Stablecoin Python Packages

sardis-sdk

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

finaegis

Open-source core banking platform — 61 DDD domains with event sourcing, CQRS, and a schema-first GraphQL API. Multi-asset accounts, exchange, lending, compliance, x402/MPP machine payments, and a non-custodial wallet backend. Laravel 12 / PHP 8.4. Reference implementation: the GCU basket currency.

voidly-pay-llamaindex

LlamaIndex tools for Voidly Pay — drop-in agent-to-agent payments. USDC-backed, x402, signed envelopes. Live on Base mainnet.

solvela-sdk

Solana-native AI agent payment infrastructure. AI agents pay for LLM API calls with USDC-SPL on Solana via the x402 protocol.

dpx-sdk

MCP server for DPX — AI intelligence oracle and institutional cross-border settlement rail via Base mainnet

cryptochief-crypto-processing-python

Official async Python SDK for the Crypto Chief crypto payment gateway and crypto processing API. Accept crypto payments, send single and mass crypto payouts, sign on-chain transactions and smart-contract calls, manage wallets, convert fiat to crypto, and verify webhooks across Ethereum, BNB Smart Chain, Polygon, Tron, TON, Solana, Bitcoin, XRP and 20+ blockchains. USDT and USDC stablecoin support with int-precise amounts and asyncio/httpx.

voidly-pay-crewai

Off-chain credit ledger + hire marketplace for AI agents. Ed25519-signed envelopes, atomic settlement, hire-and-release escrow. https://voidly.ai/pay

voidly-pay-pydantic-ai

Pydantic AI tools for Voidly Pay — drop-in agent-to-agent payments. USDC-backed, x402, signed envelopes. Live on Base mainnet.

voidly-pay-langchain

Off-chain credit ledger + hire marketplace for AI agents. Ed25519-signed envelopes, atomic settlement, hire-and-release escrow. https://voidly.ai/pay

voidly-pay-autogen

Off-chain credit ledger + hire marketplace for AI agents. Ed25519-signed envelopes, atomic settlement, hire-and-release escrow. https://voidly.ai/pay

opensettle

Official Python SDK for the OpenSettle API. Stablecoin billing on Base, Ethereum, Polygon, Arbitrum, Solana, and Tron.

sardis-autogpt

Sardis payment blocks for AutoGPT - policy-controlled AI agent payments

sardis-compliance

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

sardis-core

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

sardis-wallet

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

sardis-api

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

sardis-cards

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

cngn-manager

Python HTTP for Humans.

sardis-ledger

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

sardis-checkout

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

sardis-chain

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

sardis-protocol

AP2/TAP mandate schemas and verifiers for Sardis

sardis

Payment OS for the Agent Economy — non-custodial MPC wallets with natural language spending policies for AI agents

zero-network

Python SDK for the Zero Network — stablecoin microtransactions for AI agents