Ultraleap

Ultraleap Limited (Bristol, UK) is the hand-tracking and mid-air haptics company formed in 2019 when Ultrahaptics acquired Leap Motion. It ships the Leap Motion Controller 2 and Stereo IR 170 / 3Di hand-tracking cameras, the Ultraleap Hand Tracking Software (Gemini V5, now Hyperion V6) with its native LeapC C API, first-party Unity and Unreal plugins, an implicit OpenXR API layer implementing XR_EXT_hand_tracking, Python bindings, a LeapJS-compatible tracking WebSocket server, and the TouchFree touchless interaction tooling for web and Unity. Its ultrasonic haptics SDK is supplied on request rather than published. The developer surface is a locally installed SDK and service, not a hosted HTTP API, so there is no OpenAPI or base URL. In 2025 the company announced it is joining ROLI, the music-technology company.

Ultraleap publishes 4 APIs on the APIs.io network. Tagged areas include Company, Hand Tracking, Computer-Vision, Spatial Computing, and Haptics.

Ultraleap’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, changelog, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

30.1/100 thin Agent 4/100 human only Full breakdown ↓
scored 2026-09-18 · rubric v0.22.0

4 APIs

CompanyHand TrackingComputer-Vision Spatial Computing Haptics Augmented Reality Virtual Reality XR Gesture Recognition OpenXR SDK Hardware Human-Computer Interaction

Kin Score

Kin Score How this is scored →
scored 2026-09-18 · rubric v0.22.0

Composite quality — 30.1/100 · thin

Contract Quality 1.7 / 25

Developer Ergonomics 10.5 / 20

Access Clarity 5.8 / 20

Operational Transparency 2.7 / 13

Contract Governance 2.2 / 12

Discoverability 7.2 / 10

Agent readiness — 4/100 · 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 8 / 8

Request/Response Examples 7 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

LeapC Tracking API

LeapC is the native C API of the Ultraleap Hand Tracking Software. A client opens a connection to the locally running tracking service and polls it for tracking frames (hands, p...

Ultraleap OpenXR API Layer

An implicit Khronos OpenXR API layer, installed with the Hand Tracking Software, that serves XR_EXT_hand_tracking, XR_EXT_hand_joints_motion_range, XR_EXT_hand_tracking_data_sou...

Ultraleap Tracking WebSocket

An open-source WebSocket server from Ultraleap that restores the LeapJS-compatible surface removed when Leap Motion Orion V4 was replaced by Ultraleap Gemini V5. It streams trac...

TouchFree Tooling

TouchFree turns Ultraleap hand tracking into touchless cursor and gesture input for kiosks, digital signage and existing 2D user interfaces. The TouchFree Service runs locally a...

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ultraleap Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

DataModel

Components

Conformance

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Compliance

Compliance

DomainSecurity

DomainSecurity

Operate 5

Status, limits, changes, and where to get help

IssueTracker

Support

Community

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

License

License

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Downloads

Downloads

Products

Products

Source (apis.yml)

aid: ultraleap
name: Ultraleap
description: Ultraleap Limited (Bristol, UK) is the hand-tracking and mid-air haptics company formed in 2019 when Ultrahaptics
  acquired Leap Motion. It ships the Leap Motion Controller 2 and Stereo IR 170 / 3Di hand-tracking cameras, the Ultraleap
  Hand Tracking Software (Gemini V5, now Hyperion V6) with its native LeapC C API, first-party Unity and Unreal plugins, an
  implicit OpenXR API layer implementing XR_EXT_hand_tracking, Python bindings, a LeapJS-compatible tracking WebSocket server,
  and the TouchFree touchless interaction tooling for web and Unity. Its ultrasonic haptics SDK is supplied on request rather
  than published. The developer surface is a locally installed SDK and service, not a hosted HTTP API, so there is no OpenAPI
  or base URL. In 2025 the company announced it is joining ROLI, the music-technology company.
image: https://avatars.githubusercontent.com/u/51484212?v=4
url: https://raw.githubusercontent.com/api-evangelist/ultraleap/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-09-18'
modified: '2026-09-18'
tags:
- Company
- Hand Tracking
- Computer-Vision
- Spatial Computing
- Haptics
- Augmented Reality
- Virtual Reality
- XR
- Gesture Recognition
- OpenXR
- SDK
- Hardware
- Human-Computer Interaction
tags_raw:
- Company
- Hand Tracking
- Computer Vision
- Spatial Computing
- Haptics
- Augmented Reality
- Virtual Reality
- XR
- Gesture Recognition
- OpenXR
- SDK
- Hardware
- Human Computer Interaction
apis:
- aid: ultraleap:leapc-tracking-api
  name: LeapC Tracking API
  description: LeapC is the native C API of the Ultraleap Hand Tracking Software. A client opens a connection to the locally
    running tracking service and polls it for tracking frames (hands, palms, digits, bones), device events, image frames,
    policy and configuration responses, plus the Hyperion V6 hinting, marker-tracking and direct-camera-access surfaces. It
    is the layer the Unity, Unreal, OpenXR and Python bindings are built on. There is no hosted HTTP base URL; the transport
    is local IPC to the tracking service.
  humanURL: https://docs.ultraleap.com/api-reference/tracking-api/index.html
  tags:
  - Hand Tracking
  - Native API
  - C
  properties:
  - type: Documentation
    url: https://docs.ultraleap.com/api-reference/tracking-api/leapc-guide.html
  - type: APIReference
    url: https://docs.ultraleap.com/api-reference/tracking-api/api-reference.html
  - type: Examples
    url: https://docs.ultraleap.com/api-reference/tracking-api/examples.html
  - type: ReleaseNotes
    url: https://docs.ultraleap.com/hand-tracking/Hyperion/index.html
- aid: ultraleap:openxr-api-layer
  name: Ultraleap OpenXR API Layer
  description: An implicit Khronos OpenXR API layer, installed with the Hand Tracking Software, that serves XR_EXT_hand_tracking,
    XR_EXT_hand_joints_motion_range, XR_EXT_hand_tracking_data_source, XR_MSFT_hand_interaction, XR_ULTRALEAP_hand_tracking_forearm,
    XR_ULTRALEAP_hand_tracking_hints and XR_FB_hand_tracking_aim to any OpenXR application without code changes.
  humanURL: https://docs.ultraleap.com/openxr/index.html
  tags:
  - OpenXR
  - Hand Tracking
  - XR
  properties:
  - type: Documentation
    url: https://docs.ultraleap.com/openxr/index.html
  - type: ChangeLog
    url: https://docs.ultraleap.com/openxr/changelog/index.html
  - type: SourceCode
    url: https://github.com/ultraleap/OpenXRHandTracking
- aid: ultraleap:tracking-websocket
  name: Ultraleap Tracking WebSocket
  description: An open-source WebSocket server from Ultraleap that restores the LeapJS-compatible surface removed when Leap
    Motion Orion V4 was replaced by Ultraleap Gemini V5. It streams tracking data over the legacy LeapJS v6 JSON protocol
    so browser applications can consume hand tracking. It runs locally alongside the tracking service; the endpoint is a loopback
    WebSocket, not a hosted API.
  humanURL: https://github.com/ultraleap/UltraleapTrackingWebSocket
  tags:
  - WebSocket
  - Streaming
  - Browser
  properties:
  - type: SourceCode
    url: https://github.com/ultraleap/UltraleapTrackingWebSocket
  - type: Documentation
    url: https://github.com/ultraleap/UltraleapTrackingWebSocket/blob/main/README.md
- aid: ultraleap:touchfree-tooling
  name: TouchFree Tooling
  description: TouchFree turns Ultraleap hand tracking into touchless cursor and gesture input for kiosks, digital signage
    and existing 2D user interfaces. The TouchFree Service runs locally and the Tooling for Web (TypeScript) and Tooling for
    Unity client libraries connect to it to receive input actions and drive UI components.
  humanURL: https://docs.ultraleap.com/TouchFree/touchfree-user-manual/index.html
  tags:
  - Touchless Interaction
  - Kiosk
  - Web
  - Unity
  properties:
  - type: Documentation
    url: https://docs.ultraleap.com/TouchFree/touchfree-user-manual/tooling-for-web.html
  - type: SourceCode
    url: https://github.com/ultraleap/TouchFreeWebTooling
  - type: Components
    url: components/ultraleap-components.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: IssueTracker
  url: https://github.com/ultraleap/UltraleapTrackingWebSocket/issues
- type: ErrorCatalog
  url: errors/ultraleap-error-codes.yml
- type: Conventions
  url: conventions/ultraleap-conventions.yml
- type: DataModel
  url: data-model/ultraleap-data-model.yml
- type: Website
  url: https://www.ultraleap.com/
- type: DeveloperPortal
  url: https://docs.ultraleap.com/
- type: Documentation
  url: https://docs.ultraleap.com/hand-tracking/index.html
- type: APIReference
  url: https://docs.ultraleap.com/api-reference/tracking-api/index.html
- type: GettingStarted
  url: https://docs.ultraleap.com/hand-tracking/getting-started.html
- type: Downloads
  url: https://www.ultraleap.com/downloads/
- type: Products
  url: https://www.ultraleap.com/products/
- type: Blog
  url: https://docs.ultraleap.com/ultralab/index.html
- type: GitHubOrganization
  url: https://github.com/ultraleap
- type: Support
  url: https://www.ultraleap.com/contact/
- type: Community
  url: https://discord.com/invite/3VCndThqxS
- type: TermsOfService
  url: https://www.ultraleap.com/legal/ultraleap-ltd-terms-conditions-of-business/
- type: PrivacyPolicy
  url: https://www.ultraleap.com/legal/privacy-policy/
- type: License
  url: https://www.ultraleap.com/legal/enterprise-tracking-licence/
- type: ChangeLog
  url: https://docs.ultraleap.com/openxr/changelog/index.html
- type: ChangeLog
  url: changelog/ultraleap-changelog.yml
- type: Packages
  url: packages/ultraleap-packages.yml
- type: SDKs
  url: packages/ultraleap-packages.yml
- type: Components
  url: components/ultraleap-components.yml
- type: Conformance
  url: conformance/ultraleap-conformance.yml
- type: Compliance
  url: conformance/ultraleap-conformance.yml
- type: Lifecycle
  url: lifecycle/ultraleap-lifecycle.yml
- type: LLMsTxt
  url: llms/ultraleap-llms.txt
- type: DomainSecurity
  url: security/ultraleap-domain-security.yml
x-enrichment:
  date: '2026-09-18'
  status: enriched
  artifacts_added: 8
  pass: local-v3

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