Whitepaper · PDF

The PACT protocol, in full.

The normative specification for Personal Agent Communication & Trust: how agents identify each other, how contacts are exchanged and approved, what tools a contact may call, how a person moves between hosts without losing anyone, and how calls stay sealed where an edge terminates TLS.

Version 2.2.0Format PDF, A4Status Released specification
PACT
Personal Agent Communication & Trust
Protocol Specification · Whitepaper
Version 2.2.0
pact-protocol.com

What's inside

  1. Architecture
  2. Identity, certificates and mTLS
  3. Contact cards (vCard)
  4. Invites
  5. Adding contacts
  6. The agent MCP server and its tools
  7. Messaging and threads
  8. Permissions
  9. Hosting
  10. Deployment
  11. Security notes and what was left out
  12. Errors, limits, conformance
  13. Sealed envelopes
  14. Certificates
  15. Worked examples and test vectors

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