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Pantalaimon

End-to-end encryption-aware Matrix reverse proxy

Matrix & XMPP Archived ★ 326 stars Medium setup Apache-2.0

This project is archived. Upstream development has stopped, so expect no new features or security fixes. Consider an actively maintained matrix & xmpp alternative.

Pantalaimon is an end-to-end encryption-aware Matrix reverse proxy daemon that allows non-encryption-capable clients and bots to participate in encrypted rooms. It sits between a Matrix client and a homeserver.

Official siteSource code

Key features

  • Adds E2EE to legacy clients
  • Transparent Matrix proxy
  • Useful for bots and bridges
  • Stores keys locally

Pros & cons

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Written in Python
  • Tiny footprint — runs in 128 MB RAM

Trade-offs

  • Niche use case
  • Requires a Matrix homeserver

Is Pantalaimon secure?

OSV.dev has no published security advisories for Pantalaimon's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Health badge

Maintain Pantalaimon? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 15 · archived

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[![SelfHostIndex health score for Pantalaimon](https://selfhostindex.com/badge/matrix-pantalaimon.svg)](https://selfhostindex.com/app/matrix-pantalaimon/)
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<a href="https://selfhostindex.com/app/matrix-pantalaimon/"><img src="https://selfhostindex.com/badge/matrix-pantalaimon.svg" alt="SelfHostIndex health score for Pantalaimon"></a>
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.. image:: https://selfhostindex.com/badge/matrix-pantalaimon.svg
   :alt: SelfHostIndex health score for Pantalaimon
   :target: https://selfhostindex.com/app/matrix-pantalaimon/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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