Best Jest MCP Servers
Jest is a delightful JavaScript Testing Framework with a focus on simplicity. It works with projects using Babel, TypeScript, Node.js, React, Angular, Vue.js and more.
Why this server?
Supports generating and running tests with the Jest framework.
AlicenseAqualityAmaintenanceAnalyzes code to map behaviors, identify untested gaps, and generate grounded integration tests that actually run.151,364 npm18MITWhy this server?
Supports inspecting Jest doubles (jest.spyOn, manual __mocks__, mockReturnValue, mockImplementation, etc.) to detect stale or invalid mocks before running tests.

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?
Allows running Jest test suites on BrowserStack's cloud infrastructure for cross-browser and cross-device testing
AlicenseBqualityCmaintenanceBrowserStack's Official MCP Server519,608 npm153AGPL 3.0Why this server?
Uses Jest for comprehensive testing of all database tools and operations.
AlicenseBqualityCmaintenanceA comprehensive Model Context Protocol server for SQL Server database operations that provides 10 powerful tools for database analysis, object discovery, and data manipulation.11112 npm15MITWhy this server?
Enables automated Jest test generation for React Native components, coverage analysis, and testing strategy optimization
AlicenseBqualityDmaintenanceProvides comprehensive React Native development assistance with expert-level automated code remediation, security vulnerability fixes, performance optimization, and production-ready code generation. Includes testing suite generation, dependency management, and accessibility compliance tools.13132 npm66MITWhy this server?
Used for integration testing against a live Medplum instance to verify FHIR resource operations.
AlicenseBqualityDmaintenanceA Model Context Protocol server that enables natural language commands to manage healthcare data stored in Medplum FHIR servers through standardized Create, Read, Update, and Search operations.3717MITWhy this server?
Includes testing support with Jest, allowing for running tests with coverage and in watch mode.
AlicenseBqualityCmaintenanceAn MCP server that provides AI assistants with team analytics capabilities for Cursor editor, allowing them to retrieve team member information, usage metrics, and spending data through natural language queries.33MITWhy this server?
Parses Jest test output into structured results, including per-file pass/fail status and test counts.
AlicenseAqualityCmaintenanceEnables coding agents to run Playwright e2e tests, validate Supabase RLS policies with role-based SQL, typecheck TypeScript, execute npm scripts with parsed test output, and validate Next.js builds, all through a structured MCP interface.5MITWhy this server?
Enables unit testing capabilities for verifying functionality and ensuring code quality
AlicenseBqualityDmaintenanceA Node.js and TypeScript server project that provides a simple starter example with Express.js web server, supporting hot-reload, testing, and modular structure.247 npmISC