# High Fidelity

**Canonical:** https://apis.io/providers/high-fidelity/  
**Website:** https://www.highfidelity.com  
**APIs profiled:** 1

High Fidelity provides live spatial audio technology for apps and games. Its Spatial Audio Client Library (hifi-spatial-audio, MIT) lets developers embed realistic positional voice — 3D azimuth/distance transforms, nearfield "whisper" audio, noise reduction, and many simultaneous speakers over the Opus codec — into web and native applications, and previously connected them to a hosted Spatial Audio API server via signed connection JWTs. Apps including Clubhouse, Hubbub, Breakroom, and Soundstage used the technology. The hosted API service has since been discontinued; the SDK remains open source, and the company's active product is Quad, a spatial social platform that recreates physical meeting spaces. High Fidelity was founded by Philip Rosedale and is a portfolio company of GV.

## Kin Score — 23.4 / 100 (emerging)

Scored 2026-08-30 under rubric 0.17.2. Trend: flat (+0.2 from 23.2).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 38.1 |
| Commercial Clarity | 31.6 |
| Access Clarity | 31.6 |

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| 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 |
| 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 (1)

- **High Fidelity Spatial Audio API** — Client SDK and hosted spatial audio server for embedding real-time positional voice in web and native apps. Auth is a connection JWT signed with the developer's App Secret. The ...

## Security (2)

- **High Fidelity Authentication** — jwt · 1 scheme
- **High Fidelity Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Consumer, Spatial Audio, Audio, Voice, WebRTC, SDK, Real-Time Communication, Gaming

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