Privacy Policy

Last updated: March 2026

MuxAgent ("we", "us", "our") operates the MuxAgent mobile application and CLI daemon software. This Privacy Policy explains how we handle information when you use our services.

Information We Collect

MuxAgent is designed with privacy at its core. Our relay server facilitates encrypted connections between your mobile app and CLI daemons but cannot read the content of your communications.

  • Account Information. When you set up MuxAgent, cryptographic key pairs are generated locally on your devices. We store public keys on our relay server to facilitate device pairing.
  • Connection Metadata. Our relay server processes minimal metadata needed to route encrypted messages between your devices, such as machine identifiers and connection timestamps.
  • Encrypted Data. All agent session data, code, and conversations are encrypted end-to-end using X25519 key exchange and ChaCha20-Poly1305. Our servers never have access to plaintext content.
  • Local Data. The mobile app stores session metadata locally on your device. The CLI stores session data on your local machine. This data does not leave your devices.

How We Use Information

We use the limited information we process to:

  • Route encrypted messages between your paired devices
  • Authenticate devices during connection
  • Maintain service reliability and security

We do not sell, rent, or share your information with third parties for marketing purposes.

Data Security

  • All device-to-device communication uses end-to-end encryption (Ed25519 signing, X25519 key exchange, ChaCha20-Poly1305 AEAD)
  • The relay server cannot decrypt your communications
  • Cryptographic keys are generated and stored locally on your devices

Data Retention

  • Connection metadata is retained only while your devices are connected
  • Local data (session history, settings) is stored on your devices and under your control
  • You can delete local data at any time by removing the app or CLI

Third-Party Services

MuxAgent may use third-party infrastructure for relay server hosting. These providers do not have access to decrypted content due to our end-to-end encryption design.

Children's Privacy

MuxAgent is not directed at children under 13. We do not knowingly collect information from children.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date.

Contact Us

If you have questions about this Privacy Policy, please open an issue on our GitHub repository.