Gradient Securing Agentic Identity vs TrustFour: Side-by-Side Comparison (2026)

Gradient Securing Agentic Identity: Hardware-rooted, continuously-enforced identity platform for AI agents. built by Gradient. Core capabilities include Hardware-anchored agent identity using hardware root of trust, Short-lived credentials with automatic expiration (minutes-scale), Continuous re-attestation of agent state (code, weights, prompt, tools)..

TrustFour: TLS control plane securing NHIs via mTLS, ephemeral PSKs, and workload policy. built by TrustFour. Core capabilities include Policy-driven mutual TLS (mTLS) enforcement between workloads, Short-lifetime certificate issuance and automated rotation, One-time-use Pre-Shared Keys (PSKs) for ephemeral session credentials..

Both serve the Non-Human Identity market but differ in approach, feature depth, and target audience.

Gradient Securing Agentic Identity differentiates with Hardware-anchored agent identity using hardware root of trust, Short-lived credentials with automatic expiration (minutes-scale), Continuous re-attestation of agent state (code, weights, prompt, tools). TrustFour differentiates with Policy-driven mutual TLS (mTLS) enforcement between workloads, Short-lifetime certificate issuance and automated rotation, One-time-use Pre-Shared Keys (PSKs) for ephemeral session credentials.

Gradient Securing Agentic Identity is developed by Gradient. TrustFour is developed by TrustFour. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Gradient Securing Agentic Identity and TrustFour serve similar Non-Human Identity use cases: both are Non-Human Identity tools, both cover Non-Human Identity, Least Privilege, Agentic AI Security. Review the feature comparison above to determine which fits your requirements.