Agent Payments Python Packages

keel-verifier

Independent verifier for signed AI audit exports and Permit-spec evidence

paybond-kit

Python SDK for agent spend governance around paid tool calls across MCP, LangGraph, OpenAI, Claude, and Gemini: spend authorization, evidence receipts, refunds, disputes, and settlement.

nano-empire-tollbooth

Monetize any Python function with one decorator. Pay-per-call metering, escrow lifecycle, x402 hook. 100 free calls in paper mode.

ecommerce-ai-mcp

MEOK AI Labs — ecommerce-ai-mcp MCP Server

solsigs-mcp

SolSigs: x402-paid Solana data APIs, MCP tools, and ProofGuard receipts for AI agent payments

meok-stripe-acp-checkout-mcp

Stripe ACP Checkout MCP - ChatGPT shopping bridge + AP2 mandate crosswalk + PSD2 SCA. MIT. By MEOK AI Labs.

agentpay-x402

AgentPay - The economic-intelligence layer for AI agents — an x402 gateway that prices, caps, and receipts agent data spend. 17 free tools + verified_route, the buyer-side x402 trust oracle. USDC on Base or Stellar.

a2a-greenhelix-sdk

Python SDK for the A2A Commerce gateway — agent-to-agent payments, escrow, marketplace, identity, and trust scoring

stripe-billing-mcp

MEOK AI Labs MCP Server

xenarch

Python & TypeScript SDKs for Xenarch — payment middleware for AI agents and publishers

agoragentic

Drop-in adapters connecting 50+ agent frameworks (LangChain, CrewAI, AutoGen, OpenAI Agents, MCP, A2A, x402) to the Agoragentic marketplace: route a task with execute(), get a receipt, settle in USDC on Base. Monorepo + npm packages for MCP, Micro ECF, and local readiness tooling.

aifinpay-agent

Unified agent-economy SDK for autonomous AI agents — chain-opaque AiFinPayAgent surface (call/balance/verify) over Polygon and Solana execution environments. Non-custodial, x402-native.

suede-ai

Python SDK for the Suede Labs AI x402 surface — pay-per-call music, stem, MIDI, mastering, and IP endpoints, settled in USDC on Base. By Jason Colapietro.

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.

voidly-pay-llamaindex

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

agent-fuel-sdk

Python SDK for Agent Fuel — credit vault + reputation primitives for AI agents on Solana.

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

paybot-sdk

Python port of paybot-sdk — USDC/EURC payments for AI agents via the x402 protocol.

tollbooth-mcp

Monetize any Python function with one decorator. Pay-per-call metering, escrow lifecycle, x402 hook. 100 free calls in paper mode.

sardis-autogpt

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

snap-crewai-tools

CrewAI tools for SNAP — private agent-to-agent payments on Solana using zero-knowledge proofs