vouch-protocol 1.0.1

The Identity & Reputation Standard for AI Agents

Vouch Protocol

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"The 'Green Lock' for the Agentic Web."

Vouch is the open-source standard for AI Agent Identity, Reputation, & Liability. It provides the missing cryptographic handshake to allow autonomous agents to prove their intent and accountability.

⚠️ Public Beta: This protocol is v1.0 compliant but the implementation is currently in Beta. Please report issues on GitHub.

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⚡ Quick Start

1. Installation

pip install vouch-protocol

2. Usage

For Gatekeepers (Verifying an incoming agent):

from fastapi import FastAPI, Header, HTTPException
from vouch import Verifier

app = FastAPI()

@app.post("/api/resource")
def protected_route(vouch_token: str = Header(alias="Vouch-Token")):
    # Verify the cryptographic intent
    is_valid, passport = Verifier.verify(vouch_token)
    
    if not is_valid:
        raise HTTPException(status_code=401, detail="Untrusted Agent")
        
    return {"status": "Verified", "agent": passport.sub}

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�� Integrations

1. Model Context Protocol (MCP)

Vouch includes a native MCP server for Claude Desktop & Cursor.

Configuration:

{
  "mcpServers": {
    "vouch": {
      "command": "python3",
      "args": ["-m", "vouch.integrations.mcp.server"],
      "env": {
        "VOUCH_PRIVATE_KEY": "YOUR_KEY",
        "VOUCH_DID": "did:web:your-domain.com"
      }
    }
  }
}

2. LangChain & CrewAI

Vouch works as a native Tool for most agent frameworks.

from vouch.integrations.crewai.tool import VouchSignerTool

agent = Agent(
    role='Analyst', 
    tools=[VouchSignerTool()]
)

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📜 License & Legal

This project is licensed under the GNU Affero General Public License v3.0 (AGPLv3). View Full License

🛡️ Defensive Disclosure

This protocol includes a defensive disclosure (Prior Art) published Dec 14, 2025, to protect the ecosystem from patent trolls. Read Disclosure