Hawcx
Choose Hawcx when
Every agent action has to trace back to a person with cryptographic proof, sensitive actions should wait for a person to approve, and a captured call must fail if it’s replayed.
Hawcx vs 
Keycard for AI agent authentication
Both give AI agents credentials at runtime instead of standing secrets. Hawcx also roots each agent in a person’s phishing-resistant sign-in, carries proof of who delegated every action, and makes each grant single-use.
Hawcx vs Keycard, side by side
Nine capabilities: the six most vendors now cover, and the three that carry a person’s authority to each action.
| Capability | Hawcx | |
|---|---|---|
| The basics | ||
| DiscoveryFinds the agents already running across your tools. | Partial | Not covered |
| Zero standing credentialsAgents hold no long-lived secrets; access is issued when it’s needed. | Full | Full |
| Agent authenticationEach agent proves its own identity. | Full | Full |
| Authorization policyRules decide what each agent may do. | Full | Full |
| Runtime enforcementEvery call is checked before it runs. | Full | Full |
| Governance and auditA record of every agent, its owner and its actions. | Full | Partial |
| From the person to the action | ||
| Phishing-resistant human root of trustThe agent’s authority starts with a person’s phishing-resistant sign-in. | Full | Not covered |
| Proof of delegation on every actionEach action carries proof that a specific person delegated it. | Full | Partial |
| A single-use grant for every tool callA captured call can’t run twice. | Full | Not covered |
FullPartialNot coveredBased on public materials, September 2026.
Which one fits?
Choose Keycard when
Your agents mainly need runtime credentials and policy to reach your APIs and SaaS, and your identity provider already handles how people sign in.