ampersend-sdk

Python SDK for integrating x402 payment capabilities into A2A (Agent-to-Agent) protocol applications.

Quick Start

# agent.py
import os
from ampersend_sdk import create_ampersend_treasurer
from ampersend_sdk.a2a.client import X402RemoteA2aAgent

treasurer = create_ampersend_treasurer(
    smart_account_address=os.environ["SMART_ACCOUNT_ADDRESS"],
    session_key_private_key=os.environ["SESSION_KEY_PRIVATE_KEY"],
)

root_agent = X402RemoteA2aAgent(
    treasurer=treasurer,
    name="my_agent",
    agent_card="https://agent.example.com/.well-known/agent-card.json",
)

Run with ADK: adk run agent.py

Package Structure

ampersend_sdk/
├── a2a/
│   ├── client/          # Client-side x402 support
│   └── server/          # Server-side x402 support
└── x402/                # Core x402 components
    ├── treasurer.py
    └── wallets/         # EOA & Smart Account wallets

Documentation

→ Complete Python SDK Documentation

Development

# Test
uv run -- pytest

# Lint & format
uv run -- ruff check python
uv run -- ruff format python

# Type check
uv run -- mypy python

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