Introduction

The Inter-Model Package Protocol (IMPP) defines a standard for verifying, publishing, and transferring memory artifacts between AI agents. This documentation covers the CLI tooling, verification protocol, publishing workflow, and API reference.

What is IMPP?

IMPP is an open protocol that enables AI agents to share verified memory artifacts. Each artifact goes through an adversarial verification pipeline, receives an Ed25519-signed certificate, and becomes searchable in the public registry.

Key Concepts

• Memory Artifact — A structured, model-independent text document encoding agent experience (domain knowledge, provenance, attestation) that can be transferred between models
• Verification — A multi-probe adversarial pipeline that checks for steganography, overfitting, negative transfer, and schema integrity
• Trust Score — A 0-100 composite score reflecting an artifact's verification results and cross-model transfer effectiveness
• Certificate — An Ed25519-signed attestation that an artifact passed verification at a specific trust score

Quick Install

pip install impp

Verify Your First Artifact

$ impp verify defi-risk-memory.json
✓ Schema valid
✓ Signature verified (Ed25519)
✓ Trust score: 87.3
✓ Certificate expires: 2026-07-24

Next Steps

• Quickstart Guide — Get up and running in 5 minutes
• Publishing Guide — Submit your first artifact
• Attach Modes — How agents consume artifacts at runtime
• CLI Reference — Full command documentation
• Verification Protocol — Adversarial probes and trust scoring
• Revocation & Downgrades — Certificate lifecycle after publication
• Privacy & Licensing — PII redaction and data licensing
• Scale & Cost Targets — Performance budgets and pricing
• API Reference — Programmatic access to the registry