agentguard-python-sdk 0.2.3

A production-grade middleware for AI agents to perform on-chain payments and verifiable consent.

AgentGuard SDK

AgentGuard is a production-grade middleware that enables AI agents to perform on-chain payments and generate verifiable consent proofs in compliance with DPDP (Digital Personal Data Protection) standards.

By isolating private keys in a hardened MCP Server (Vault) and using the AgentGuard Backend (Dispatcher) as a secure proxy, the SDK allows developers to add monetization and compliance to their agents with zero blockchain complexity.

Installation

pip install agentguard-python-sdk

Quick Start (3-Line Usage)

import asyncio
from agentguard import AgentGuardClient
from agentguard.types import DelegatedAuthorization, AuthorizationConstraints, NonceContext, AuthorizationMetadata

async def main():
    # 1. Initialize the client
    # NOTE: The backend requires a cryptographic signature on `/pay`.
    # Provide `private_key` as a base64-encoded Algorand private key seed for request signing.
    async with AgentGuardClient(
        wallet_address="YOUR_WALLET_ADDRESS",
        private_key="YOUR_PRIVATE_KEY_B64",
        backend_url="https://agentguard-backend-9s8j.onrender.com"
    ) as client:
        
        # 1.5 Authorize a capability (LogicSig)
        auth = DelegatedAuthorization(
            authorization_id="YOUR_AUTHORIZATION_ID",
            principal_id="YOUR_WALLET_ADDRESS",
            logic_sig_b64="YOUR_SIGNED_LOGICSIG_BASE64",
            constraints=AuthorizationConstraints(
                max_amount_microalgos=1000000,
                expires_at_unix=1900000000,
                max_txns_per_window=10,
                window_seconds=3600
            ),
            nonce_context=NonceContext(lease_strategy="deterministic", scope="session"),
            metadata=AuthorizationMetadata(created_at=1716000000, sdk_version="0.2.2", delegation_type="LogicSig")
        )
        await client.authorize(auth)
        
        # 2. Perform a secure payment (includes automatic DPDP consent hashing)
        receipt = await client.pay_and_fetch(
            resource_url="https://api.stock.com/reliance",
            amount_algo="0.05",
            purpose="Financial Analysis",
            authorization_id="YOUR_AUTHORIZATION_ID"
        )
        print(f"Payment Successful! TX ID: {receipt.tx_id}")

        # 3. Verify compliance audit trail
        proof = await client.verify(receipt.tx_id)
        print(f"On-Chain Verified: {proof.verified}")

if __name__ == "__main__":
    asyncio.run(main())

Architecture

1. SDK: Generates UUID nonces and SHA256 consent hashes.
2. Backend: Proxies requests to the internal vault and maintains audit records.
3. MCP Server (Vault): A hardened, isolated environment that signs transactions using Algorand.
4. Algorand Blockchain: Provides the irrefutable proof-of-consent and payment settlement.

Features

• Async First: Built on httpx for high-performance agentic loops.
• Zero-Trust: Private keys never leave the vault.
• DPDP Compliant: Automatic cryptographic logging of purpose-bound consent.
• Simple Audit: Direct links to blockchain explorers for every transaction.

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© 2026 AgentGuard Team. Built for the Algorand Ecosystem.