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mcp-behaviour-guard

PyPIInfrastructure

PulseGate's liveness check found it on 19 Sep 2026; it is registered on GitHub and PyPI and has been in the index since 19 Sep 2026. How this is checked

mcp-behaviour-guard is an MIT-licensed Python package for deterministic security contract and behavioral regression testing of MCP servers. It helps developers validate MCP server behavior and detect security-related regressions.

Inferred · not functionally tested

Open SourceMITCLISelf-hosted
Visit PyPI
1star
5features
2026since

Overview

5 features

Purpose: Testing MCP servers for security contract violations and behavioral regressions.

Inferred · not functionally tested

Audience: developers building and securing MCP servers

Inferred · not functionally tested

Functions: Unknown

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

Recorded constraints: pricing: open_source · license: MIT · platforms: CLI · deployment: cli, self_hosted

Constraint provenance is unknown; confirm requirements with the publisher.

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

In the Testing & QA space, mcp-behaviour-guard takes a focused approach. Inferred · not functionally tested: It focuses on testing MCP servers for security contract violations and behavioral regressions. Inferred · not functionally tested: mcp-behaviour-guard is an open-source project aimed at developers building and securing MCP servers. Basis unknown · not verified: mcp-behaviour-guard is open source under the MIT license. Basis unknown · not verified: It runs on the command line, and it can be self-hosted.

It is developed by hacker-vs-cracker, and it first shipped in 2026. Development happens publicly on GitHub with 31 commits in the last 90 days. Inferred · not functionally tested: Among its 5 catalogued features are security contracts, behavioral regression tests, and deterministic testing. Basis unknown · not verified: Catalogued interfaces include an MCP server.

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

Tasks: Inferred · not functionally tested

  • Security contracts
  • Behavioral regression tests
  • Deterministic testing
  • MCP server testing
  • AppSec checks

Topics: Inferred · not functionally tested

Tags
mcp-securitybehavioral-testingsecurity-contractsregression-testing

JSON profile · Text profile · Access guide

Built with & integrations

Connectors
MCP
Runs on
CLISelf-hosted

Trust & compliance

License
MIT
Public signals
HTTPSOpen SourceGitHub · ★ 1Active maintenance

Indexing history

4

What PulseGate has recorded for this listing

  1. Indexed30 Sep · 07:28 UTC
    mcp-behaviour-guard seen via PyPI Fresh Feed
    Source: PyPI Fresh Feed · Open
  2. Indexed29 Sep · 05:45 UTC
    mcp-behaviour-guard seen via PyPI Fresh Feed
    Source: PyPI Fresh Feed · Open
  3. Indexed21 Sep · 06:54 UTC
    mcp-behaviour-guard seen via PyPI Fresh Feed
    Source: PyPI Fresh Feed · Open
  4. Indexed17 Sep · 03:44 UTC
    mcp-behaviour-guard seen via PyPI Fresh Feed
    Source: PyPI Fresh Feed · Open

Frequently asked questions about mcp-behaviour-guard

What does mcp-behaviour-guard do?
Inferred · not functionally tested: Mcp-behaviour-guard focuses on testing MCP servers for security contract violations and behavioral regressions. It is catalogued under Testing & QA on PulseGate.
Who is mcp-behaviour-guard for?
Inferred · not functionally tested: mcp-behaviour-guard is an open-source project built for developers building and securing MCP servers.
Does mcp-behaviour-guard have a free plan?
Basis unknown · not verified: Yes — mcp-behaviour-guard is open source under the MIT license and free to use.
What platforms does mcp-behaviour-guard run on?
Basis unknown · not verified: mcp-behaviour-guard runs on the command line. It can also be self-hosted.
Is mcp-behaviour-guard still maintained?
PulseGate's liveness check found it on 19 Sep 2026. Its GitHub repository shows 31 commits in the last 90 days.
What projects are similar to mcp-behaviour-guard?
Similar projects tracked by PulseGate include mcp-toolguard, mcp-agent-guard, and guard-core-mcp.mcp-toolguardmcp-agent-guardguard-core-mcp
Who develops mcp-behaviour-guard?
mcp-behaviour-guard is developed by hacker-vs-cracker.
How long has mcp-behaviour-guard been around?
mcp-behaviour-guard first shipped in 2026.

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