W 
w3.org
W3C is the standards body that publishes web specifications, drafts, and related technical resources. It also operates public developer tools and validator services for checking web content and exposes public metadata about specifications, groups, organizations, and users.
w3.org exposes public read-only HTTP surfaces: the W3C API at api.w3.org, the public standards/drafts catalog at /TR/, and public validator/checker HTTP endpoints such as the Nu Html Checker; no GraphQL, MCP server, CLI, or developer authentication surface was found.
discovered 2mo ago
REST · OpenAPI3
- W3C standards and draftsdiscovered
- Nu Html Checker web APIdiscovered
- W3C API v1discovered
conventions · 0/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing