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MCP Cross App Access Explained: Enterprise IdP Controls Server Access

By PulseAugur Editorial · [1 sources] ·

The MCP Cross App Access (XAA) extension enables enterprise identity providers to manage user access to MCP servers. This process involves a three-step HTTP exchange where a client obtains an ID token from the IdP, exchanges it for an ID-JAG (a token conforming to RFC 8693), and then uses the ID-JAG to acquire an access token from the MCP server's authorization server (following RFC 7523). This mechanism centralizes access control within the IdP, allowing administrators to grant or revoke permissions across multiple MCP servers from a single console without requiring per-server user consent. AI

RANK_REASON Detailed explanation of a specific technical extension for an enterprise authorization system.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

MCP Cross App Access Explained: Enterprise IdP Controls Server Access

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5 / 100
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Tool
Detailed explanation of a specific technical extension for an enterprise authorization system.
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product, infra
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COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · Mike Moore ·

    MCP Cross App Access Explained: The ID-JAG Exchange on the Wire

    <p><em>Originally published at <a href="https://webofmike.com/mcp-oauth-xaa/?utm_source=devto&amp;utm_medium=syndication&amp;utm_campaign=mcp-oauth-xaa" rel="noopener noreferrer">webofmike.com</a> on 2026-10-09. The demo repo and every command in it were run before publishing.</e…

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