MCP 的零接触 OAuth
Zero-Touch OAuth for MCP

原始链接: https://blog.modelcontextprotocol.io/posts/enterprise-managed-auth/

模型上下文协议 (MCP) 的新扩展 **企业托管授权 (EMA)** 现已发布稳定版,为解决企业环境中因每个应用需单独授权而带来的繁琐问题提供了集中式解决方案。 此前,MCP 模型要求用户为每个服务器单独进行确认,这阻碍了企业采用,限制了安全审计,并增加了账户管理的复杂性。EMA 通过将组织的身份提供商 (IdP) 作为权威治理层,解决了上述问题。 **主要优势包括:** * **零配置上手:** 用户在首次登录后即可自动获得已授权 MCP 服务器的访问权限,无需手动确认。 * **集中化管控:** 安全团队可直接通过 IdP 实施统一的访问策略、角色分配和审计。 * **提升安全性:** 通过消除个人账户混用,企业能够确保更严格的数据治理。 该扩展已在业内获得显著推动力。Okta 提供核心身份基础设施,Anthropic (Claude) 和 Visual Studio Code 作为首批主要客户端。包括 Figma、Atlassian 和 Asana 在内的主要平台也已实现支持。该标准为“互联人工智能工作流”树立了新基准,实现了企业部署中无缝、安全且可扩展的工具集成。

```Hacker News最新 | 过往 | 评论 | 提问 | 展示 | 招聘 | 提交登录Zero-Touch OAuth for MCP (modelcontextprotocol.io)niyikiza 37 分钟前发布,4 点 | 隐藏 | 过往 | 收藏 | 1 条评论帮助 Jimmy0252 31 分钟前 [–] MCP OAuth 中容易被低估的一点是长期的客户端身份管理:如果工具注册门槛很低,团队仍然需要清晰的审计跟踪,以明确哪些客户端获取了哪些权限范围,以及由谁进行了授权。回复 指南 | 常见问题 | 列表 | API | 安全 | 法律 | 加入 YC | 联系 搜索:```
相关文章

原文

The Enterprise-Managed Authorization extension is now stable. Organizations can centrally manage authorization for MCP servers and end-users can access all connected MCP servers through a single log in. The extension is being adopted by Anthropic, Microsoft, Okta and a growing number of MCP servers.

The Enterprise-Managed Authorization (EMA) extension is now stable. We’ve heard from the community that authorization and repeated consent prompts from connected MCP servers is one of the biggest pain points when it comes to managing connectivity in enterprise environments. This extension helps address this.

EMA allows organizations to control MCP server access centrally through their trusted identity provider. For end-users, this means a zero-touch setup: the MCP servers they need are connected on first login, with no per-app OAuth and nothing to configure as a one-off.

Standard MCP authorization requires authenticating to every server one by one. Enterprise-Managed Authorization authenticates once through your identity provider and every server the admin authorized connects automatically, scoped to the user’s groups and roles.

Per-user auth is high friction

The standard MCP authorization model was designed to be user-scoped and bound to the traditional interactive auth conventions. While this might work well for more general consumer scenarios where individuals decide what touches their data, this doesn’t quite scale for enterprise deployments:

  • Every employee has to authorize every server individually: onboarding means manually connecting service after service.
  • Security teams cannot enforce consistent policy: access is whatever each user authorized, with no central control or audit trail.
  • Work and personal accounts blur together: there’s no way to require a corporate identity, so a user can connect a personal account to a work tool.

This combination of factors slows MCP adoption and pushes people toward brittle workarounds. With no universal standard for preserving shared auth state, everyone invents their own bespoke solution. The data and tools are available, but the per-user authorization tax keeps most of them switched off.

Authorize once, inherit everywhere

Enterprise-Managed Authorization makes the organization’s IdP the authoritative decision-maker for MCP server access. Administrators define the policy once and users can authenticate with their existing identity into the MCP host. The IdP can grant or deny access based on group membership, role, and conditional access rules.

Under the hood, the client obtains an Identity Assertion JWT Authorization Grant (ID-JAG) from the IdP during single sign-on and exchanges it for an access token from the MCP server’s authorization server. The user is never redirected through a per-server consent screen. Three properties fall out of that flow:

  • Authorize once, inherit everywhere: admins enable a server for the org. Users get it automatically, scoped to the groups and roles they already have.
  • Centralized policy and audit: access decisions live in the IdP admin console, with one auditable trail across every connector.
  • Removing personal/enterprise mixups: by removing the interactive account selection step, it’s much easier to prevent data flowing between personal and enterprise accounts by mistake or compromise.

We see this as a brand new baseline for MCP in the enterprise. When users log in, their client should be connected to the tools and data they’re authorized to use with no extra steps in between.

Early adopters

This launch brought together three groups that collaborated closely on making the implementation real:

  • Identity providers: Okta is the first supported identity provider. Organizations using Okta can provision MCP access to supported servers through any supported client, using Okta’s Cross App Access (XAA).
  • Clients: Anthropic has implemented the extension in its shared MCP layer for Claude. Admins can authorize MCP servers for users across Claude, Claude Code, and Cowork. Additionally, Visual Studio Code has also added support for EMA right in the IDE.
  • Servers: Asana, Atlassian, Canva, Figma, Granola, Linear and Supabase now support EMA, with Slack and more actively adding support.

We’re excited for more identity providers, clients, and servers to adopt Enterprise-Managed Auth to help reduce the authorization-related fatigue and significantly improve the security and observability posture for its implementers.

“The momentum around MCP is incredible, but as we move toward an interconnected AI workforce, security can’t be an afterthought. By embedding the Cross App Access protocol into MCP as the Enterprise-Managed Authorization extension, we turn identity into a centralized governance plane and give security teams strict compliance control and users a seamless, secure experience.”

Aaron Parecki, Director of Identity Standards, Okta

“The Figma MCP brings the power of code and canvas together so teams can move faster, explore more and ship products that stand out. As MCP adoption grows, XAA makes it easier for enterprises to scale their MCP deployments securely without slowing teams down.”

Devdatta Akhawe, VP of Engineering, Figma

“Logging in once and automatically having all your MCP connectors automatically setup is pretty magical.”

Tom Moor, Head of Engineering, Linear

Get involved

As with all other MCP extensions, features, and enhancements, we welcome your input. We’re encouraging clients, servers, and identity platforms to review the extension specification and add support for the new standard into their products:

If you’re interested in discussing the extension, sharing compatibility reports, or iterating on the extension, join the EMA Interest Group.

Acknowledgements

Enterprise-Managed Authorization is the work of the MCP community: the authors of SEP-990, the maintainers of the ext-auth repository, and the identity and MCP providers who tested early implementations and pushed the spec forward. Thank you to everyone who contributed.

联系我们 contact @ memedata.com