# Urban Sky

**Canonical:** https://apis.io/providers/urban-sky/  
**Website:** https://urbansky.com/  
**APIs profiled:** 1

Urban Sky is a Denver-based aerospace company, founded in 2016, that designs and operates reusable stratospheric microballoons for high-altitude remote sensing, persistent aerial surveillance, communications relay, and atmospheric data collection. Its balloons launch in under five minutes, float at 61,000-75,000 feet for multi-day missions, and carry the modular Wallabee payload platform with RGB, VNIR, and LWIR thermal sensors delivering 10cm-resolution imagery with real-time downlink. Through its Atmosys software platform, Urban Sky publishes an SDK for developers (JavaScript and Python, delivered via CDN loader) that streams real-time balloon telemetry over WebSocket and provides mission imagery access, serving defense and intelligence, commercial monitoring, and science and weather markets. Urban Sky is a Techstars portfolio company.

## Kin Score — 34.4 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 34.4).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 45.1 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 54.8 |
| Commercial Clarity | 21.1 |
| Access Clarity | 21.1 |

## Agent readiness — 32.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | derived |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **Urban Sky SDK (Real-time Balloon Telemetry)** — Real-time balloon telemetry feed delivered over WebSocket via the Urban Sky SDK (JavaScript and Python, distributed by CDN loader from sdk.atmosys.com), with balloon and unassig...

## Security (2)

- **Urban Sky Authentication** — apiKey · 1 scheme
- **Urban Sky Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Aerospace, Stratospheric Balloons, Remote Sensing, Earth Observation, Aerial Imagery, Telemetry, Defense, Weather

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