# Leap Motion

**Canonical:** https://apis.io/providers/leap-motion/  
**Website:** https://www.ultraleap.com/  
**APIs profiled:** 2

Leap Motion is the hand-tracking company behind the Leap Motion Controller. It merged with Ultrahaptics in 2019 to form Ultraleap, and the Leap Motion brand now continues as Ultraleap's hardware line (Leap Motion Controller 2) and as the "Leap" naming across the tracking SDK. The developer surface is not a hosted web API: it is LeapC, a native C API that connects a local client to the Ultraleap Hand Tracking Service and delivers tracked hands, digits, bones, images and device events as polled messages, plus first-party plugins for Unity, Unreal, OpenXR and Python. The original leapmotion.com and developer.leapmotion.com domains no longer resolve; docs.ultraleap.com and github.com/ultraleap are the live developer surfaces.

## Kin Score — 27.5 / 100 (thin)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.0 from 27.5).

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 6.7 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 52.4 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

## Agent readiness — 4.1 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | documented |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (2)

- **LeapC Tracking API** — LeapC is the native C API for Ultraleap / Leap Motion hand tracking. A client opens a LEAP_CONNECTION to the locally running Ultraleap Hand Tracking Service and drives a message...
- **Ultraleap Tracking WebSocket** — An open-source WebSocket server from Ultraleap that restores the LeapJS-compatible websocket surface removed when Leap Motion Orion V4 was replaced by Ultraleap Gemini V5. It st...

## Security (1)

- **Leap Motion Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Hand Tracking, Computer-Vision, Spatial Computing, Augmented Reality, Virtual Reality, XR, Gesture Recognition, SDK, Hardware, Human Computer Interaction, OpenXR

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/leap-motion/). Scores are computed from the provider's own public artifacts under a published rubric.