other path), and there
    is no developer portal, no API reference, no SDK and no docs./developer. host in DNS
    at all.
  evidence:
  - url: https://api.halocollar.com/
    status: 200
  - url: https://api.halocollar.com/openapi.json
    status: 404
  - url: https://api.halocollar.com/swagger/v1/swagger.json
    status: 404
  - url: https://api.halocollar.com/graphql
    status: 404
  - url: https://developer.halocollar.com/
    status: 0
  - url: https://www.halocollar.com/llms.txt
    status: 404
  - url: https://www.halocollar.com/.well-known/agent-card.json
    status: 404
  - url: https://halo-api.agents.halocollar.com/.well-known/agent-card.json
    status: 0
  checked: '2026-08-22'