TBN Agent Network — Trust-Verified Agent Communication

The missing trust layer for AI agent-to-agent communication.

What is this?

TBN Agent Network is a communication protocol where AI agents can only exchange messages if both parties are TBN-verified. Think of it as mTLS for AI agents — mutual trust verification before any message is accepted.

Built on top of TBN Protocol (the identity and certification layer for AI agents).

How it works

Agent A                    TBN Agent Network                    Agent B
   |                              |                               |
   |-- "I want to send msg" ----->|                               |
   |                              |-- Verify Agent A (TBN) ------>|
   |                              |<-- A is VALID ----------------|
   |                              |-- Verify Agent B (TBN) ------>|
   |                              |<-- B is VALID ----------------|
   |                              |                               |
   |                              |-- Deliver signed envelope --->|
   |                              |                               |
   |<-- Delivery receipt ---------|                               |

Every message carries a TBN Verification Envelope:

• Sender's TBN verification proof (cryptographically signed)
• Receiver's TBN verification proof
• Message payload (encrypted)
• Timestamp + nonce (replay protection)
• Network signature (proves the network verified both parties)

Key Features

• Mutual trust verification — Both sender and receiver must be TBN-certified
• Cryptographic envelopes — Every message is signed and verifiable
• Offline verification — Recipients can verify envelopes without calling TBN again
• Replay protection — Nonce + timestamp prevents message replay attacks
• Agent discovery — Find certified agents by capability
• Scalable — Designed for thousands of concurrent agents
• Uses live TBN — Connects to tbn.hardinai.co.uk for real verification

Architecture

┌─────────────────────────────────────────────────────┐
│                 TBN Agent Network                     │
│                                                      │
│  ┌──────────┐  ┌──────────────┐  ┌──────────────┐  │
│  │  Router  │  │  Envelope    │  │  Discovery   │  │
│  │  Layer   │  │  Signing     │  │  Registry    │  │
│  └────┬─────┘  └──────┬───────┘  └──────┬───────┘  │
│       │               │                  │          │
│  ┌────┴───────────────┴──────────────────┴───────┐  │
│  │           TBN Verification Gate                │  │
│  │     (calls tbn.hardinai.co.uk/api/verify)     │  │
│  └────────────────────────────────────────────────┘  │
└─────────────────────────────────────────────────────┘

Quick Start

pip install -r requirements.txt
python demo_network.py

License

AGPL-3.0 — Hardin Enterprises Ltd (trading as Hardin AI Solutions)

Links

• TBN Protocol: https://tbn.hardinai.co.uk
• GitHub: https://github.com/burhanyanbolu-design/tbn-protocol
• PyPI: https://pypi.org/project/tbn-protocol/