Developer Tools Directory

An open-source, local-first, model-agnostic AI research workbench.

A verified workflow engine for Claude Code, enhancing AI-assisted coding.

Free Windows video player with real-time frame interpolation for smoother playback.

AI shopping agent that demonstrates product recommendation choices.

An open-source AI coding agent designed for product engineers.

Provide live market signals to your AI agent for enhanced decision-making.

Disposable test environments for AI coding agents.

Control AI coding and CLI agents from your iPhone.

Real-time structured search for agents and developers.

Compresses code for Claude, reducing tokens and cost by 50%.

AI that fights customer service for you

Private AI autocomplete for every app on your Mac.

TypeScript runtime for self-organizing AI agents.

Social listening for the agent era, providing insights and monitoring.

An AI-powered notebook for data science, inspired by Cursor's approach for Jupyter.

Affordable, unmetered LLM API access for high-volume tasks without token tracking.

Run LeetCode solutions locally against open tests for practice and competitive programming.

CertLeaf helps event organizers issue verifiable E-certificates, solving a pain point for workshop and event organizers.

Voice in, voice out — with GitHub Copilot

AI-powered checklist maker for generating beautiful, free PDFs instantly.

Watch your AI coding agents build, live in 3D.

AI tool that automates tasks before you are even asked.

Subscription tracker to manage your recurring payments and avoid forgotten renewals.

Autonomous AI agent for end-to-end Meta ads management.

Privacy-first Microsoft Recall alternative using Gemma 4 for local vision, audio, and reasoning.

A homebrew tool for managing Claude tags, potentially useful for developers interacting with Claude.

AI-powered legal document generation toolkit replacing expensive SaaS subscriptions.

Signal copilot for Flipper Zero files, aiding in analyzing and managing data.

Crew lets Claude Code agents communicate and collaborate on codebases without needing separate worktrees.

High-performance command guard and policy enforcement for AI agents, written in Zig.

Validate app ideas with real market data before building.

Screen 3,000+ stocks by describing what you want in English using AI.

Local-first AI workspace with an in-browser Python sandbox for AI development.

WinGet wrapper organizing packages into versioned app profiles for Windows.

Shared, searchable memory for AI coding agents.

A BI tool that enables users to automate actions directly from their data.

Solaris is a platform designed to help companies adopt AI and upskill their workforce.

Connect your AI agent to postal mail.

One API to scrape, enrich, and extract the internet for developers.

Enhance your AI capabilities on macOS with this tool.

Build custom Mac apps using AI chat.

Anthropic's most agentic Sonnet model (June 30, 2026). Introductory API pricing $2/$10 per million tokens through Aug 31. Default model for Free and Pro plans. Best value in the Claude lineup.

Anthropic's most capable general-purpose model (June 9, 2026). Available on Claude.ai Pro/Max/Team plans and via API. Approaches Opus-tier on most benchmarks at Sonnet pricing. Restricted in some regions.

Anthropic's auditable AI workbench for scientific research. Displays 3D protein structures, chemical structures, and molecules alongside the exact code that created them. Runs on Claude Opus 4.8.

Anthropic's frontier reasoning model. Top WebDev Arena score (1567 Elo). Best-in-class MCP-Atlas (77.3%). Pricing $5/$25 per million tokens.

Open-source coding agent with 160K+ GitHub stars and 7.5M monthly active developers (June 2026 #1 ranking). Model-agnostic — supports 75+ providers including Claude, GPT, Gemini, DeepSeek, and local via Ollama. LSP integration, background subagents, Scout agent for research.

Major April 2026 rebuild of the AI-native code editor. Agents Window runs multiple AI agents in parallel. Background Agents work in isolated VMs and open PRs when done. Cloud Agents triggered from Slack/GitHub/mobile.

AI-native browser with integrated answer engine, context-aware tab assistance, voice mode, and multi-step agentic task automation. Free on iOS, Android, Windows, Mac (March 2026). Deep Research generates PowerPoints, spreadsheets, and dashboards.

Anthropic's official TypeScript and Python toolchain for building agents with native MCP server integration and sub-agent orchestration. Works directly with Claude Sonnet and Opus models.

Free Private Cloud Compute access for developers with fewer than 2M App Store downloads (WWDC 2026). Image input support, server-side model integration (Claude, Gemini via Swift API), Dynamic Profiles for multi-agent workflows.

April 2026 stability update. HD mode 3x faster and cheaper. Standard resolution 50% faster. New Prompt Shortener and updated Describe features. V8.2 and V9 (better text, style control, multi-image) on roadmap.

Google's replacement for the deprecated Gemini CLI (sunset June 18 2026). Built in Go with async workflows and unified architecture. Completely free during preview with multi-agent orchestration and Chrome browser automation.

Hugging Face's minimal-abstraction agent runtime. ~1000 lines of Python. Lets models write and execute raw Python in managed sandboxes (E2B, Blaxel, Docker). No JSON schema translation required.

New Copilot tier (June 2026). All plans now use usage-based billing with GitHub AI Credits. Copilot Max available as upgrade for Student, Pro, and Pro+ subscribers. Fable 5 available inside Copilot.

Official debugging tool for testing MCP server implementations.

Official prompt examples and best practices from OpenAI.

Official curated prompt examples and engineering guidance from Anthropic.

Open-source tool for testing and evaluating LLM prompts and outputs.

Debugging, testing, and monitoring platform for LLM applications by LangChain.

Prompt management, versioning, and analytics platform for LLM applications.

AI pair programmer integrated across major IDEs.

Open-source AI pair programming tool that works directly in your terminal and git repo.

Agentic IDE with Cascade flow for autonomous coding tasks.

Google's agentic IDE for autonomous multi-file development and testing.

Anthropic's agentic coding CLI tool for terminal-based development workflows.

Claude Fable 5 — Anthropic's flagship frontier model released June 9 2026. Available via API ($10/$50 per million tokens), Claude Code, GitHub Copilot, and Cursor. Leads LMArena benchmarks.

Connect AI assistants to thousands of apps via Zapier's MCP server.

Pre-built MCP and tool integrations for connecting AI agents to 100+ apps.

Official directory of available Model Context Protocol servers.

Registry and hosting platform for discovering and deploying MCP servers.

Meta's open-weight frontier model family.

OpenAI's frontier model family including reasoning-focused variants.

Google's frontier multimodal AI model family.

Neural search API designed for AI applications and agents.

Search API purpose-built for AI agents and LLM applications.

Text-to-speech and voice cloning API.

Run open-source AI models via simple API calls without managing infrastructure.

Serverless Redis, Kafka, and vector database with pay-per-request pricing.

Developer-friendly transactional email API.

Unified API access to 100+ LLMs from different providers through one endpoint.

Frontier code assistant model by Alibaba Qwen team, achieving industry-leading coding benchmarks.

Meta Llama 3.2 lightweight text generation model optimized for edge devices.

A trending repository: sponsors/freeCodeCamp.

Anthropic's hybrid reasoning frontier model that natively balances instantaneous responses with deep, extended-compute logical thinking.

xAI's massive-scale frontier model, featuring real-time access to global data streams and deep scientific reasoning capabilities.

Speed-oriented reasoning model designed for high-performance coding, complex math, and low-latency API integration.

Google's ultra-fast, high-context multimodal model designed for real-time agentic actions and audio-video processing.

Open-source frontier reasoning model that achieves performance parity with OpenAI's o1 in math, code, and reasoning tasks.

Full-stack AI app builder running entirely in-browser via WebContainers.

The world's first autonomous AI software engineer, capable of building, testing, and deploying complex software systems independently.

Generates UI components from text prompts, exports directly to React.

AI-native code editor built on VS Code with deep codebase context.

State-of-the-art voice generation and text-to-speech platform. Curated for developers building voice agents.

Frontier text-to-image generative model. Excellent for drafting media assets, mockups, and visual inspirations.

The issue tracker that teams actually love using. Fast, keyboard-shortcuts driven, and extremely polished.

Free, robust cryptocurrency data API tracking prices, volume, market cap, and developer stats.

A collective index of thousands of free, public APIs for developers across tech, finance, weather, and science.

Free, fake, and reliable online REST API for testing and prototyping with zero configuration.

Free, public API providing comprehensive information about countries, regions, population, and currencies.

Free, simple weather data API providing current, forecast, and historical weather data for any location.

Payment infrastructure for the internet. Startups use it to accept payments, manage subscriptions, and scale.

Free developer API to programmatically interact with repositories, user profiles, issues, and gists.

A simple, free HTTP Request & Response Service, perfect for testing various HTTP methods, headers, and status codes.

The search engine for internet-connected devices. Critical for network mapping and vulnerability assessment.

Industry-standard web vulnerability scanner and penetration testing tool. Indispensable for security audits.