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Gatekeeper

github.comInfrastructure

PulseGate's liveness check found it on 6 Oct 2026; it has been in the index since 6 Sep 2026. How this is checked

Gatekeeper is an open-source policy enforcement tool for AI agent tool calls. It evaluates requests and allows, approves, or denies them while recording an audit trail, with CLI and developer integration options.

Inferred · not functionally tested

Open SourceCLIAPISelf-hosted
Gatekeeper preview
Visit github.com

Overview

6 features

Purpose: Preventing unauthorized or unsafe AI agent tool calls while maintaining an auditable record of decisions.

Inferred · not functionally tested

Audience: developers building AI agents and agent platforms

Inferred · not functionally tested

Functions: agents, monitoring

Inferred · not functionally tested

Interfaces: API: indicated (inferred, not tested) · MCP: indicated (inferred, not tested) · CLI: indicated (inferred, not tested) · Self-hosting: indicated (inferred, not tested)

Recorded constraints: pricing: open_source · license: Open Source · platforms: API, CLI · deployment: cli, api_only, self_hosted

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: github.com. These links do not verify the individual claims.

Gatekeeper is an AI security & guardrails project. Inferred · not functionally tested: It focuses on preventing unauthorized or unsafe AI agent tool calls while maintaining an auditable record of decisions. Inferred · not functionally tested: Gatekeeper is an open-source project aimed at developers building AI agents and agent platforms. Basis unknown · not verified: Gatekeeper is open source under the Open Source license. Basis unknown · not verified: It runs on the command line and API, and it can be self-hosted.

It is developed by Runestone Labs. Inferred · not functionally tested: Key capabilities include policy enforcement, allow or deny rules, and approval workflows. Inferred · not functionally tested: Catalogued interfaces include an MCP server.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Policy enforcement
  • Allow or deny rules
  • Approval workflows
  • Audit trails
  • Tool-call controls
  • CLI interface

Topics: Inferred · not functionally tested

Tags
agent-permissionstool-call-policyapproval-workflowsaudit-trailsmcp-security
AI capabilities
TextStructured
Inference: Local

JSON profile · Text profile · Access guide

Built with & integrations

Connectors
MCP
Runs on
CLIAPI-onlySelf-hosted

Trust & compliance

License
Open Source
Public signals
HTTPSOpen SourceFree tier

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed6 Sep · 01:35 UTC
    io.github.Runestone-Labs/gatekeeper seen via MCP Registry (official)
    Source: MCP Registry (official) · Open

Frequently asked questions about Gatekeeper

What does Gatekeeper do?
Inferred · not functionally tested: Gatekeeper focuses on preventing unauthorized or unsafe AI agent tool calls while maintaining an auditable record of decisions. It is catalogued under AI security & guardrails on PulseGate.
Who should use Gatekeeper?
Inferred · not functionally tested: Gatekeeper is an open-source project built for developers building AI agents and agent platforms.
Is Gatekeeper free?
Basis unknown · not verified: Yes — Gatekeeper is open source under the Open Source license and free to use.
What platforms does Gatekeeper run on?
Basis unknown · not verified: Gatekeeper runs on the command line and API. It can also be self-hosted.
Is Gatekeeper still active?
PulseGate's liveness check found it on 6 Oct 2026.
What projects are similar to Gatekeeper?
Similar projects tracked by PulseGate include command-gate, GateKeep402, and agentgate.command-gateGateKeep402agentgate
Who makes Gatekeeper?
Gatekeeper is developed by Runestone Labs.
Is Gatekeeper open source?
Basis unknown · not verified: Yes — Gatekeeper is open source under the Open Source license.

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