Web3 Foundation

Web3 Foundation is a Swiss nonprofit founded in 2017 by Gavin Wood that funds research and development teams building the foundation of a decentralized web (Web3). It stewards and supports the Polkadot and Kusama networks, operates a research hub and an education/wiki program, and historically ran the Web3 Foundation Grants Program (now discontinued) to seed open-source software and protocol research. It is a funding and research organization rather than a traditional API provider: it publishes no public REST/OpenAPI surface, but does maintain an RFC 9116 security.txt and a coordinated vulnerability-disclosure program.

Web3 Foundation is profiled on the APIs.io network. Tagged areas include Company, Infrastructure, Web3, Blockchain, and Polkadot.

Web3 Foundation’s developer surface includes documentation, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
13.1/100 minimal ▬ flat Agent 7/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyInfrastructureWeb3BlockchainPolkadotKusamaResearchGrantsDecentralizationNonprofit

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 13.1/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 2.1 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 7/100 · 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 4 / 4
Consent & Bot Identity 3 / 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/web3-foundation: 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 2

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

Web3 Foundation Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Web3 Foundation Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

SecurityTxt
SecurityTxt
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 DomainSecurity
DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: web3-foundation
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/web3-foundation.png
name: Web3 Foundation
description: 'Web3 Foundation is a Swiss nonprofit founded in 2017 by Gavin Wood that funds research and development teams
  building the foundation of a decentralized web (Web3). It stewards and supports the Polkadot and Kusama networks, operates
  a research hub and an education/wiki program, and historically ran the Web3 Foundation Grants Program (now discontinued)
  to seed open-source software and protocol research. It is a funding and research organization rather than a traditional
  API provider: it publishes no public REST/OpenAPI surface, but does maintain an RFC 9116 security.txt and a coordinated
  vulnerability-disclosure program.'
url: https://raw.githubusercontent.com/api-evangelist/web3-foundation/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- polychain
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Infrastructure
- Web3
- Blockchain
- Polkadot
- Kusama
- Research
- Grants
- Decentralization
- Nonprofit
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://web3.foundation
- type: Documentation
  url: https://education.web3.foundation
- type: Blog
  url: https://medium.com/web3foundation/
- type: GitHubOrganization
  url: https://github.com/w3f
- type: PrivacyPolicy
  url: https://web3.foundation/privacy-and-cookies/
- type: SecurityTxt
  url: well-known/web3-foundation-security.txt
- type: WellKnown
  url: well-known/web3-foundation-well-known.yml
- type: VulnerabilityDisclosure
  url: security/web3-foundation-vulnerability-disclosure.yml
- type: Security
  url: https://web3.foundation/security-report/
- type: DomainSecurity
  url: security/web3-foundation-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1