The control layer for AI action
Between what AI decides and what it is allowed to do.
Barzel is the intelligence and control infrastructure that sits between AI agents and the systems they act on — enforcing policy before execution, requiring approval on sensitive operations, and writing every decision to an auditable record.
- Identity verified
- Policy matched · FIN-04
- Risk assessed · elevated
- Decision written to audit record
Illustrative interface · not live telemetry
Principle
Autonomy without control is a liability.
AI has moved from answering questions to taking actions. The moment an agent can move money, change a record or call an API, the question stops being how capable it is and starts being what it is permitted to do — and who can prove it afterwards.
Every product we ship starts from that sentence.
Flagship ecosystem
The Barzel architecture
Four products form one governed path between AI systems and the platforms that run a business. Each stands alone. Together they are a control plane.
Layer 01
AI Models & AI Agents
Barzel intelligence & control layer
Governance & Security
BarzelVault
Evaluates AI actions before sensitive operations execute: policy enforcement, approval workflows, risk assessment and an auditable record of what agents were allowed to do.
Explore BarzelVault →Governed path
- agent
- vault.policy
- approval
- enterprise system
- audit record
Products
Four products, published and callable
01 · AI action firewall
BarzelVault
Control what AI agents are allowed to do, before they do it.
An AI governance and security layer for agent and MCP environments. Evaluates every action against policy, escalates the sensitive ones for human approval, scores risk, and keeps an auditable record of what was permitted and why.
Explore BarzelVault →02 · AI governance control plane
Barzel Central Gateway
One control layer for every MCP server your agents reach.
Centralises AI capabilities, resources, routing, policies, approvals and access across an entire estate — so adding a server does not mean adding another ungoverned door.
Explore Barzel Gateway →Policy evaluated at the edge
03 · Intelligent financial operations
Barzel FinOps Atlas
Cost intelligence for technology that now spends on its own.
Financial operations intelligence for understanding technology spending, surfacing optimisation opportunities, analysing financial risk and strengthening cost governance across an AI estate.
Explore FinOps Atlas →Cost attributed per outcome, not per invoice
04 · Intelligent business operations
BarzelOps
Connect AI to the systems that actually run the business.
Lets governed agents interact with applications, workflows and operational systems — moving from AI that provides answers to AI that participates safely in real business processes.
Explore BarzelOps →Availability
No sales call between you and the protocol.
Every Barzel server speaks Streamable HTTP with JSON-RPC 2.0 framing. There is no proprietary SDK to install and no bespoke integration to commission.
Common questions
Answered before you ask
What does Real Biz Digital do?
Real Biz Digital builds the Barzel ecosystem: five Model Context Protocol servers that govern, secure and audit what AI agents are allowed to do. Founded in 2018 by Mark Alex. All five servers are published, callable and documented today.
What is an MCP server?
A Model Context Protocol server exposes tools, resources and prompts to an AI client over a standard interface, so any compliant client can use them without a bespoke integration. Barzel servers speak Streamable HTTP with JSON-RPC 2.0 framing — there is no proprietary SDK to install.
Which Barzel MCP servers are available?
Five. BarzelVault is an action firewall with seven deterministic policy outcomes. Barzel Central Gateway governs every MCP server your agents reach. Barzel FinOps Atlas assembles financial evidence. BarzelOps executes operational work across five business systems. Barzel Scripture Intelligence is a free public server with 54 tools.
Is there a free Barzel MCP server I can try now?
Yes. Barzel Scripture Intelligence is free and unmetered at scripture-intelligence-server.mcpize.run with no signup and no key. Central Gateway, FinOps Atlas and BarzelOps also have free tiers on their marketplace listings.
What is AI agent governance, and why does it need its own layer?
Authentication proves who is calling. Governance decides whether the specific action they are asking for may happen — reading the operation’s sensitivity, value, destination and blast radius rather than the wording of the request. An agent with a valid credential can still do enormous damage, which is why access control alone does not cover it.
How do I connect an MCP client to a Barzel server?
Subscribe on the product’s marketplace listing to get an endpoint and key, point your client at it over HTTPS with a bearer token, then call tools/list to see what that server exposes. Full detail is in the developer documentation.
Everything above is already callable.
Start with the free tier of Barzel Central Gateway and put a policy in front of an agent this afternoon. Or send a security questionnaire — it reaches the founder and the engineer who built the product.