Nuance Labs

Nuance Labs is an early-stage AI research company based in Seattle, Washington, building a human foundation model with emotional intelligence. It is developing a real-time, full-duplex audiovisual system that sees, hears, reasons, speaks, and expresses simultaneously, reading tone, facial expression, and hesitation to enable face-to-face AI interaction that feels human. Backed by Accel and Lightspeed Venture Partners, the company is pre-product: as of this enrichment pass it publishes only a marketing site (About, Press, Contact, Careers) with a "Get Demo" / early-access call to action, and exposes no public API, developer portal, documentation, SDKs, or other developer surface.

Nuance Labs is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Foundation Models, Emotional Intelligence, and Conversational AI.

🌐 Visit website 📡 Profile data on GitHub

3.8/100 minimal ▬ flat Agent 0/100 human only Front door AI 5/6 prominent Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Company Artificial Intelligence Foundation Models Emotional Intelligence Conversational AI Multi-Modal Real-Time Seattle

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 3.8/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.8 / 9

Regulatory Posture 0.8 / 15

Agent readiness — 0/100 · 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 0 / 8

Request/Response Examples 0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/nuance-labs/apis.yml: open an issue on github.com/api-evangelist/nuance-labs to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

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

Nuance Labs Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Company 6

The organization behind the API

Website

About

Press

Careers

LinkedIn

Twitter

Twitter

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: nuance-labs
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: none
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nuance-labs.png
name: Nuance Labs
x-parent: microsoft
description: 'Nuance Labs is an early-stage AI research company based in Seattle, Washington, building a human foundation
  model with emotional intelligence. It is developing a real-time, full-duplex audiovisual system that sees, hears, reasons,
  speaks, and expresses simultaneously, reading tone, facial expression, and hesitation to enable face-to-face AI interaction
  that feels human. Backed by Accel and Lightspeed Venture Partners, the company is pre-product: as of this enrichment pass
  it publishes only a marketing site (About, Press, Contact, Careers) with a "Get Demo" / early-access call to action, and
  exposes no public API, developer portal, documentation, SDKs, or other developer surface.'
url: https://www.nuancelabs.ai/
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
- lightspeed-venture-partners
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-05 (local-v6; was portfolio-lead)
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-11-05'
tags:
- Company
- Artificial Intelligence
- Foundation Models
- Emotional Intelligence
- Conversational AI
- Multi-Modal
- Real-Time
- Seattle
tags_raw:
- Company
- Ai
- Artificial Intelligence
- Foundation Model
- Emotional Intelligence
- Conversational AI
- Multimodal
- Real-Time
- Seattle
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Hosts
  url: hosts/nuance-labs-hosts.yml
- type: DomainSecurity
  url: security/nuance-labs-domain-security.yml
- type: Website
  url: https://www.nuancelabs.ai/
- type: About
  url: https://www.nuancelabs.ai/about
- type: Press
  url: https://www.nuancelabs.ai/press
- type: Contact
  url: https://www.nuancelabs.ai/contact
- type: Careers
  url: https://www.nuancelabs.ai/careers
- type: LinkedIn
  url: https://www.linkedin.com/company/nuance-labs-ai/
- type: Twitter
  url: https://x.com/nuance_ai
apis: []
x-enrichment:
  date: '2026-11-05'
  status: minimal
  artifacts_added: 1
  pass: local-v6
x-coverage:
  state: none
  reason: no-developer-program
  detail: 'Nuance Labs is pre-product: www.nuancelabs.ai is a marketing site with a Get Demo call to action, app.nuancelabs.ai
    and api.nuancelabs.ai answer 404 at their roots, and no docs, llms.txt, spec or package was found.'
  evidence:
  - url: https://www.nuancelabs.ai/
    status: 200
  - url: https://api.nuancelabs.ai/
    status: 404
  - url: https://app.nuancelabs.ai/
    status: 404
  - url: https://www.nuancelabs.ai/llms.txt
    status: 404
  checked: '2026-11-05'

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