By John Gruber
OpenAI, Anthropic, Cursor, and Perplexity chose WorkOS over building it themselves.
My thanks for WorkOS for, once again, sponsoring Daring Fireball for the last week. If you’re ready to sell to enterprise customers, your product may be ready — but is your auth infrastructure?
If you’re building B2B SaaS, especially AI, you quickly need enterprise features like SSO, SCIM, and audit logs. Your developers shouldn’t waste cycles rebuilding that infrastructure. Free them to focus on what sets you apart. WorkOS gives you production-ready APIs for auth and access control that integrate directly into your product. Trusted by over 2,000 companies, including OpenAI, Anthropic, Cursor, and Vercel.
★ Sunday, 10 May 2026