Top Non-Human Identity (NHI) Management Tools for 2026

Non-human identities now outnumber human ones in most enterprises by a wide margin, and the gap keeps growing. Every service account, API key, OAuth token, cloud workload, CI/CD pipeline, and AI agent is an identity that can authenticate, hold permissions, and be abused. The 2025 and 2026 breach wave made the cost obvious: leaked tokens and over-privileged service accounts were the entry point in a large share of cloud incidents.

This guide compares the leading non-human identity (NHI) management tools for 2026, grouped by the job they actually do. If you want the conceptual grounding first, read the technical deep dive on non-human identity in the AI age and the NHI definition in CIAM Compass. For why this is now a board-level problem, see the AI agent identity crisis.

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What counts as a non-human identity

A non-human identity is any credential or identity that belongs to software rather than a person. The category is broad, which is part of why it is hard to govern:

• Service accounts and machine accounts in directories and SaaS apps
• API keys, OAuth tokens, and personal access tokens
• Cloud workload identities, IAM roles, and instance profiles
• TLS and code-signing certificates, SSH keys, and secrets
• CI/CD pipeline credentials and third-party integration tokens
• AI agents and autonomous workflows that call tools and APIs on their own

The last item is the fastest-growing one. As machine identity volume climbs, every new agent multiplies the number of credentials that need discovery, least privilege, and rotation.

What to look for in an NHI management tool

The market splits into a few jobs. Most teams need more than one, so evaluate against the capabilities you are missing rather than a single vendor's full pitch:

• Discovery and inventory: find every NHI across cloud, SaaS, and code, including the ones nobody documented.
• Posture and risk: flag over-privileged, stale, exposed, or orphaned identities and rank them by blast radius.
• Secrets management: store, broker, and rotate secrets so they never sit in code or config.
• Lifecycle and least privilege: provision, right-size, rotate, and decommission automatically.
• Workload and agent identity: issue short-lived, verifiable identity so workloads authenticate without long-lived secrets at all.

Quick comparison

Tool	Category	Best for
Astrix Security	NHI security and governance	SaaS and cloud NHI discovery plus risk remediation
Oasis Security	NHI security and governance	End-to-end NHI lifecycle and posture
Entro Security	NHI security and governance	Secrets-centric NHI discovery and monitoring
Token Security	NHI security and governance	Machine-first identity security across hybrid estates
HashiCorp Vault	Secrets management	Centralized secrets and dynamic credentials
CyberArk Conjur	Secrets management	Enterprise secrets tied to privileged access
Akeyless	Secrets management	SaaS-delivered secrets and key management at scale
Venafi (CyberArk)	Machine identity and certificates	TLS, code-signing, and certificate lifecycle
Keyfactor	Machine identity and certificates	PKI and certificate automation
Aembit	Workload and agent identity	Secretless workload-to-workload access
SPIFFE / SPIRE	Workload and agent identity	Open standard for workload identity
GitGuardian	Secrets detection	Finding leaked secrets in code and pipelines

NHI discovery, posture, and governance

This category is the newest and the one most teams are missing. These platforms inventory every non-human identity, score the risk, and drive remediation. They are the closest thing to a control plane for NHI.

Astrix Security

Astrix focuses on discovering non-human identities across SaaS, cloud, and code, then mapping their access and flagging risky, over-privileged, or untrusted connections. It is a strong fit when third-party app integrations and OAuth grants are your biggest unknown.

Oasis Security

Oasis positions itself around the full NHI lifecycle, from discovery and posture to rotation and decommissioning. Teams that want governance and remediation in one place, rather than visibility alone, tend to shortlist it.

Entro Security

Entro takes a secrets-centric view, tracing where secrets live, how they are used, and which NHIs they belong to. It pairs well with organizations whose primary exposure is sprawling secrets across vaults, code, and config.

Token Security

Token Security pushes a machine-first identity security model across hybrid environments, with emphasis on the identities behind AI and automation. Consider it when agent and workload identity is becoming the center of gravity.

Secrets management for machine identities

Secrets management is the established core of NHI. If credentials still live in code, environment variables, or config files, this is where to start.

HashiCorp Vault

Vault is the reference implementation for centralized secrets, encryption as a service, and dynamic, short-lived credentials. It is powerful and broadly adopted, with the tradeoff that self-managed Vault carries real operational overhead.

CyberArk Conjur

Conjur brings secrets management into CyberArk's privileged access ecosystem, which suits enterprises that already run CyberArk for human privileged access and want one governance model across both. See the broader privileged access management landscape for context.

Akeyless

Akeyless delivers secrets management, certificates, and key management as SaaS, which lowers the operational burden of running your own vault while scaling across multi-cloud estates.

Machine identity and certificate management

Certificates and keys are non-human identities too, and an expired or mis-issued certificate causes outages and trust failures at the worst possible moment.

Venafi (now part of CyberArk)

Venafi is the long-standing leader in machine identity management for TLS, code-signing, and certificate lifecycle. CyberArk acquired Venafi in 2024, folding certificate-based machine identity into its broader identity security platform.

Keyfactor

Keyfactor automates PKI and certificate lifecycle at scale, which matters as short-lived certificates and crypto-agility move from nice-to-have to mandatory.

Workload and agent identity: access without long-lived secrets

The most durable answer to NHI risk is to stop issuing long-lived secrets at all. These tools give workloads and agents short-lived, verifiable identity instead.

Aembit

Aembit brokers secretless, policy-based access between workloads, so a service or agent proves who it is and gets just-in-time access without a stored credential. It is a strong fit for the agent-to-API access problem.

SPIFFE / SPIRE

SPIFFE is the open standard for workload identity, and SPIRE is its production runtime. If you want a vendor-neutral foundation that issues cryptographic workload identity across clusters and clouds, this is it. The tradeoff is that you operate it yourself.

Teleport

Teleport provides identity-based access to infrastructure (servers, Kubernetes, databases) using short-lived certificates, which removes standing credentials for both humans and machines.

Secrets detection

GitGuardian

Before you can manage NHIs, you have to find the credentials already leaking. GitGuardian scans code, pipelines, and other surfaces for exposed secrets, which makes it a common first purchase that feeds the rest of an NHI program.

How to choose for your stage

• Secrets are scattered in code: start with detection (GitGuardian) plus a vault (Vault, Akeyless, or Conjur).
• You cannot see your NHIs: lead with an NHI security platform (Astrix, Oasis, Entro, or Token Security) for discovery and posture.
• Certificates cause outages: add machine identity management (Venafi or Keyfactor).
• You are deploying AI agents: prioritize workload and agent identity (Aembit, SPIFFE/SPIRE) so agents authenticate without standing secrets. Pair it with the patterns in authorization for agentic workflows.

Most mature programs combine a discovery and posture layer, a secrets layer, and a workload-identity layer, governed under one policy. The goal is the same as human IAM: every identity is known, least-privileged, short-lived, and revocable.

Frequently Asked Questions

What is non-human identity (NHI)?

A non-human identity is any credential or identity that belongs to software rather than a person: service accounts, API keys, OAuth tokens, cloud workload roles, certificates, secrets, and AI agents. In most enterprises NHIs outnumber human identities many times over.

Why do non-human identities need dedicated management tools?

Traditional IAM was built for humans, with logins, MFA, and joiner-mover-leaver workflows. NHIs have no person behind them, are created constantly by developers and automation, often hold excessive permissions, and rarely get rotated or decommissioned. Dedicated tools handle that scale and lifecycle.

What is the difference between NHI management and secrets management?

Secrets management stores and rotates the credentials that NHIs use. NHI management is broader: it discovers every non-human identity, scores its risk and permissions, governs its lifecycle, and increasingly replaces long-lived secrets with short-lived workload identity. Secrets management is one layer inside an NHI program.

How do AI agents change non-human identity security?

AI agents authenticate, call tools, and access data on their own, often chaining actions across systems. Each agent is a non-human identity that needs scoped, short-lived, auditable access. The safest pattern is workload identity and just-in-time access rather than handing agents long-lived API keys.

Do existing IAM tools cover non-human identities?

Partially. Cloud IAM and PAM tools manage some machine credentials, but they were not designed to discover and govern the full sprawl of NHIs across SaaS, code, and pipelines. That gap is why a dedicated NHI security category emerged.