Definition
Egress gateway
An egress gateway sits between agent computers and the outside world. It enforces allow/deny rules, injects credentials, filters responses, and audits traffic.
Why it matters
Without egress control, agents exfiltrate data, hit production APIs, or leak secrets into model context.
How Islo helps
Islo Gateway provides per-computer profiles, credential injection, content filters, and per-request audit export.
Why agents need egress control
An agent with a raw network stack can exfiltrate repository contents, hit production databases, or burn through paid API quotas. Egress gateways sit between the agent computer and the internet, enforcing allow lists, injecting short-lived credentials, and logging every request. The agent gets access to GitHub or Stripe without ever seeing the underlying token.
Content filters and audit
Beyond allow lists, gateways can scan response bodies before agents see them. That blocks leaked answers in eval environments and sensitive data in model context. Audit logs export per-request detail — host, path, status, latency — so security reviews can query what happened instead of reconstructing it from chat transcripts.
Keep reading
Common questions
Do agents see API keys?
No. Keys are injected at the gateway; agents get access, not secrets.
Can I block specific hosts?
Yes. Host, path, and method rules in gateway profiles.
What are content filters?
Scan response bodies to block leaked answers or sensitive data before agents see them.
Is audit exported to my SIEM?
Per-request logs can be exported to systems you configure.
Does gateway add latency?
Minimal overhead for most API calls; security tradeoff is usually worth it.