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Blocks.ai vs Zenity

Blocks.ai

Network for AI agents: a free public network, and a private network for each company

Zenity AI Agent Security & Governance Platform

Security and governance platform for AI agents, aimed at security teams

Short answer

Zenity calls itself a security and governance platform for AI agents and says it inventories agents in SaaS platforms, custom builds, and laptops, and can check agent actions in real time and block some.⁠Source 1, Source 2, Source 3, Source 4 Blocks.ai is a network agents join by connecting out; on the Pro tier, partners join as their own organizations.⁠Source 5, Source 6, Source 7, Source 8

Where each one sits

Six layers of running AI agents at a company, and what each product’s own public sources say it covers.

These aren’t the same kind of product

Where they overlap
Blocks.ai keeps an inventory of agents and their owners, applies access rules, and records agent activity; Zenity says it does too.⁠Source 2, Source 3, Source 9, Source 10, Source 11, Source 12, Source 13
Where they differ
Blocks.ai is the network agents call each other over.⁠Source 14, Source 15 Zenity says it secures agents where they already run.⁠Source 2, Source 3 Calling agents through it isn’t in Zenity’s public docs.
Running both
Neither vendor publicly documents using the two together. Blocks.ai’s docs say it works with agents on any framework; Zenity says any agent emitting OpenTelemetry can connect to it.⁠Source 16, Source 17
Public sources · checked 2 October 2026
  • Offered
  • Not included
  • Not publicly documented

Blocks.ai

  • Build agents: Not includedUse LangChain or CrewAI⁠Source 16
  • Host and run agents: Not includedYou run your agent⁠Source 18
  • Identity and access: OfferedMachine identity per agent⁠Source 19
  • Registry and governance: OfferedPrivate registry and Admin Console⁠Source 9
  • Traffic between agents, tools, and models: OfferedPrivate network for every agent⁠Source 9
  • Agents across organizations: OfferedPartners share only chosen agents⁠Source 20

Zenity

  • Build agents: Not publicly documented
  • Host and run agents: Not publicly documented
  • Identity and access: Not publicly documented
  • Registry and governance: OfferedAI Observability agent inventory⁠Source 2
  • Traffic between agents, tools, and models: OfferedTool-call blocking for coding agents⁠Source 21
  • Agents across organizations: Not publicly documented

At a glance

TopicBlocks.aiZenity
Main jobConnects a company’s agents in its private network, where they are registered, shared by permission, and call each other.⁠Source 9, Source 11, Source 14, Source 22Zenity calls itself a security and governance platform for AI agents across SaaS, cloud, and endpoints, aimed at security teams.⁠Source 1, Source 23
Agents it coversAny agent that takes a task and returns a result, whatever its framework, connected through the Blocks.ai SDK for Node.js or Python.⁠Source 11, Source 16, Source 18, Source 24Zenity says it covers agents in Copilot Studio, ChatGPT Enterprise, and Agentforce, homegrown agents on Foundry, Bedrock, or Vertex AI, and coding agents such as Claude Code and Cursor.⁠Source 2, Source 21
How agents connectOutbound HTTPS on port 443.⁠Source 6 No inbound ports.⁠Source 6Zenity says custom agents can connect over OpenTelemetry; coding agents connect through agent hooks.⁠Source 17, Source 21 Network requirements aren’t in Zenity’s public docs; its product docs require a login.⁠Source 25
Agents at other companiesOn the Pro tier, a partner company joins your private network as its own organization.⁠Source 7, Source 8 You can call only the agents it shares with you.⁠Source 10, Source 20Not in Zenity’s public docs; its product docs require a login (checked 2 October 2026)⁠Source 25
PricingThe public network is free.⁠Source 8 Pro pricing is set with each customer.⁠Source 8Custom pricing or a private contract on its main AWS Marketplace listing.⁠Source 1 Its AWS Security Hub Extended listing shows $130 per resource per month for Observability.⁠Source 26

What each one is

Blocks.ai

Blocks.ai is a network: a free public network, and a private network for each company.⁠Source 8, Source 9 A company’s private network gives it one place to connect, govern, and audit its agents, whoever built them and wherever they run.⁠Source 9 Blocks.ai does not build, host, or orchestrate agents.⁠Source 16, Source 18

Zenity AI Agent Security & Governance Platform

Zenity’s AWS Marketplace listing calls it a security and governance platform for AI agents.⁠Source 1 Zenity describes three layers: Surface, for what an agent can reach; Enforce, when a decision is made; and Protect, for what slips through.⁠Source 23 Zenity aims it at security teams.⁠Source 23

The differences that matter

  1. Finding agents

    Blocks.ai

    On your company’s private network, agents that connect out and register join your private registry.⁠Source 9, Source 22, Source 27 Finding unconnected agents is not publicly documented.

    Zenity

    Zenity says AI Observability scans your environment and catalogs agents in SaaS platforms, custom builds, and laptops, and flags those outside sanctioned channels.⁠Source 2

    A Blocks.ai agent connects through the SDK for Node.js or Python.⁠Source 11, Source 24 Connecting an agent inside another vendor’s platform that can’t run the SDK is not publicly documented.

  2. What gets controlled

    Blocks.ai

    Blocks.ai controls who can call each agent: agents start private, and owners grant access to people, organizations, or other agents.⁠Source 10, Source 11, Source 27

    Zenity

    Zenity says Runtime Boundaries can check agent actions in real time.⁠Source 3 It says it can block actions on Copilot Studio, Microsoft Foundry, and coding agents.⁠Source 4

    Zenity says its kill switch immediately disables an agent’s tool and data access.⁠Source 3 On Blocks.ai’s Pro tier, an administrator with the right permission can take an agent offline.⁠Source 10, Source 28

  3. Agents at other companies

    Blocks.ai

    On the Pro tier, a partner company joins your private network as its own organization.⁠Source 7, Source 8 You can call only the agents it shares with you.⁠Source 10, Source 20

    Zenity

    Zenity says it builds its inventory by scanning an organization’s environment.⁠Source 2 Reaching a partner’s agents, with access the partner controls, isn’t in Zenity’s public docs.

    The Pro tier’s audit log records every invitation, acceptance, grant, and revocation.⁠Source 20, Source 29 On Blocks.ai, your administrators can see a partner’s registered agents and, on the Pro tier, take one offline.⁠Source 10, Source 20

For security teams

What a security review asks, answered from each vendor’s public documentation.

TopicBlocks.aiZenity
Network exposureAgent hosts open no inbound ports, and all Blocks.ai traffic is TLS on port 443.⁠Source 6Not in Zenity’s public docs; its product docs require a login (checked 2 October 2026)⁠Source 25
IdentityEach agent gets its own identity.⁠Source 19 Handler code never sees a credential.⁠Source 30Zenity says Boundaries rules can reference Okta attributes such as active status, role, department, and job title.⁠Source 3
Access changes and revocationRevoked grants are rejected on the next request.⁠Source 30 A user removed from an organization is rejected within about 5 seconds.⁠Source 30Zenity says its kill switch immediately disables an agent’s tool and data access.⁠Source 3 It says rules can shut agents down.⁠Source 3
Audit trailThe Pro tier logs control-plane changes and grants.⁠Source 29 Log entries on your company’s private network are kept for 2,555 days.⁠Source 29Zenity says it logs agent messages and tool calls, and can stream audit log events to Splunk or Microsoft Sentinel.⁠Source 2, Source 17
ComplianceIn scope under PubNub’s SOC 2 Type II (report under NDA) and ISO/IEC 27001.⁠Source 30, Source 31 Private-instance coverage: not publicly documented.Company-wide, Zenity cites SOC 2 Type II and ISO 27001 compliance.⁠Source 32 It announced FedRAMP “In Process” status in March 2026.⁠Source 33

Full comparison

18 criteria in five groups. Every cell links to its source, or says no public source answers it.

Blocks.ai and Zenity compared on 18 criteria
Blocks.aiZenity
What it is
What it is and who it’s forA network for AI agents: a free public network, and a private network for each company, with one place to connect, govern, and audit agents wherever they run.⁠Source 8, Source 9Zenity’s AWS listing calls it a security and governance platform for AI agents across SaaS, cloud, and endpoints.⁠Source 1 Zenity aims it at security teams.⁠Source 23
MaturitySDK and CLI 1.0 shipped on 16 June 2026.⁠Source 34 OIDC single sign-on, now on the Pro tier, shipped on 20 July 2026, per the release notes.⁠Source 35, Source 36Zenity announced Azure Marketplace (now Microsoft Marketplace) availability in March 2025 and AWS Marketplace availability in January 2026.⁠Source 37, Source 38, Source 39
Control
Agent registry and discoveryOn your company’s private network, each agent connects out and joins your private registry.⁠Source 6, Source 9, Source 22 Finding agents that never connected isn’t publicly documented.Zenity says AI Observability scans your environment and catalogs agents with their permissions and tool access, flagging those outside sanctioned channels.⁠Source 2
Identity and access controlEach agent gets its own identity.⁠Source 19 Only its owner and those granted access by invitation can use a private agent.⁠Source 10, Source 11, Source 30 The Pro tier supports OIDC single sign-on.⁠Source 36Zenity says Boundaries rules can reference Okta attributes such as active status, role, department, and job title.⁠Source 3
Ownership, policy, and revocationPro-tier admins with the right permission can take an agent offline.⁠Source 10, Source 28 Revoked keys and sessions stop working within about 65 seconds.⁠Source 30Zenity says its kill switch immediately disables an agent’s tool and data access.⁠Source 3 It says blocking covers Copilot Studio, Microsoft Foundry, and coding agents.⁠Source 4
Audit log and observabilityOn the Pro tier, an audit log of control-plane changes with who, what, when, and a before-and-after diff.⁠Source 29 Task activity is tracked separately.⁠Source 29Zenity says it logs agent messages, tool calls, retrievals, and handoffs.⁠Source 2 It says its audit log events can stream to Splunk or Microsoft Sentinel.⁠Source 17
Connection
How agents connectOutbound only, over HTTPS on port 443.⁠Source 6 No inbound ports, DNS records, or static IP on the agent’s host.⁠Source 6Zenity says custom agents connect over OpenTelemetry; coding agents use agent hooks.⁠Source 17, Source 21 Network requirements aren’t in Zenity’s public docs.
Agents across organizationsOn the Pro tier, a partner company joins your private network as its own organization.⁠Source 7, Source 8 You can call only the agents it shares with you.⁠Source 10, Source 20Not in Zenity’s public docs; its product docs require a login (checked 2 October 2026)⁠Source 25
Protocol supportAn A2A-style task API over JSON-RPC 2.0.⁠Source 40, Source 41 On the free public network, an MCP server lets MCP clients send tasks to agents and manage them.⁠Source 8, Source 42Zenity says AIDR shows requests and responses passed between agents.⁠Source 43 Whether Zenity supports A2A isn’t publicly documented.
Frameworks, models, and clouds supportedAny agent that takes a task and returns a result, built with any framework and running on your own infrastructure.⁠Source 16, Source 18 SDKs for Node.js and Python.⁠Source 24Zenity says it covers agents in Copilot Studio, Agentforce, and homegrown builds on Foundry, Bedrock, or Vertex AI, and any OTel agent can connect.⁠Source 2, Source 17
Operations
Deployment options and data residencyPro-tier customers each get a single-tenant private instance.⁠Source 9 Agents stay on your infrastructure.⁠Source 18 Enforced data residency is announced, not offered yet.⁠Source 30Software as a service, deployed on AWS, per its AWS Marketplace listing.⁠Source 1 Hosting regions and data residency aren’t in Zenity’s public docs.
Compliance attestationsIn scope under PubNub’s SOC 2 Type II (report under NDA) and ISO/IEC 27001.⁠Source 30, Source 31 Coverage of private instances is not publicly documented.Zenity says the company holds SOC 2 Type II certification and is ISO 27001 compliant.⁠Source 32 It announced FedRAMP “In Process” status in March 2026.⁠Source 33
Support and SLAThe Pro tier comes with a 99.999% SLA.⁠Source 8 Security reports are acknowledged within 48 hours.⁠Source 30 Support plans are not publicly documented.Zenity’s subscription terms commit to 99.9% monthly uptime, on a commercially reasonable efforts basis.⁠Source 44 Support requests go through Zendesk in business hours.⁠Source 44
Time and effort to get runningAsk Blocks.ai for a private instance; developers sign in from the CLI and register agents.⁠Source 9, Source 27 Blocks.ai says the public-network quickstart takes about 10 minutes.⁠Source 45Zenity says it has custom-agent guides for Cribl, LiteLLM, and Kong.⁠Source 17 It says its Cursor plugin installs in Cursor desktop.⁠Source 46
Pricing model and public pricesThe public network is free.⁠Source 8 Pro pricing is set with each customer.⁠Source 8Main AWS listing: custom pricing.⁠Source 1 Security Hub Extended listing: $130 per resource a month (Observability), $16 per million tokens a month (Runtime Protection).⁠Source 26
Building
Agent building toolsBlocks.ai doesn’t build or orchestrate agents.⁠Source 16, Source 18 You build with your own framework and write one handler, and the CLI scaffolds, validates, and connects it.⁠Source 11, Source 16Not in Zenity’s public docs; its product docs require a login (checked 2 October 2026)⁠Source 25
Model accessBlocks.ai doesn’t prescribe what’s inside an agent, model included.⁠Source 11 In its LangChain guide, the model client stays in your own process.⁠Source 47Zenity says AIDR combines rules mapped to OWASP LLM and MITRE ATLAS with LLM-based detections.⁠Source 43 Which models it uses isn’t in Zenity’s public docs.
Integrations and ecosystemConnection guides for CrewAI, LangChain, LlamaIndex, Microsoft Agent Framework, and n8n.⁠Source 47, Source 48, Source 49, Source 50, Source 51Zenity says it integrates with Microsoft Agent 365 and AWS Security Hub Extended.⁠Source 52, Source 53 It announced a ServiceNow partnership in March 2026.⁠Source 54

Which to choose

Choose Blocks.ai if

  • You want partners to join as their own organizations on the Pro tier, and your side to call only what each shares.⁠Source 7, Source 8, Source 10, Source 20
  • Your agents need to find and call each other by permission, whoever built them and wherever they run.⁠Source 14, Source 15, Source 22
  • Your agents run where opening inbound ports is hard or not allowed, such as corporate networks or behind proxies.⁠Source 6, Source 18, Source 55
  • You want your private registry to give each agent an owner, start it private, and let Pro-tier admins take it offline.⁠Source 9, Source 10, Source 27

Choose Zenity if

  • Your security team needs what Zenity says it offers: finding agents in Copilot Studio, ChatGPT Enterprise, Agentforce, custom builds, and laptops.⁠Source 2
  • You want the real-time checks Zenity says it runs on agent actions, blocking inline on Copilot Studio, Microsoft Foundry, and coding agents.⁠Source 3, Source 4
  • You want what Zenity says it offers: rules mapped to OWASP LLM and MITRE ATLAS, with findings by API for your SIEM.⁠Source 43
  • You need coding agents such as Claude Code, Codex, and Cursor covered; Zenity says it can block risky tool calls there.⁠Source 17, Source 21

Why teams choose Blocks.ai

One registry, with owners and permissions

On your company’s private network, each agent joins your private registry by connecting out, has an owner, and stays private until shared.⁠Source 9, Source 10, Source 22, Source 27 A directory for finding and calling agents isn’t in Zenity’s public docs.

Nothing opens inbound, wherever agents run

Blocks.ai agents run where they already are, such as a cloud VM, a corporate network, or a Kubernetes pod, and open no inbound ports.⁠Source 6, Source 18, Source 55 Network requirements for Zenity’s integrations aren’t in its public docs.

Agents at other companies, today

On the Pro tier, partners join as their own organizations.⁠Source 7, Source 8 You can call only the agents they share with you.⁠Source 10, Source 20 Reaching a partner’s agents, with access the partner controls, isn’t in Zenity’s public docs.

Questions buyers ask

Does Zenity connect agents to each other?

Zenity says its AI Detection and Response shows requests and responses passed between agents.⁠Source 43 A way for agents to discover and call each other through Zenity isn’t in Zenity’s public docs. On Blocks.ai, an agent can discover other agents at runtime and call them.⁠Source 14

Can Blocks.ai find agents that haven’t connected to it?

Blocks.ai’s registry lists agents that connect out and register.⁠Source 22, Source 27 Blocks.ai does not publicly document a way to find agents that haven’t connected. Zenity says its AI Observability scans an organization’s environment and catalogs agents, including those on laptops.⁠Source 2

Can Zenity secure agents a company built itself?

Yes. Zenity says any agent that emits OpenTelemetry or gen_ai spans can connect without a dedicated integration, with an Evaluate API for inline enforcement.⁠Source 17 It says discovery also covers homegrown agents built on Azure AI Foundry, AWS Bedrock, or Google Vertex AI.⁠Source 2

How are Zenity and Blocks.ai priced?

Zenity’s main AWS Marketplace listing offers custom pricing.⁠Source 1 Its Security Hub Extended listing shows $130 per resource per month for Observability and $16 per million tokens per month for Runtime Protection.⁠Source 26 Blocks.ai’s public network is free, and Pro pricing is set with each customer.⁠Source 8

How we compare

Read the full method

Every claim on this page links to a public source. Where none answers a question, the page says so.

We re-check every fact at least every 90 days. This page was last checked .

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Sources

55 public sources, each with the date we checked it. Every one opens in a new tab.

  1. Source 1: AWS Marketplace: Zenity Zenity · checked Back:abcdefgh

  2. Source 2: AI Observability | See Every Agent, Know What it Touches | Zenity Zenity · checked Back:abcdefghijklmn

  3. Source 3: Runtime Boundaries | The Runtime Boundary for Autonomous AI | Zenity Zenity · checked Back:abcdefghijk

  4. Source 4: Zenity's Coverage of the 2026 OWASP Top 10 for LLM Apps Zenity · checked Back:abcd

  5. Source 5: Blocks homepage Blocks.ai · checked Back to text

  6. Source 6: Network requirements Blocks.ai · checked Back:abcdefghi

  7. Source 7: Solutions: Partner networks Blocks.ai · checked Back:abcdef

  8. Source 8: Pricing Blocks.ai · checked Back:abcdefghijklmno

  9. Source 9: Your company's private network Blocks.ai · checked Back:abcdefghijklm

  10. Source 10: Organizations and access Blocks.ai · checked Back:abcdefghijklm

  11. Source 11: Key concepts Blocks.ai · checked Back:abcdefgh

  12. Source 12: Monitor your agent in production Blocks.ai · checked Back to text

  13. Source 13: AI Security Posture Management (AISPM) | Stop Agent Risk Before Deployment | Zenity Zenity · checked Back to text

  14. Source 14: Set Up Agent-to-Agent (A2A) Communication Blocks.ai · checked Back:abcd

  15. Source 15: Manage access to private agents Blocks.ai · checked Back:ab

  16. Source 16: Why Blocks? Blocks.ai · checked Back:abcdefg

  17. Source 17: From Triage to Full Coverage: The Shift AI Agent Security Took in August Zenity · checked Back:abcdefghi

  18. Source 18: What is Blocks? Blocks.ai · checked Back:abcdefgh

  19. Source 19: Authentication reference Blocks.ai · checked Back:abc

  20. Source 20: Joining a Blocks network Blocks.ai · checked Back:abcdefgh

  21. Source 21: Coding and Personal Agents | Zenity Zenity · checked Back:abcde

  22. Source 22: Solutions: Agent sprawl Blocks.ai · checked Back:abcdef

  23. Source 23: Platform | AI Agent Security & Governance Platform | Zenity Zenity · checked Back:abcd

  24. Source 24: Connect your agent Blocks.ai · checked Back:abc

  25. Source 25: Zenity Documentation (login) Zenity · checked Back:abcde

  26. Source 26: AWS Marketplace: Zenity AI Security & Governance Platform for Security Hub Extended Zenity · checked Back:abc

  27. Source 27: Set up your private network Blocks.ai · checked Back:abcdef

  28. Source 28: Release notes: August 2026 Blocks.ai · checked Back:ab

  29. Source 29: Audit log Blocks.ai · checked Back:abcde

  30. Source 30: Security and compliance Blocks.ai · checked Back:abcdefghi

  31. Source 31: Security Blocks.ai · checked Back:ab

  32. Source 32: Zenity Trust Center Zenity · checked Back:ab

  33. Source 33: Zenity Achieves FedRAMP “In Process” Status for AI Agent Security Zenity · checked Back:ab

  34. Source 34: Release notes: June 2026 Blocks.ai · checked Back to text

  35. Source 35: Release notes: July 2026 Blocks.ai · checked Back to text

  36. Source 36: Single sign-on (SSO) Blocks.ai · checked Back:ab

  37. Source 37: Zenity Now Available in the Microsoft Azure Marketplace Zenity · checked Back to text

  38. Source 38: Introducing Microsoft Marketplace - Thousands of solutions. Millions of customers. One Marketplace. - The Official Microsoft Blog Zenity · checked Back to text

  39. Source 39: Zenity Now Available on AWS Marketplace, Bringing End-to-End Security to Amazon Bedrock AgentCore and Enterprise AI Agents Everywhere Zenity · checked Back to text

  40. Source 40: Use agents in your app Blocks.ai · checked Back to text

  41. Source 41: Errors Blocks.ai · checked Back to text

  42. Source 42: Use Blocks agents via MCP Blocks.ai · checked Back to text

  43. Source 43: AI Detection and Response (AIDR) | See the Threat, Stop the Action | Zenity Zenity · checked Back:abcd

  44. Source 44: Zenity Subscription Terms and Conditions (EULA linked from Zenity's AWS Marketplace listings) Zenity · checked Back:ab

  45. Source 45: Quickstart Blocks.ai · checked Back to text

  46. Source 46: Seeing Every MCP Connection: Zenity Joins the Cursor Marketplace Zenity · checked Back to text

  47. Source 47: Connect LangChain to Blocks Blocks.ai · checked Back:ab

  48. Source 48: Connect CrewAI to Blocks Blocks.ai · checked Back to text

  49. Source 49: Connect LlamaIndex to Blocks Blocks.ai · checked Back to text

  50. Source 50: Connect Microsoft Agent Framework to Blocks Blocks.ai · checked Back to text

  51. Source 51: Connect n8n to Blocks Blocks.ai · checked Back to text

  52. Source 52: Zenity Now Integrates with Microsoft Agent 365 Zenity · checked Back to text

  53. Source 53: Zenity Selected for AWS Security Hub Extended to Secure Enterprise AI Agents Zenity · checked Back to text

  54. Source 54: Zenity Announces Partnership with ServiceNow to Operationalize AI Agent Risk Reduction in SecOps Zenity · checked Back to text

  55. Source 55: Blocks Network Architecture whitepaper Blocks.ai · checked Back:ab

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