Hammerhead

Hammerhead is a cycling technology company (now part of SRAM) best known for the Karoo GPS cycling computer, a premium Android-based device for recording and displaying ride data, routes, structured workouts, and Flight Attendant performance. Its ecosystem includes the web Dashboard (dashboard.hammerhead.io) and a Companion mobile app that bridge ride data between rider, device, and third parties. Hammerhead runs one of the more open developer platforms in the category: a public API that lets connected third parties sync routes and workouts, and the karoo-ext Android/Kotlin Extensions SDK (io.hammerhead:karoo-ext, Apache-2.0) that lets developers build on-device extensions for Karoo and Karoo 2.

Hammerhead is profiled on the APIs.io network. Tagged areas include Company, Cycling, GPS Cycling Computer, Sports Technology, and Wearables.

Hammerhead’s developer surface includes documentation, getting-started guide, engineering blog, signup flow, changelog, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

24.6/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyCyclingGPS Cycling ComputerSports TechnologyWearablesAndroid SDKDeveloper PlatformNavigationHardware

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 24.6/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 8.3 / 20

Commercial Clarity 6.8 / 20

Operational Transparency 2.7 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 4/100 · 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 4 / 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/hammerhead: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

HelpCenter

HelpCenter

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: hammerhead
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/hammerhead.png
name: Hammerhead
description: 'Hammerhead is a cycling technology company (now part of SRAM) best known for the Karoo GPS cycling computer,
  a premium Android-based device for recording and displaying ride data, routes, structured workouts, and Flight Attendant
  performance. Its ecosystem includes the web Dashboard (dashboard.hammerhead.io) and a Companion mobile app that bridge ride
  data between rider, device, and third parties. Hammerhead runs one of the more open developer platforms in the category:
  a public API that lets connected third parties sync routes and workouts, and the karoo-ext Android/Kotlin Extensions SDK
  (io.hammerhead:karoo-ext, Apache-2.0) that lets developers build on-device extensions for Karoo and Karoo 2.'
url: https://raw.githubusercontent.com/api-evangelist/hammerhead/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Cycling
- GPS Cycling Computer
- Sports Technology
- Wearables
- Android SDK
- Developer Platform
- Navigation
- Hardware
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://hammerhead.io/
- type: DeveloperPortal
  url: https://shop.sram.com/pages/hammerhead-developer-platform
- type: Documentation
  url: https://hammerheadnav.github.io/karoo-ext/index.html
- type: GettingStarted
  url: https://support.hammerhead.io/hc/en-us/articles/31150180125083-FAQ-Hammerhead-Extensions
- type: GitHubOrganization
  url: https://github.com/hammerheadnav
- type: HelpCenter
  url: https://support.hammerhead.io/hc/en-us
- type: Blog
  url: https://www.hammerhead.io/blogs/change-logs
- type: SignUp
  url: https://dashboard.hammerhead.io/
- type: TermsOfService
  url: https://www.sram.com/en/company/legal
- type: PrivacyPolicy
  url: https://www.sram.com/en/company/legal
- type: Packages
  url: packages/hammerhead-packages.yml
- type: SDKs
  url: packages/hammerhead-packages.yml
- type: ChangeLog
  url: changelog/hammerhead-changelog.yml
- type: WellKnown
  url: well-known/hammerhead-well-known.yml
- type: DomainSecurity
  url: security/hammerhead-domain-security.yml
- type: LLMsTxt
  url: llms/hammerhead-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence