Fabraix Red Team Playground
Free · Open source
AI security researchers
An AI agent that approves a procurement request it shouldn't, leaks a customer's SSN to a third-party API, or issues a duplicate refund doesn't fail loudly — it fails silently, and you find out in the audit. Gateplex sits between your agents and the outside world, intercepting actions in real time before they land.
$199/month · Free tier: 3 agents, 1 project, 5,000 intercepts/month, basic audit log, community support · Checked Jun 11, 2026
Gateplex is governance middleware: it does not run your agents, it watches them. The vendor describes it as a policy enforcement layer that intercepts agent actions — API calls, approvals, data sends — checks them against defined rules, and blocks or flags violations before execution completes. That distinction matters for regulated environments where post-hoc logging is not enough. The free tier covers three agents and a capped intercept volume per month, which fits a proof-of-concept but runs short the moment a second team deploys. Beyond that ceiling, teams move to a paid tier or hit a wall.
Bottom line: Gateplex is the right call when a procurement or finance agent needs a compliance layer that generates audit-ready evidence for legal review — it is the wrong architecture if you need self-hosted deployment or if your agents run at intercept volumes the free tier cannot absorb.
Free tier with basic features
Most popular tier for production use
For organisations deploying AI agents in production environments with compliance, data sovereignty, or scale requirements
View full pricing on gateplex.ai →
Pricing may have changed since last verified. Check the official site for current plans.
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More options in Guardrails & Safety. Compare pricing, platforms, and features side by side.
Free · Open source
AI security researchers
Freemium
Legal professionals handling confidential cases
Most agent governance strategies amount to writing everything to a log and reviewing it later — which means the bad action already happened. Gateplex takes a different position: it operates as middleware that intercepts agent actions at the moment of execution, evaluates them against configured policies, and enforces a block or approval before the action completes. The core workflow, as the vendor describes it, is intercept-evaluate-enforce: an agent attempts an action, Gateplex checks it against rules (spending limits, PII filters, duplicate transaction detection), and either passes or stops it. The audit trail is generated as a byproduct of that real-time check, not as a separate logging step.
The differentiating feature the vendor emphasizes is compliance-formatted evidence generation. For teams subject to EU AI Act obligations — particularly the transparency and high-risk system requirements — Gateplex produces audit artifacts structured for legal and compliance review, not just raw logs. That is a different output than what a general-purpose observability tool generates, and for procurement or finance agents making decisions that regulators may later scrutinize, the formatting difference is the whole point.
Gateplex fits best inside organizations that have already decided to deploy agents in regulated workflows and need a governance wrapper around them — not organizations still evaluating whether to use agents at all. Where it breaks: the platform is cloud-only, with no self-hosted option documented on the vendor page, which disqualifies it immediately for teams with data residency requirements that prohibit routing sensitive agent actions through external infrastructure. The free tier’s intercept cap also means teams with more than three agents or meaningful production traffic will hit the ceiling quickly.
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