--- title: Securing MCP Servers with OAuth2: Ory Hydra + Claude... description: OAuth2 implementation for Model Context Protocol (MCP) servers using Ory Hydra and Kratos. Covers Dynamic Client Registration, token introspection, social... canonical: https://daily.dev/posts/securing-mcp-servers-with-oauth2-ory-hydra-claude-code-chatgpt-q8dgkqusv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Securing MCP Servers with OAuth2: Ory Hydra + Claude Code + ChatGPT | daily.dev og:description: OAuth2 implementation for Model Context Protocol (MCP) servers using Ory Hydra and Kratos. Covers Dynamic Client Registration, token introspection, social... og:url: https://daily.dev/posts/securing-mcp-servers-with-oauth2-ory-hydra-claude-code-chatgpt-q8dgkqusv og:image: https://api.daily.dev/og/posts/Q8DGkQuSV.png og:image:alt: Securing MCP Servers with OAuth2: Ory Hydra + Claude Code + ChatGPT og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Securing MCP Servers with OAuth2: Ory Hydra + Claude Code + ChatGPT **[This is Learning](https://daily.dev/sources/til)** · 24 min read · 0 upvotes · 0 comments ## Summary OAuth2 implementation for Model Context Protocol (MCP) servers using Ory Hydra and Kratos. Covers Dynamic Client Registration, token introspection, social login via GitHub, and compatibility testing across Claude (Desktop, CLI, Web) and ChatGPT clients. Documents five critical bugs encountered during implementation, including Claude's DCR validation failures and missing scope parameters, with working solutions including a DCR proxy pattern. Includes production security checklist and comparison of OAuth2 support across AI assistant platforms. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Building the MotherDuck Remote MCP Server: A Journey Through Context Engineering and OAuth Proxies](https://daily.dev/posts/building-the-motherduck-remote-mcp-server-a-journey-through-context-engineering-and-oauth-proxies-l3ynlywfm) · MotherDuck · 3 upvotes · 0 comments - [Is that allowed? Authentication and authorization in Model Context Protocol](https://daily.dev/posts/is-that-allowed-authentication-and-authorization-in-model-context-protocol-uzotm4fwu) · Stack Overflow Blog · 1 upvotes · 0 comments - [Is MCP authentication that complicated?](https://daily.dev/posts/is-mcp-authentication-that-complicated--sepotwywi) · HelixML · 3 upvotes · 0 comments - [OAuth for MCP – Emerging Enterprise Patterns for Agent Authorization](https://daily.dev/posts/oauth-for-mcp-emerging-enterprise-patterns-for-agent-authorization-rzgmmudcp) · Security Boulevard · 2 upvotes · 0 comments --- Tags: [#nodejs](https://daily.dev/tags/nodejs), [#authentication](https://daily.dev/tags/authentication), [#mcp](https://daily.dev/tags/mcp), [#fastify](https://daily.dev/tags/fastify) [View this post on daily.dev](https://daily.dev/posts/securing-mcp-servers-with-oauth2-ory-hydra-claude-code-chatgpt-q8dgkqusv) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Securing MCP Servers with OAuth2: Ory Hydra + Claude Code + ChatGPT","url":"https://daily.dev/posts/securing-mcp-servers-with-oauth2-ory-hydra-claude-code-chatgpt-q8dgkqusv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/securing-mcp-servers-with-oauth2-ory-hydra-claude-code-chatgpt-q8dgkqusv"},"datePublished":"2026-01-30T15:18:35.867Z","dateModified":"2026-01-30T15:19:00.130Z","description":"OAuth2 implementation for Model Context Protocol (MCP) servers using Ory Hydra and Kratos. 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