Control what your AI agents can do.

Models propose actions. K-Block authorizes them.

K-Block sits between your AI agents and the tools they call. A deterministic policy decides every call, and when the policy requires it, a person approves first. Calls run only within the authority they were given and leave a signed receipt that anyone can verify.

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How a tool call is authorized

  1. Agent

    Proposes a tool call through the K-Block Gateway.

  2. Policy

    Decides it deterministically: allow, deny or require approval.

  3. Authorization

    Verifies the agent’s signed authority and, when required, an approver’s signature.

  4. Execution

    The gateway runs exactly the authorized call, nothing more.

  5. Evidence

    A signed receipt records the outcome. Anyone can verify it offline.

  • Works with your MCP servers

    Register upstream servers, expose the tools agents may call, and give each agent its own gateway key.

  • Policy changes without surprises

    Dry-run a call, observe and shadow a new version before you enforce it, and roll back when needed.

  • Built for teams

    Owners, admins and approvers with clear roles, and an append-only audit log of every change.