Comparison · LLM proxy + observability
AgentShield vs
Helicone
Helicone proxies your LLM calls and logs them. AgentShield runs alongside your agent and governs it — no proxy in your hot path.
Feature
AgentShield
Helicone
Architecture
SDK / API
Proxy
Adds latency
0 ms
20-50 ms
Guardrails
Yes
No
EU AI Act
Yes
No
Choose AgentShield when:
- No proxy = no extra latency, no SPOF in your LLM call path
- Guardrails block actions, not just log requests
- Stack-agnostic SDK + REST
Choose Helicone when:
- You want a drop-in proxy with caching
- Your stack is single-LLM-vendor
Try it before deciding.
Run the Stress Test on your agent. 30 seconds. No signup. See if AgentShield fits your stack.