# Hidden Level

**Canonical:** https://apis.io/providers/hidden-level/  
**Website:** https://hiddenlevel.com  
**APIs profiled:** 0

Hidden Level is a U.S.-based defense and aerospace technology company that turns radio-frequency (RF) activity into trusted airspace intelligence. Its passive RF sensing platform detects and tracks unmanned aerial systems (drones) and other activity across air, ground, sea, and space domains without requiring emitters or heavy on-site infrastructure. Hidden Level packages this as hardware sensor platforms, software platforms, and data platforms serving defense and military, critical infrastructure protection, homeland security, and public safety customers. The company hosts its platform on AWS with least-privilege access, MFA, and TLS 1.3 API communications, aligns corporate controls to NIST SP 800-171, and emphasizes U.S. design and manufacturing. Backed by Costanoa Ventures. This API Evangelist profile tracks Hidden Level's public web and security surface; the company does not currently publish a public developer portal, API reference, or SDKs.

## Kin Score — 11.7 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 11.7).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 26.3 |
| Access Clarity | 26.3 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| 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 |

## Access

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

## Security (2)

- **Hidden Level Domain Security** — TLSv1.3 · HSTS · DMARC
- **Hidden Level Trust Center** — FIPS 140, FIPS 186-5, NIST SP 800-171, TLS 1.3

## Tags

Company, Defense, Aerospace, Airspace Awareness, Counter-UAS, Drone Detection, RF Sensing, Critical Infrastructure, Public Safety, Security

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