---
author: Jan Brennenstuhl
canonical_url: https://www.janbrennenstuhl.eu/talks/economies-of-scale-for-mcp/
description: Why you need an identity broker — with Magnus Jungsbluth at AGNTCon + MCPCon Europe.
id: jb-talk-agntcon-2026
kind: talk
license:
  name: CC BY 4.0
  scope: Original text; credited third-party media retain their own rights.
  url: https://creativecommons.org/licenses/by/4.0/
markdown_url: https://www.janbrennenstuhl.eu/talks/economies-of-scale-for-mcp/index.md
modified: '2026-09-18T00:00:00+02:00'
published: '2026-09-18T00:00:00+02:00'
review_basis: publication
review_status: reviewed
reviewed: '2026-09-18'
series: ''
status: published
title: Economies of Scale for MCP and Agents
topics:
- agentic-engineering
- identity-authentication
---

# Economies of Scale for MCP and Agents

Why you need an identity broker — with Magnus Jungsbluth at AGNTCon + MCPCon Europe.

Presented by Magnus Jungsbluth and Jan Brennenstuhl at AGNTCon + MCPCon Europe in Amsterdam on 18 September 2026.

<a id="materials"></a>
## Materials

- [Presentation slides (PDF)](https://agenticidentitybroker.dev/docs/presentations/2026-09-18_agntcon-mcpcon-agentic-identity-broker.pdf)
- [Session information](https://agntconmcpconeu26.sched.com/event/2RBAI)
- [Supporting article: What I Learned Building an Identity Broker With Coding Agents](https://www.janbrennenstuhl.eu/agentic-identity-broker/)

<a id="reading-companion"></a>
## Reading companion

An agent should not hold a shared, long-lived provider credential. The broker ties delegated access to both the person and the agent, with chosen permissions and optional expiry. On a tool call, a gateway exchanges the agent's token for a provider token; the provider token does not enter the agent's context.

This is a short reading companion, not a transcript. The supporting article explains the identity model and the engineering lessons in accessible HTML.


---

Cite as: Jan Brennenstuhl. "Economies of Scale for MCP and Agents." Brennenstuhl on Security, 18 September 2026. https://www.janbrennenstuhl.eu/talks/economies-of-scale-for-mcp/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) for the original text; credited third-party media keep their own rights.