Stack

Stack is a spatial web browser that organizes the web as cards on a canvas rather than rows of tabs, built for keyboard-first, distraction-free browsing. Features include Fly Mode for fast navigation, multiple user profiles, customizable visual themes called realms, Chrome extension support, and privacy-focused browsing without ads or trackers, with multiplayer collaboration planned. Stack is a consumer desktop application and does not currently publish a public API, developer platform, or SDK. Backed by 500 Global and community-funded via WeFunder.

Stack is profiled on the APIs.io network. Tagged areas include Company, Browser, Web Browser, Productivity, and Privacy.

Stack’s developer surface includes engineering blog and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
11.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyBrowserWeb BrowserProductivityPrivacyConsumerSpatial Computing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 11.4/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/stack: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Stack Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: stack
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stack.png
name: Stack
description: Stack is a spatial web browser that organizes the web as cards on a canvas rather than rows of tabs, built for
  keyboard-first, distraction-free browsing. Features include Fly Mode for fast navigation, multiple user profiles, customizable
  visual themes called realms, Chrome extension support, and privacy-focused browsing without ads or trackers, with multiplayer
  collaboration planned. Stack is a consumer desktop application and does not currently publish a public API, developer platform,
  or SDK. Backed by 500 Global and community-funded via WeFunder.
url: https://raw.githubusercontent.com/api-evangelist/stack/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Browser
- Web Browser
- Productivity
- Privacy
- Consumer
- Spatial Computing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://stackbrowser.com
- type: Blog
  url: https://stackbrowser.com/blog
- type: TermsOfService
  url: https://stackbrowser.notion.site/Terms-Privacy-4c1dba326371411b81ca797290baab73
- type: PrivacyPolicy
  url: https://stackbrowser.notion.site/Terms-Privacy-4c1dba326371411b81ca797290baab73
- type: DomainSecurity
  url: security/stack-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: minimal
  pass: local-v1
  artifacts_added: 1