Best Pytest MCP Servers
pytest is a Python testing framework that makes it easy to write small, readable tests, and can scale to support complex functional testing.
Why this server?
Used for running tests in the development workflow
AlicenseBqualityAmaintenanceModel Context Protocol server for YDB databases that enables AI-powered database operations and natural language interactions with YDB instances from any LLM that supports MCP.729Apache 2.0Why this server?
Supports unit testing framework for validating MCP server functionality
AlicenseAqualityCmaintenanceEnables access to Hong Kong government's official open data portal (DATA.GOV.HK) through natural language queries. Supports searching datasets, browsing categories, and retrieving detailed information about Hong Kong's public data resources.88MITWhy this server?
Supports checking pytest-mock based patches (mocker.patch, patch.object, create_autospec, etc.) against production code to find stale test doubles.

Nemesis-MCPofficial
AlicenseAqualityAmaintenanceChecks mocks, stubs, and spies against current production code to detect stale or mismatched test doubles without running any tests.3MITWhy this server?
Supports generating and running tests with the pytest framework.

OrangePro MCPofficial
AlicenseAqualityAmaintenanceAnalyzes code to map behaviors, identify untested gaps, and generate grounded integration tests that actually run.151,237 npm18MITWhy this server?
Used for testing contributions to the Root Signals MCP Server codebase.
AlicenseAqualityFmaintenanceMCP for Scorable Evaluation Platform312MITWhy this server?
Provides a pytest `jev` fixture that lets Playwright tests use Jev decisions and records traces that can be replayed offline in CI.
Why this server?
Supports testing of the server's functionality through pytest, ensuring proper operation of graph visualization features.

Graphistry MCPofficial
AlicenseAqualityFmaintenanceGPU-accelerated graph visualization and analytics server for Large Language Models that integrates with Model Control Protocol (MCP), enabling AI assistants to visualize and analyze complex network data.177 npm12MITWhy this server?
Provides testing capabilities for the MCP server implementation, including coverage reporting
AlicenseBqualityDmaintenanceAn MCP server that enables LLMs to access the NijiVoice API for text-to-speech generation, supporting features like fetching available voice actors and checking credit balance.32MITWhy this server?
Supports testing the MCP server implementation with pytest, including coverage reporting
AlicenseBqualityCmaintenanceA Model Context Protocol server that integrates with Nautobot to provide network automation and infrastructure data to AI assistants like Claude, allowing them to query and interact with network Source of Truth systems.51MIT