Density

Density builds radar-based occupancy sensors and a workplace analytics platform that measures how people use physical space without cameras or personally identifiable information. Its v3 Public API (api.density.io) exposes real-time occupancy and presence, historical metrics (occupancy, utilization, time used, sessions, raw sessions), spaces / doorways / sensors / labels resources, sensor and space health, wayfinding display tokens, and WebSocket streams for live floor presence and space occupancy. Authentication is OAuth 2.0 client-credentials (Auth0-backed) or static Bearer API tokens. Originally surfaced as a portfolio company of kleiner-perkins and enriched from Density's public developer surface.

Density is listed with 1 API on the APIs.io network. Tagged areas include Company, Enterprise, Occupancy Sensors, Workplace Analytics, and Real-Time.

The Density catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Density’s developer surface includes engineering blog, documentation, API reference, getting-started guide, support, signup flow, pricing, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

51.4/100 developing ▲ 7.9 Agent 23/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

AccessSelf serve

1 API

Company EnterpriseOccupancy SensorsWorkplace Analytics Real-Time Occupancy Sensors IoT Space Utilization PropTech

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 51.4/100 · developing

Contract Quality 8.3 / 21

Developer Ergonomics 9.7 / 17

Access Clarity 14.3 / 17

Operational Transparency 4.1 / 11

Contract Governance 0.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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):

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
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 39.0 — up to +15.3 composite points
Contract Governance scores 4.5 — up to +11.5 composite points
Developer Ergonomics scores 57.1 — up to +8.6 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/density/apis.yml: open an issue on github.com/api-evangelist/density 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 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Density Public API v3

Density v3 Public API for real-time occupancy and presence, historical space metrics (occupancy, utilization, time used, sessions), spaces / doorways / sensors / labels manageme...

Pricing Plans 2

Published pricing tiers and plan structures.

Density Plans Pricing

4 plans

PLANS

Density Price Estimates

0 plans

PLANS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Density Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Density Websockets Events

ASYNCAPI

Security Posture 2

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

Density Authentication

http/oauth2 · 2 schemes

SECURITY

Density Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Lifecycle

ErrorCatalog

Conformance

Components

Webhooks

DataModel

Scroll for all 7

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Deprecation

Deprecation

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Source (apis.yml)

aid: density
name: Density
description: Density builds radar-based occupancy sensors and a workplace analytics platform that measures how people use
  physical space without cameras or personally identifiable information. Its v3 Public API (api.density.io) exposes real-time
  occupancy and presence, historical metrics (occupancy, utilization, time used, sessions, raw sessions), spaces / doorways
  / sensors / labels resources, sensor and space health, wayfinding display tokens, and WebSocket streams for live floor presence
  and space occupancy. Authentication is OAuth 2.0 client-credentials (Auth0-backed) or static Bearer API tokens. Originally
  surfaced as a portfolio company of kleiner-perkins and enriched from Density's public developer surface.
url: https://raw.githubusercontent.com/api-evangelist/density/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://cdn.prod.website-files.com/5f49c40736fbe713860f9203/681a28ab6cdef3f72543b7bd_density-favicon_256x256.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- kleiner-perkins
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
x-docs-platform: redocly
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-09-25
tags:
- Company
- Enterprise
- Occupancy Sensors
- Workplace Analytics
- Real-Time
- Occupancy
- Sensors
- IoT
- Space Utilization
- PropTech
tags_raw:
- Company
- Enterprise
- Occupancy Sensors
- Workplace Analytics
- Real Time
- Occupancy
- Sensors
- IoT
- Space Utilization
- Proptech
apis:
- name: Density Public API v3
  description: Density v3 Public API for real-time occupancy and presence, historical space metrics (occupancy, utilization,
    time used, sessions), spaces / doorways / sensors / labels management, sensor and space health, WebSocket live streams,
    and wayfinding display tokens. OAuth 2.0 client-credentials or Bearer token authentication.
  humanURL: https://developers.density.io/docs
  baseURL: https://api.density.io/v3
  tags:
  - Occupancy
  - Presence
  - Sensors
  - Spaces
  - Analytics
  - Space
  tags_raw:
  - Occupancy
  - Presence
  - Sensors
  - Spaces
  - Analytics
  - Space
  properties:
  - type: Documentation
    url: https://developers.density.io/docs
  - type: APIReference
    url: https://developers.density.io/docs
  - type: Authentication
    url: authentication/density-authentication.yml
  - type: Webhooks
    url: asyncapi/density-websockets-events.yml
  - type: ErrorCatalog
    url: errors/density-problem-types.yml
  - type: Conventions
    url: conventions/density-conventions.yml
  - type: DataModel
    url: data-model/density-data-model.yml
common:
- type: Plans
  url: plans/density-plans-pricing.yml
- url: https://density.io/about-density/press
  type: Blog
- type: DomainSecurity
  url: security/density-domain-security.yml
- type: Website
  url: https://www.density.io
- type: DeveloperPortal
  url: https://developers.density.io/
- type: Documentation
  url: https://developers.density.io/docs
- type: APIReference
  url: https://developers.density.io/docs
- type: GettingStarted
  url: https://developers.density.io/quick_start/
- type: Support
  url: https://support.density.io/hc/en-us
- type: SignUp
  url: https://atlas.density.io/
- type: Pricing
  url: https://www.density.io/pricing
- type: TermsOfService
  url: https://www.density.io/legal/terms-of-service
- type: PrivacyPolicy
  url: https://www.density.io/legal/privacy-policy
- type: GitHubOrganization
  url: https://github.com/DensityCo
- type: StatusPage
  url: https://status.density.io
- type: Deprecation
  url: lifecycle/density-lifecycle.yml
- type: Authentication
  url: authentication/density-authentication.yml
- type: Conventions
  url: conventions/density-conventions.yml
- type: Lifecycle
  url: lifecycle/density-lifecycle.yml
- type: ErrorCatalog
  url: errors/density-problem-types.yml
- type: Conformance
  url: conformance/density-conformance.yml
- type: Packages
  url: packages/density-packages.yml
- type: Components
  url: components/density-components.yml
- type: Webhooks
  url: asyncapi/density-websockets-events.yml
- type: DataModel
  url: data-model/density-data-model.yml
- type: WellKnown
  url: well-known/density-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/density-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/density-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Density API — frequently asked questions

Does Density have an API?

Yes. APIs.io lists 1 API from Density, including Density Public API v3.

How do I authenticate with the Density API?

Density uses bearer-token authentication (http/oauth2 · 2 schemes). The details are profiled on APIs.io as Density Authentication.

How much does the Density API cost?

APIs.io lists 4 pricing plans for Density, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Density API ready for AI agents?

Density has a Kin Score of 51.4 out of 100 (developing) and an Agent Readiness score of 22.7 (agent-aware), scored by API Evangelist on 2026-10-31.

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