Holonym Foundation alternatives

Tools that do what Holonym Foundation does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Holonym Foundation.

Read 2026-10-20

With a free plan or free to use: AlfaNest Labs, OpenBox, Licentric.

10 alternativesUnlike Holonym Foundation

#1
AlfaNest Labs Security MCP · sign-in
Scans OpenAPI specifications for security risks and provides agent guardrails for AI systems.
Free planAlso: Security
14
Active
From ≈ $5.60 once
2024
#2
Oso Cloud Policy AI Security
Evaluates application authorization rules written in the Polar policy language through an API, deciding which users or agents can access what.
Also: SecurityMore widely used
4.4k
Active
From $15/user/mo
#3
AgentID Security
Provides email-based identity and sign-in for AI agents to access apps independently.
More widely used
Little sign of use
Active
#4
Skyflow Security
Encrypts and controls access to sensitive data across enterprise systems and AI applications at runtime.
Also: Security, ComplianceMore widely used
1.4k
Active
Contact sales
2019
#5
ANHA Registry Security MCP · sign-in
Issues signed, verifiable identity handles for AI agents, with consent-scoped access, human approval gates and signed delivery to business backends.
More widely used
1
Active
#6
Take Interest Security
Audits AI systems for security risks and verifies they follow your approval rules.
Also: SecurityMore widely used
26 linking domains
Active
2025
#7
Transmit Security Security
Detects autonomous agents accessing applications and enforces runtime access policies based on agent classification.
Also: Security, AgentsMore widely used
2.3k
Active
Contact sales
2014
#8
OpenBox Developer tools
Enforces identity, authorization, and policy controls across agent actions at runtime with cryptographic verification.
Free planAlso: Security, Agents
46
Active
Free plan
2025
#9
Barndoor AI Security
Routes AI model and agent requests through access controls, data-loss prevention and audit logging before they reach the model.
Also: SecurityMore widely used
6.5k
Active
Contact sales
#10
Licentric Security
Issues identity credentials, budgets, and policies for autonomous AI agents via REST API.
Free planMore widely used
1
Maintained
From $5/mo

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How this list is made: the words Holonym Foundation is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.