Packages

4763 results

Cypress

Developer Tools

End-to-end browser testing framework for web apps that runs tests directly in the browser with real-time reloading and automatic waiting.

Free tier testing e2e javascript
70

FluentValidation

Developer Tools

Fluent validation rules library for .NET — defines validation logic in separate validator classes using chainable rule syntax. FluentValidation: class AgentCreateValidator : AbstractValidator<AgentCreateRequest> { RuleFor(x => x.Name).NotEmpty().MaximumLength(100).WithMessage("Agent name required"); RuleFor(x => x.Config).SetValidator(new AgentConfigValidator()); }. Features: built-in validators (NotNull, EmailAddress, Must, Matches, InclusiveBetween), async validation, conditional rules (When, Unless), rule sets for partial validation, localization, and collection validation (RuleForEach). Integrates with ASP.NET Core model validation pipeline for automatic validation before controller action execution. Replaces DataAnnotations for complex agent validation rules.

Free tier dotnet csharp validation
70

LAPRAS MCP Server

Productivity

Official LAPRAS MCP server enabling AI agents to access LAPRAS — Japan's developer portfolio and assessment platform — retrieving developer profile scores, activity data, technology assessments, and integrating LAPRAS's developer evaluation metrics into agent-driven HR and developer discovery workflows.

MCP Free tier lapras developer-profile japan
70

NumPy

Developer Tools

Fundamental package for numerical computing in Python. NumPy provides the N-dimensional array (ndarray) with vectorized mathematical operations that run as compiled C/Fortran code — 10-100x faster than pure Python loops. The foundational library that pandas, scipy, scikit-learn, TensorFlow, and PyTorch all build on. Essential for any numerical, scientific, or machine learning work in Python.

Free tier python numerical array
70

PwnDoc MCP Server

Security

MCP server for PwnDoc — the popular open-source penetration testing report writing tool. Enables AI agents to create, manage, and update pentest findings, vulnerabilities, and reports in PwnDoc. Automates the tedious report-writing phase of penetration testing by allowing agents to document findings programmatically.

MCP Free tier pwndoc pentest report-writing
70

pandas

Developer Tools

The foundational Python data manipulation library. pandas provides DataFrame and Series data structures with operations for reading CSV/Excel/JSON/SQL, filtering, grouping, joining, pivoting, time series analysis, and exporting. The lingua franca of Python data science — virtually every data pipeline, ETL process, and analysis notebook uses pandas. pandas 2.0 introduced Arrow-backed dtypes for significantly better performance.

Free tier python data-analysis dataframe
70

powerbi-modeling-mcp

Productivity

MCP server enabling AI agents to interact with Power BI semantic models, supporting natural language-driven creation, modification, and querying of tables, measures, relationships, and DAX.

MCP Priority Free tier power-bi mcp semantic-model
70

xUnit.net

Developer Tools

Unit testing framework for .NET — uses [Fact] for parameterless tests, [Theory] with [InlineData] for parameterized tests, constructor injection for setup, and IDisposable/IAsyncDisposable for teardown. xUnit.net features: no [SetUp]/[TearDown] attributes (constructor/dispose pattern instead), [ClassFixture<T>] for shared expensive setup across tests in a class, [CollectionFixture<T>] for shared setup across test classes, Assert.Throws<T>, Assert.Equal with detailed diffs, and parallel test execution by default. Preferred over NUnit and MSTest for modern .NET projects — used by ASP.NET Core and Entity Framework Core test suites. Integrates with Moq/NSubstitute for mocking agent service dependencies.

Free tier dotnet csharp testing
70

Bitwarden Password Manager MCP Server

Security

MCP server for Bitwarden — the open-source password manager and secrets manager. Enables AI agents to interface with Bitwarden Secrets Manager (not personal vault) for managing application secrets, API keys, and credentials. Bitwarden Secrets Manager is the enterprise-grade secrets management product distinct from the personal password manager.

MCP Free tier bitwarden password-manager secrets
70

Box API

Other

Enterprise-grade cloud content management API for storing, managing, sharing, and collaborating on files with advanced security, compliance, and governance controls.

Free tier box enterprise file-storage
70

CoinGecko API

Other

Comprehensive cryptocurrency market data API providing prices, market caps, volume, historical data, exchange data, and DeFi protocol metrics for 10,000+ coins and tokens.

Free tier coingecko crypto cryptocurrency
70

DeepSeek R1 MCP Server

AI & Machine Learning

DeepSeek R1 MCP server enabling AI agents to access DeepSeek R1 — the powerful open-source reasoning model from DeepSeek — for extended thinking and chain-of-thought reasoning tasks, integrating DeepSeek's competitive reasoning capabilities into agent workflows that need deep analysis.

MCP Free tier deepseek deepseek-r1 reasoning
70

Festival Finder MCP Server

Productivity

MCP server for discovering festivals worldwide by location, date, and genre. Enables AI agents to find, compare, and filter festivals — supporting event planning, travel planning, and entertainment discovery workflows with worldwide festival data.

MCP Free tier festivals events music
70

HERE Maps API

Other

Enterprise mapping and location platform providing geocoding, routing, real-time traffic, fleet management APIs, and highly accurate map data especially strong in Europe and Asia.

Free tier here-maps geocoding routing
70

MCP Fusion

Developer Tools

MCP Fusion is an MCP aggregation and proxy tool from vinkius-labs. Enables combining multiple MCP server connections into a unified MCP interface — multiplexing tool calls across multiple backend MCP servers, routing requests intelligently, and presenting a single merged MCP endpoint to clients. Useful for building multi-capability agent configurations.

MCP Free tier mcp aggregation multi-provider
70

MCP PyAutoGUI Server

Developer Tools

MCP server built on PyAutoGUI enabling AI agents to control desktop GUI applications through mouse and keyboard automation — clicking, typing, screenshotting, scrolling, and interacting with any desktop application. Provides computer-use style automation for applications without APIs, enabling agents to control legacy software, native apps, and desktop workflows.

MCP Free tier pyautogui desktop-automation gui-automation
70

MCP UI Server

Developer Tools

MCP UI server providing browser-based user interface capabilities for AI agents — rendering web-based UI components, displaying agent outputs in formatted views, providing interactive forms and controls for human-agent interaction, and enabling agents to present structured information through a web UI rather than plain text output.

MCP Free tier ui mcp-server user-interface
70

Shodan MCP Server

Security

Shodan MCP server enabling AI agents to query Shodan — the internet-wide scanner and device search engine used for security research and OSINT. Enables searching for internet-connected devices by IP, service, CVE, and technology; querying host information; discovering exposed services; and integrating Shodan intelligence into security analysis and vulnerability management workflows.

MCP Free tier shodan security osint
70

Swiggy MCP Server — Food Delivery

Productivity

Official Swiggy MCP server enabling AI agents to interact with Swiggy's food delivery platform — searching restaurants and food items, checking delivery options and ETAs, browsing menus, and integrating Swiggy's food delivery capabilities into agent-driven personal assistant and food ordering workflows in India.

MCP Free tier swiggy food-delivery restaurants
70

Telegram Bot API

Communication

Telegram's REST API for building bots that can send and receive messages, handle inline queries, manage groups, send files and media, and interact with Telegram users and channels. Free and widely used for agent notification delivery and conversational interfaces.

Free tier telegram bot messaging
70
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