Authentication on Kevin Kellerhttps://kevinkeller.org/categories/authentication/Recent content in Authentication on Kevin KellerHugo -- gohugo.ioenkellerkev@gmail.com (Kevin Keller)kellerkev@gmail.com (Kevin Keller)© 2026 Kevin KellerMon, 30 Mar 2026 10:00:00 +0000Snowflake Managed MCP Servers Support External OAuth — Here's Howhttps://kevinkeller.org/posts/snowflake-mcp-external-oauth-authentication/Mon, 30 Mar 2026 10:00:00 +0000kellerkev@gmail.com (Kevin Keller)https://kevinkeller.org/posts/snowflake-mcp-external-oauth-authentication/Snowflake’s managed MCP servers work with external OAuth tokens — JWT-signed, role-scoped, and RBAC-enforced. Tested end-to-end with tool discovery and SQL execution.How JWT Tokens Actually Work — And How Snowflake Uses Themhttps://kevinkeller.org/posts/how-jwt-tokens-work/Fri, 20 Mar 2026 10:00:00 +0000kellerkev@gmail.com (Kevin Keller)https://kevinkeller.org/posts/how-jwt-tokens-work/A visual, hands-on explanation of JSON Web Tokens — what they contain, how signing works, why they expire, and how Snowflake uses them for External OAuth authentication.