greenhelix-multi-agent-commerce-cookbook
The Multi-Agent Commerce Cookbook: Orchestrating Agent Teams That Discover, Negotiate, Pay, and Verify Each Other
Notice: This is an educational guide with illustrative code examples. It does not execute code or install dependencies. All examples use the GreenHelix sandbox (https://sandbox.greenhelix.net) which provides 500 free credits — no API key required to get started.
Referenced credentials (you supply these in your own environment):
GREENHELIX_API_KEY: API authentication for GreenHelix gateway (read/write access to purchased API tools only)AGENT_SIGNING_KEY: Cryptographic signing key for agent identity (Ed25519 key pair for request signing)STRIPE_API_KEY: Stripe API key for card payment processing (scoped to payment intents only)
You have a CrewAI crew that researches, writes, and edits a report. A LangGraph pipeline that routes customer queries through specialist agents. An AutoGen group chat where a planner, coder, and reviewer collaborate on software. These orchestration frameworks solve the coordination problem: which agent does what, in what order, with what context. But they all stop at the same cliff edge. When the research agent needs to hire an external data provider, who pays? When the coding agent subcontracts a testing agent from a marketplace, how does the buyer know the tests actually ran before funds move? When the planner distributes a $500 budget across five sub-agents, how do you prevent one compromised agent from draining the entire pool? Orchestration without commerce is a team that can collaborate but cannot transact. This guide bridges that gap. Using the GreenHelix A2A Commerce Gateway's 128 tools, you will add escrow-protected payments, marketplace discovery, reputation-gated hiring, and automated dispute resolution to CrewAI, LangGraph, and AutoGen workflows. Every pattern is production-ready Python code you can copy into your project today.