Skip to main content

Installation

Requirements​

  • Python 3.11+
  • A crypto wallet private key (EVM or Solana)

Install via pip​

# EVM chains (Ethereum, Base, Optimism, …)
pip install x402-openai[evm]

# Solana
pip install x402-openai[svm]

# All chains
pip install x402-openai[all]

Install via uv​

uv add "x402-openai[evm]"

Verify Installation​

import x402_openai
print(x402_openai.__version__)

Environment Variables​

Store your private key in an environment variable rather than hardcoding it:

export EVM_PRIVATE_KEY="0x…"
# or
export SOLANA_PRIVATE_KEY="base58…"
import os
from x402_openai import X402OpenAI
from x402_openai.wallets import EvmWallet

client = X402OpenAI(
    wallet=EvmWallet(private_key=os.environ["EVM_PRIVATE_KEY"]),
)

Next Steps​

  • Quickstart — send your first paid request
  • Wallets — EVM, Solana, and BIP-39 mnemonic options