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Developer Tools

282 tools

Mechanix

Mechanix is a platform that provides developers with easy access to powerful tools to augment their applications. It offers tools like Web Search and Code Execution as an all-in-one hosted API, similar to LangChain tools. Developers can integrate these tools into their AI-powered applications or use them independently.

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UsageGuard

Enterprise-ready AI development and observability platform

UsageGuard is a platform designed for building and monitoring AI applications. It provides AI security, cost control, and usage tracking. It allows access to open-source and third-party AI models, including OpenAI, Meta, and Anthropic, with built-in safeguards, moderation, cost control, end-user, and usage tracking. It offers features like a unified API for all AI models, real-time streaming, session management, and enterprise-grade security.

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Kapsul

Adaptive Storage as a Software for the AI Driven Age

Kapsul is a decentralized platform providing Storage as a Software, enabling Programmable Storage for adaptive data management tailored to user and application context. It harnesses the power of AI and Blockchain technology, putting users in control of their data, guaranteeing both privacy and seamless accessibility. Kapsul unifies privacy, compliance, and reliability in one customizable platform, offering dynamic reliability and enhanced privacy through tailored replication and encryption strategies. It also provides built-in multi-cloud support for decentralization, scalability, and reliability.

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Markup: Document Annotation

AI Content Guardrails for Marketing Teams

Markup is an open-source annotation tool that can be used to transform unstructured documents into structured formats for NLP and ML tasks, such as named-entity recognition. Markup learns as you annotate to predict and suggest complex annotations. It helps turn text into structured data without the hassle, rapidly building structured datasets from free-text for NLP and ML. Powered by GPT-4.

FreeFree tier

Mods

Charm is a platform that provides tools and libraries for building command-line applications with a focus on making the command line glamorous. It offers a variety of open-source libraries and applications designed to enhance the user experience of terminal-based tools, including markdown readers, form builders, and SSH app creation tools. Charm aims to improve the developer experience by providing elegant and powerful solutions for command-line interfaces.

FreeFree tier

RecoFeed

India's #1 Video Review Marketplace

RecoFeed is a tool for creating personalized recommendation feeds, curating items like articles and videos based on user interests. It generates recommendations locally, ensuring data privacy, and supports AI-enhanced content. RecoFeed operates using CloseVector, a cross-platform vector database downloaded directly onto the user's device, where recommendations are generated in real time, locally. This means your users' data stays on their device and isn't sent back to any server. RecoFeed is committed to providing its basic services free of charge, with fees only applying for more advanced features like AI workflows.

FreemiumFree tier

VibeBlocks

Turn vague ideas into structured app blueprints.

VibeBlocks is a free AI-powered tool designed to transform messy notes, voice notes, or vague application ideas into structured, spec-driven blueprints. These blueprints include user flows, designs, PRDs (Product Requirement Documents), data models, and copy-and-paste prompts compatible with AI coding tools like Lovable, Cursor, Bolt.new, v0, and Replit. It aims to help users create full technical specifications as if they were professional developers, reducing errors and wasted credits on buggy builds.

FreemiumFree tier

Airtrain.ai LLM Playground

No-code LLM playground for comparing models and curating datasets

Airtrain AI is a comprehensive platform designed to help users explore and curate unstructured datasets. It offers a no-code LLM playground for vibe-checking and comparing the quality, performance, and cost of various open-source and proprietary LLMs, including Claude, Gemini, Mistral AI models, OpenAI models, Llama 2, and Phi-2. The platform also provides auto-clustering, AI classification and labeling, an embedding explorer, and tools for LLM fine-tuning and evaluation. Airtrain AI is joining Weights & Biases and sunsetting its products.

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Jots

Your second brain as a developer

Jots is a developer-focused journaling app designed to help developers accelerate their goals, improve technical skills, track progress, reflect, and take action. It acts as a 'second brain' for engineers to level up their expertise daily.

FreeFree tier

honeyhive.ai

The Observability Layer for Production Agents

HoneyHive is an AI observability and evaluation platform designed for teams building LLM applications. It provides tools for AI evaluation, testing, and observability, enabling engineers, PMs, and domain experts to collaborate within a unified LLMOps platform. HoneyHive helps teams test and evaluate their applications, monitor and debug LLM failures in production, and manage prompts within a collaborative workspace.

FreemiumFree tier

determined.ai

HPE machine learning development environment with automated hyperparameter optimization

Determined AI is an HPE machine learning development environment that provides automated hyperparameter optimization, distributed training, cluster management, and enterprise-grade cloud solutions. The documentation provides quick access to information, tutorials, quickstarts, user guides, and reference material.

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captum.ai

Model Interpretability for PyTorch

Captum is a PyTorch library for model interpretability. It provides tools and techniques to understand and attribute the predictions of PyTorch models across various modalities, including vision and text. Captum supports most PyTorch models and allows for easy implementation and benchmarking of new interpretability algorithms.

FreeFree tier

Nitrode

Technology x Finance: Smart, Connected, Proven

Nitrode is an AI game engine designed to empower developers to quickly create playable 3D games in a matter of hours. It is an AI-native engine that facilitates game design, scripting, and deployment by allowing users to create mechanics through connecting nodes, generate assets with AI, and build games without boilerplate code. Nitrode aims to help users realize their dream games by providing smart building tools and AI-powered assistance.

FreeFree tier

mcp-use

Build and deploy MCP apps and servers

mcp-use is an open-source platform that provides devtools and cloud infrastructure to help development teams quickly build and deploy custom AI agents using MCP (Model Context Protocol) servers. It offers an SDK for creating AI agents, a registry for discovering community-built servers, and a managed gateway for routing, authenticating, and load-balancing MCP servers. The platform aims to simplify the process of building, discovering, and deploying MCP servers and AI agents, supporting various deployment environments including cloud, local VMs, and third-party services.

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New API

One API endpoint for all your AI model providers

New API is a unified AI model hub that aggregates multiple LLM providers into a single API endpoint. It handles key management, usage tracking, billing, and load balancing for OpenAI, Anthropic, Google, Mistral, and dozens of other AI providers through one consistent interface.

FreeFree tier

Progressier

PWA Made Easy

Progressier is a toolkit designed for web developers and "vibe coders" to effortlessly build fully-featured Progressive Web Apps (PWAs). It enables universal installation across various devices (iPhone, iPad, Android, Mac, PC) and browsers, and provides robust push notification capabilities. The platform simplifies PWA development by offering no-code solutions for integrating installation and push notifications into existing web apps, managing app manifests, generating necessary assets like splash screens and maskable icons, and providing tools for PWA promotion, analytics, and even programmatic PWA creation. It also includes features like an app reviews manager and integrations with numerous no-code builders and JavaScript frameworks.

FreemiumFree tier

Cencurity

Enterprise security gateway for LLM agents

Cencurity is an enterprise-grade security gateway designed to proxy LLM and agent traffic. It functions by detecting, masking, and blocking sensitive data, PII, and risky code patterns in both requests and responses. The platform provides a centralized dashboard for real-time monitoring and recording of all interactions as audit logs. It is designed to be compatible with any LLM agent or IDE without requiring code rewrites, ensuring safe and governed AI integration for development teams.

FreeFree tier

cubic

AI code reviewer that merges PRs 48% faster

cubic is an AI code reviewer for complex codebases. It’s used by top engineering teams at n8n, Cal.com, Resend, and more. Code review is a major bottleneck for software teams, and the rise of AI-generated code is making the problem worse. Reviewing large volumes of code slows devs down, and increases the chances of bugs slipping through. That's why we're building cubic: an AI code reviewer designed for complex codebases. Teams who adopt cubic merge merge PRs 48% faster. How? When you open a PR, cubic automatically reviews it. It learns from your codebase's patterns, points out bugs, suggesting fixes, and frees you from low-level review tasks.

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Speclint

Score and fix user stories for AI coding agents.

Speclint is an open-source spec linter that scores user stories and requirements on a 0-100 scale across 5 dimensions: Measurable Outcomes (20pts), Testable Criteria (25pts), Constraints (20pts), No Vague Verbs (20pts), and Verification Steps (15pts). The scoring is fully deterministic — pure regex pattern matching, no LLM involved. AI is only used for the optional rewrite feature, which rewrites failing specs to pass all checks. Available as: CLI (npx speclint lint), GitHub Action, MCP Server (3 tools), and REST API. Free tier: 5 lints/day. Paid plans start at $9/mo for unlimited linting and rewrites. Open source (MIT). Built for teams shipping to AI coding agents — if your spec scores below 70, the agent will hallucinate. Fix the spec first.

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Thunder Compute

World's Cheapest GPUs Cloud Platform

Thunder Compute provides cheap cloud GPUs for AI/ML, offering on-demand A100 & H100 GPU instances for up to 80% less. It simplifies AI/ML prototyping and development with tools like a simple CLI, instance templates, and VS Code/Cursor extension for real-time file syncing. Users can scale on demand and pay only for what they use.

Paid

Vibe Architect for Cursor

Visual no-code backend for Cursor projects

For many builders using Cursor, the frontend feels intuitive and productive. You can design pages, click buttons, and interact with components easily. Behind the UI, however, data models, business logic, authentication, AI workflows, and payments are handled in backend code that can be difficult to visualize and reason about — especially if you’re not a backend specialist. Vibe Architect connects your Cursor project to Momen, a visual no-code backend that makes these core systems easy to see and manage. With Momen, you can: Visually design your database and relationships Build backend workflows as clear, step-by-step action flows Configure AI agents with structured input and output Manage authentication, permissions, and payments without backend code Cursor continues to generate fast, high-quality frontend code. Momen makes everything behind the scenes visible, structured, and controllable. Together, they form a practical, production-ready full-stack workflow — without requiring deep backend expertise.

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Eficode

Eficode: DevOps, AI, and Platform Engineering—Delivered as a Managed Developer Platform

Eficode is a DevOps, AI, and platform engineering partner that accelerates software delivery through Eficode ROOT, a Developer Platform as a Service that unifies Atlassian, GitHub, GitLab, and modern CI/CD into a secure, fully managed toolchain. With 600+ experts across 10 countries, Eficode provides consulting, training, portfolio and service management, and continuous services that automate workflows, optimize costs, and boost developer productivity. Certified for ISAE 3402 / SOC 1 Type 2 and ISO 27001, and deployable across cloud or on‑prem, Eficode delivers data-driven insights (including Eficode Journey) and end-to-end support to scale DevOps and AI adoption with confidence.

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AI JSON Formatter

Free Online JSON Beautifier Validator

JSON Formatter is an online tool designed to format, validate, and beautify JSON data. It offers an easy-to-use interface for quickly and efficiently formatting JSON, even if it's broken. The tool also includes an AI-powered fixer to correct errors in JSON data.

FreeFree tier

Maxim AI

Test and deploy AI apps with greater speed and confidence.

Maxim is an end-to-end AI evaluation & observability platform that helps you test and deploy AI apps with greater speed & confidence. Its developer stack includes tools for the full AI lifecycle: experimentation, pre-release testing, & post-release monitoring. It offers features like agent simulation and evaluation, prompt engineering tools, observability, and continuous quality monitoring. Maxim supports various AI frameworks and provides SDKs, CLI, and webhook support.

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