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  2. ›Amazon Web Services
  3. ›AWS Identity and Access Management
  4. ›Update

Feature•Jul 9, 2026

OAuth support for the AWS MCP Server

AWS Identity and Access ManagementAWS · Security, Identity, & Compliance

You can now connect AI agents directly to the AWS MCP Server using AWS Sign-In. Agents connect using industry-standard OAuth without requiring additional authentication software. Existing AWS identities, sign-in methods, IAM permissions, and governance controls you have already set up continue to apply.

Developers can authorize agents interactively through a browser or programmatically using non-interactive (headless) authorization. Administrators can govern OAuth access using familiar IAM policies together with new OAuth capabilities, including global condition keys, token introspection and revocation APIs, dynamic client registration, and CloudTrail audit events.

To learn more, see the OAuth Support for the AWS MCP Server blogpost, Sign-In with OAuth 2.0 in the AWS Sign-In User Guide, and Setting up the AWS MCP Server in the Agent Toolkit for AWS User Guide.

Read the original announcement↗

More from AWS Identity and Access Management

All AWS Identity and Access Management updates →

  1. AWS IAM outbound identity federation now supports interface VPC endpoints for OIDC discovery

    AWS Identity and Access Management (IAM) outbound identity federation now supports Amazon Virtual Private Cloud (VPC) endpoints for the OpenID Connect (OIDC) discovery APIs.

    AWS Identity and Access Management•Feature•Sep 25, 2026

  2. New AWS experience helps builders get started and ship faster

    Builders can now sign up for a new simplified experience that makes it faster to turn ideas into running code on AWS. AWS services provide an array of configuration options so that the largest enterprises can customize settings for their distinct needs.

    AWS Identity and Access Management•Feature•Sep 16, 2026

  3. AWS STS simplifies session token size limits and adds session token size monitoring

    AWS Security Token Service (STS) now enforces a single 4,096-byte size limit on session tokens. Previously, STS enforced separate limits on session token size and passed-in parameters (i.e., inline policies, managed policies, and session tags).

    AWS Identity and Access Management•Feature•Sep 15, 2026

  4. AWS improves regional resiliency for root user sign-in

    AWS root user sign-in is now served across US East (N. Virginia), US East (Ohio), and US West (Oregon), with sign-in traffic distributed across all three Regions. This change reduces reliance on US East (N. Virginia) and improves resiliency during service disruptions.

    AWS Identity and Access Management•Feature•Sep 14, 2026

  5. IAM Roles Anywhere now provides a Java plugin for the AWS SDK

    AWS Identity and Access Management (IAM) Roles Anywhere now provides a plugin for the AWS SDK for Java v2 that enables workloads running outside of AWS to obtain temporary AWS credentials directly within the Java application process.

    AWS Identity and Access Management•Feature•Aug 25, 2026