Agent Threat Intelligence Exchange

Notice: This is an educational guide with illustrative code examples. It does not execute code, require credentials, 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.

Your SOC runs 14 threat intel feeds. Three are commercial, four are open-source, and seven are informal Slack-channel exchanges with peers who share IOCs when they remember to. The commercial feeds cost $180,000 per year combined and deliver 40% overlap. The open-source feeds lag by hours. The Slack channels produce high-quality, zero-day-adjacent indicators -- when someone manually copies them over. Meanwhile, your detection engineering team spends 30% of its time deduplicating, normalizing, and validating indicators that arrive in seven different formats. The $10.4 billion threat intelligence market is growing at 12.9% CAGR, but the delivery mechanism has not changed since TAXII 1.0 shipped in 2013. Feeds are still human-negotiated, manually integrated, and priced as annual site licenses regardless of consumption volume. SOCRadar launched its AI Agent Marketplace in early 2025. Google announced agentic defense capabilities across Chronicle and Mandiant. CrowdStrike, Recorded Future, and Anomali are all building agent-based intel distribution. The pattern is clear: threat intelligence is moving from static feeds to agent-to-agent commerce, where autonomous SOC agents discover intel providers, negotiate access terms, pay per indicator or per feed tier, and verify quality through cryptographic reputation chains -- all without a human signing a PO. This guide builds that system from scratch using the GreenHelix A2A Commerce Gateway. You will register threat intel provider and consumer agents, list STIX-formatted IOC feeds on the marketplace, gate access through tiered paywalls, negotiate SLA contracts for delivery latency and freshness guarantees, score intel quality through reputation and claim chains, and handle disputes when a provider delivers stale or fabricated indicators. Every code example runs against the live GreenHelix API. Every pattern maps to a real SOC workflow.

1. The Agent-to-Agent Threat Intel Economy