Alternatives to 21st
Compare 21st alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to 21st in 2026. Compare features, ratings, user reviews, pricing, and more from 21st competitors and alternatives in order to make an informed decision for your business.
-
1
Locofy
Locofy
Frontend development accelerated with AI. Turn designs into frontend code for web & mobile. Build full apps, screens, components & design systems. Ship products 10x faster with your existing design tools, libraries, tech stack & CI/CD workflows. Figma & Adobe XD to React, React Native, HTML/CSS, Gatsby, Next.js, Vue, and more coming soon. Keep using the tools you already use. We provide a Figma & Adobe XD plugin to tag your interactive elements and handle styling, layout, and responsiveness. As a bonus, we provide pre-built components from Material UI, Bootstrap, Ant Design, Chakra UI as well as your Storybook. Locofy converts your designs into production-ready code for React, React Native, HTML-CSS, Next.js, Gatsby, Vue, and more on the way in your preferred framework. Make reusable components and props with LocoAI. Export your code in your preferred settings (CSS Modules, Tailwind, CSS, Typescript, JavaScript, Expo).Starting Price: Free -
2
Base AI
Base AI
The easiest way to build serverless autonomous AI agents with memory. Start building local-first, agentic pipes, tools, and memory. Deploy serverless with one command. Developers use Base AI to develop high-quality AI agents with memory (RAG) using TypeScript and then deploy serverless as a highly scalable API using Langbase (creators of Base AI). Base AI is web-first with TypeScript support and a familiar RESTful API. Integrate AI into your web stack as easily as adding a React component or API route, whether you're using Next.js, Vue, or vanilla Node.js. With most AI use cases on the web, Base AI helps you ship AI features faster. Develop AI features on your machine with zero cloud costs. Git integrates out of the box, so you can branch and merge AI models like code. Complete observability logs let you debug AI-like JavaScript, and trace decisions, data points, and outputs. It's like Chrome DevTools for your AI.Starting Price: Free -
3
mcp-use
mcp-use
mcp-use is an open source development platform offering SDKs, cloud infrastructure, and a developer-friendly control plane for building, managing, and deploying AI agents that leverage the Model Context Protocol (MCP). It enables connection to multiple MCP servers, each exposing specific tool capabilities like browsing, file operations, or specialized integrations, through a unified MCPClient. Developers can create custom agents (via MCPAgent) that dynamically select the most appropriate server for each task using configurable pipelines or a built-in server manager. It simplifies authentication, access control, audit logging, observability, sandboxed runtime environments, and deployment workflows, whether self-hosted or managed, making MCP development production-ready. With integrations for popular frameworks like LangChain (Python) and LangChain.js (TypeScript), mcp-use accelerates the creation of tool-enabled AI agents.Starting Price: Free -
4
Daytona
Daytona
Daytona is a cloud-native development runtime that enables developers and AI agents to instantly create, run, and manage isolated sandboxes for any codebase. Each sandbox runs inside a secure microVM with full Linux compatibility, networking, and persistent storage. Daytona provides SDKs in Python and TypeScript, allowing applications to programmatically execute code, run processes, upload files, or spin up environments dynamically. Teams use Daytona to replace complex local setups with reproducible cloud sandboxes that can be started in seconds and accessed through preview URLs, SSH, or APIs. It’s built for automation, observability, and scalability, powering everything from personal development environments to enterprise-grade agent runtimes. -
5
Toolpad Core
MUI
Toolpad Core is a self-hosted, low‑code internal tool builder tailored for full-stack and back-end developers, empowering them to craft admin interfaces, dashboards, and CRUD apps using drag‑and‑drop visuals while retaining full code control. Built on MUI's robust React component ecosystem, integrating MUI Core and X libraries, it offers a Postman‑like query builder for REST APIs, the ability to import custom React components, and smooth integration with Node.js backends, eliminating the need for boilerplate API wiring. Toolpad operates entirely locally, storing configuration in version-control–friendly files and giving developers the freedom to extend from low‑code prototypes to production‑grade features using JavaScript and TypeScript. With deep alignment to React, TypeScript, Next.js, and local IDE workflows, Toolpad bridges the gap between rapid UI assembly and maintainable, production-ready development.Starting Price: $180 per year -
6
Calljmp
Calljmp
Calljmp is a developer-first AI agent runtime designed to build, run, and scale long-running stateful workflows written in TypeScript. While many modern tools like Mastra AI provide rich frameworks to define agents and workflows, Calljmp focuses on actually running them reliably in production. Calljmp combines agent logic, durable execution, human-in-the-loop pause/resume, retries with idempotency, and built-in observability into a unified execution environment. Developers implement agents as code, and the runtime guarantees reliable execution, state persistence, and operational visibility without gluing together custom queues, databases, and monitoring stacks. Calljmp is ideal for engineering teams, product developers, and backend architects who want to embed intelligent agents into product systems while offloading execution complexity to a purpose-built runtime.Starting Price: Free -
7
Claude Agent SDK
Claude
The Claude Agent SDK is a developer toolkit that enables the creation of autonomous AI agents powered by Claude, allowing them to perform real-world tasks beyond simple text generation by interacting directly with files, systems, and tools. It provides the same underlying infrastructure used by Claude Code, including an agent loop, context management, and built-in tool execution, and is available for use in Python and TypeScript. With this SDK, developers can build agents that read and write files, execute shell commands, search the web, edit code, and automate complex workflows without needing to implement these capabilities from scratch. It maintains persistent context and state across interactions, enabling agents to operate continuously, reason through multi-step problems, take actions, verify results, and iterate until tasks are completed.Starting Price: Free -
8
VideoDB
VideoDB
VideoDB is a modern backend for AI agents, giving them the ability to see, understand, and act on video and audio in real time. It sits between raw media streams and agent reasoning systems, turning continuous streams into structured, searchable context with playable evidence. Our unified See->Understand->Act workflow replaces a fragmented stack of FFmpeg, vector DBs, and transcription tools with a single, programmable media layer. Featuring "Indexes-as-code," we allow developers to extract meaning from spoken words and visual scenes with near-zero latency. VideoDB supports Python and Node.js SDKs and integrates seamlessly with Claude, Cursor, and Codex via the Model Context Protocol (MCP). Built on a streaming-first architecture, it ensures your agents observe the world continuously rather than just reading static files. Whether you are building an AI meeting copilot, camera intelligence, or automated media editing, VideoDB provides the perception layer you need.Starting Price: $20/month -
9
Flowise
Flowise AI
Flowise is an open-source platform that enables developers and teams to build AI agents and LLM-powered applications through a visual interface. The platform provides modular building blocks that allow users to create everything from simple chatbot workflows to complex multi-agent systems. With its drag-and-drop design environment, developers can rapidly prototype and deploy AI-powered applications without extensive coding. Flowise supports integrations with more than 100 large language models, embeddings, and vector databases. It also includes features such as human-in-the-loop workflows, observability tools, and execution tracing for monitoring agent behavior. Developers can extend applications through APIs, SDKs, and embedded chat interfaces using TypeScript or Python. By combining visual development tools with scalable infrastructure, Flowise simplifies the process of building and deploying production-ready AI agents.Starting Price: Free -
10
Layercode
Layercode
Layercode is a cloud-based developer platform that makes it easy to build production-ready, low-latency voice AI agents by handling the real-time infrastructure so you can focus on your agent’s logic; it manages WebSockets, voice activity detection, global edge deployment, and voice model integrations while giving you full control over how your agent thinks, speaks, and responds. It enables natural, fluid voice conversations with sub-second response times and human-like turn-taking, offers observability tools so you can inspect calls, latency, and failures in production, and fits naturally into modern TypeScript and Next.js stacks with simple CLI and SDK support so you can receive text and send text back. With Layercode, you can avoid vendor lock-in by hot-swapping leading voice and transcription model providers, maintain complete flexibility by plugging in your own AI agent backend, and deploy voice agents across web, mobile, and phone interfaces.Starting Price: $0.04 per minute -
11
Agent Computer
Agent Computer
AgentComputer is a cloud-based infrastructure platform designed specifically for running AI agents in isolated, fully functional virtual environments. It provides “cloud computers” in the form of lightweight Ubuntu-based sandboxes that can be provisioned in under a second, allowing developers to quickly spin up, access, and manage environments through a command-line interface. These environments include persistent storage, meaning any installed tools, files, or configurations remain intact across restarts, enabling continuous and stateful workflows. It is built around an agent-first architecture, where AI agents can directly execute tasks within these environments via SSH, eliminating friction between instruction and execution. It includes an integrated AI harness that supports agents such as Claude, Codex, and other coding assistants, enabling collaborative, multi-agent workflows within the same system.Starting Price: $20 per month -
12
Ant Design
Ant Design
This is Ant Design's internal standard for evaluating design quality. Based on the assumption that "everyone is pursuing happiness at work", we have added the two values of "Meaningfulness" and "Growth" on the basis of "Certainty" and "Naturalness" to guide each designer towards better judgment and decision-making. Ant Design React is dedicated to providing a good development experience for programmers. Before starting, it is recommended to learn React and ES2015 first, and correctly install and configure Node.js v8 or above. The official guide also assumes that you have intermediate knowledge about HTML, CSS, and JavaScript, and React. If you are just starting to learn front-end or React, it may not be the best idea to use the UI framework as your first step.Starting Price: Free -
13
Modern MERN
Modern MERN
Modern MERN is a comprehensive Node.js SaaS boilerplate designed to accelerate the development of SaaS products by providing a robust foundation built with the MERN stack, MongoDB, Express.js, React, and Node.js. It incorporates modern technologies such as Next.js, TypeScript, Tailwind CSS, Prisma, and Serverless architecture on AWS, ensuring scalability and maintainability. The boilerplate includes essential features like authentication (supporting email/password, Google, Facebook, Apple, and Amazon logins), multi-tenancy with team management, subscription payments via Stripe integration, and an admin dashboard for efficient user and team oversight. Developers benefit from a clean code architecture adhering to solid principles, pre-built responsive UI components, multi-theme support, and a mobile-first design approach. The platform emphasizes high-quality code standards, incorporating tools like ESLint, Prettier, Husky, and TypeScript, alongside comprehensive testing.Starting Price: $699 per project -
14
Pythagora
Pythagora
Pythagora is an AI-powered platform designed to help developers build full-stack web applications with minimal coding effort. It integrates a suite of AI agents that collaborate to write code, review it, build tests, debug, and deploy apps. By automating many tasks involved in the software development lifecycle, Pythagora enables developers to work more efficiently and accelerate the development process. The platform supports frontend development in React and backend in Node.js, with Python support coming soon. With its ability to handle multiple aspects of development, Pythagora is ideal for quickly building both MVPs and production-ready applications. It simplifies the creation of scalable and maintainable applications, making it suitable for both small startups and large enterprises.Starting Price: $49/month -
15
VibeKit
VibeKit
VibeKit is a simple, open source SDK for safely running Codex and Claude Code agents in secure, customizable sandboxes. It enables you to embed coding agents directly in your app or workflow via a drop‑in SDK. import VibeKit and VibeKitConfig, and call generateCode with prompts, modes, and streaming callbacks for live output handling. VibeKit runs code in fully isolated private sandboxes, supports customizable environments where you can install packages, and is model‑agnostic, letting you choose any compatible Codex or Claude model. It streams agent output efficiently, maintains full prompt and code history, provides async run handling, integrates with GitHub for commits, branches, and pull requests, and supports telemetry and tracing (via OpenTelemetry). Compatible sandbox providers include E2B (today), with Daytona, Modal, Fly.io, and others coming soon, plus support for any runtime that meets your security needs.Starting Price: Free -
16
Mastra AI
Mastra AI
Mastra is a powerful TypeScript framework for building intelligent AI agents that can execute tasks, access knowledge bases, and maintain memory persistently within workflows. This framework simplifies the process of creating and deploying AI-powered agents by leveraging TypeScript’s capabilities to streamline development. With features like customizable agent instructions, memory, and task orchestration, Mastra provides developers with the tools to build and scale AI agents for various applications, from personal assistants to specialized domain experts.Starting Price: Free -
17
E2B
E2B
E2B is an open source runtime designed to securely execute AI-generated code within isolated cloud sandboxes. It enables developers to integrate code interpretation capabilities into their AI applications and agents, facilitating the execution of dynamic code snippets in a controlled environment. The platform supports multiple programming languages, including Python and JavaScript, and offers SDKs for seamless integration. E2B utilizes Firecracker microVMs to ensure robust security and isolation for code execution. Developers can deploy E2B within their own infrastructure or utilize the provided cloud service. The platform is designed to be LLM-agnostic, allowing compatibility with various large language models such as OpenAI, Llama, Anthropic, and Mistral. E2B's features include rapid sandbox initialization, customizable execution environments, and support for long-running sessions up to 24 hours.Starting Price: Free -
18
OpenAI Codex
OpenAI
Codex is an AI-powered coding agent from OpenAI designed to help developers build, manage, and ship software more efficiently across the entire development lifecycle. It acts as an intelligent pair programmer that can understand codebases, generate features, and deliver production-ready pull requests. Codex can safely execute commands in sandboxed environments while assisting with debugging, refactoring, and testing. A key advancement is its computer use capability, allowing it to operate your computer by seeing, clicking, and typing across applications. This enables Codex to interact with tools that don’t have APIs, making it useful for tasks like frontend testing and app navigation. The platform also includes an in-app browser and integrations with various developer tools for a more unified workflow. Codex supports automation by handling ongoing tasks such as monitoring, issue triage, and follow-ups. -
19
xpander.ai
xpander.ai
xpander.ai is a backend-as-a-service platform tailored for production-grade AI agents, offering developers a robust infrastructure that handles memory, tools, connectors, multi-agent workflows, triggering, state management, observability, and CI/CD pipelines without requiring infrastructure setup. Its visual AI agent workbench enables users to design, configure, simulate, test, and deploy agents interactively, complete with support for multi-agent collaboration, tool integrations, role-based access, and runtime governance. Developers can connect agents to SaaS or enterprise systems via AI-ready connectors, attach tool-compatible workflows, and monitor agent behavior with built-in observability and lifecycle tools. It supports deployment on hosted cloud infrastructure or within private VPCs, ensuring both agility and secure enterprise integration, and accelerates agent development from idea to production.Starting Price: $49 per month -
20
DebuggAI
DebuggAI
DebuggAI is an AI-powered debugging platform designed to streamline the process of identifying and resolving code issues through intelligent automation. It offers features such as text-based test requests, secure local tunneling for testing on localhost servers, and visual test reports with GIF recordings to enhance the debugging experience. The platform supports various technologies, including Node.js, Next.js, React, TypeScript, JavaScript, Python, Django, and Vite, making it versatile for different development environments. DebuggAI aims to reduce the complexity of end-to-end testing by allowing developers to generate and run tests using simple English commands, thereby improving efficiency and confidence in the development workflow.Starting Price: $20 per month -
21
Strands Agents
Strands Agents
Strands Agents is an open-source framework designed to help developers build controllable and flexible AI agents using Python and TypeScript. It enables users to create agents by defining tools as simple functions, eliminating the need for complex workflows or orchestration pipelines. The SDK works with any model and cloud provider, giving developers full freedom in how they deploy and scale their agents. It introduces a streamlined agent loop where the model handles reasoning while developers maintain control through code. Features like steering hooks allow developers to validate and guide agent behavior before and after actions are taken. The platform also includes built-in capabilities such as memory management, observability, and evaluation tools. Overall, Strands Agents SDK simplifies agent development while improving reliability, control, and performance.Starting Price: Free -
22
happycapy
happycapy
happycapy is an agent-native AI platform that turns your browser into a powerful “agent computer,” enabling developers and users to deploy and run autonomous AI agents 24/7 without traditional server infrastructure, letting you delegate work across hundreds of large language models (LLMs) and AI services such as Claude Code in a secure, sandboxed environment. It supports running multiple AI agents in parallel to handle coding, automation, data-processing, and custom workflows continuously, giving teams a unified interface for orchestrating, scaling, and monitoring agent tasks. happycapy emphasizes flexibility and developer control by providing a private sandbox where agents can execute jobs, interact with code and data, and collaborate on complex tasks while managing state, logs, and outputs from AI services. It simplifies building and maintaining AI-powered applications by abstracting the complexity of infrastructure and model orchestration.Starting Price: $17 per month -
23
Polyscope
Beyond Code
Polyscope is an agent-first development environment designed to orchestrate and run multiple AI coding agents in parallel, allowing developers to automate complex software engineering workflows. It works with advanced coding models such as Claude Code and OpenAI Codex, enabling users to launch several agents simultaneously while maintaining separate, isolated workspaces for each task. Each agent operates inside its own copy-on-write environment, which allows the system to safely experiment with different approaches, modify files, and test changes without affecting the original project. It enables developers to run dozens of AI agents concurrently to generate code, analyze repositories, perform debugging, or experiment with alternative solutions across the same codebase. Itis delivered as a native macOS tool designed for high-performance agent execution, giving engineers a centralized interface to observe agent progress and manage tasks.Starting Price: $99 per year -
24
Bun
Bun
Bun is a fast, all-in-one JavaScript, TypeScript, and JSX toolkit that ships as a single executable and combines a high-performance runtime, package manager, test runner, and bundler designed as a drop-in replacement for Node.js with broad compatibility and dramatically reduced startup times and memory usage. Written in Zig and powered by Apple’s JavaScriptCore, Bun can execute JavaScript/TypeScript files, scripts, and packages with significantly faster performance than traditional tooling while supporting zero-config TypeScript, JSX, and React out of the box. Its built-in package manager installs dependencies up to 30x faster than npm with workspaces, global caching, migration support, and dependency auditing. Bun’s test runner is Jest-compatible with built-in coverage and concurrent execution, and the bundler processes TypeScript, JSX, CSS, and more without configuration, including support for single-file executables.xx -
25
ZeroClaw
ZeroClaw
ZeroClaw is a Rust-native autonomous AI agent framework engineered for teams that require fast, secure, and highly modular agent infrastructure. It is designed as a compact, production-ready runtime that launches quickly, runs efficiently, and scales through interchangeable providers, channels, memory systems, and tools. Built around a trait-based architecture, ZeroClaw allows developers to swap model backends, communication layers, and storage implementations through configuration changes without rewriting core code, reducing vendor lock-in and improving long-term maintainability. It emphasizes a minimal footprint, shipping as a single binary of about 3.4 MB with startup times under 10 milliseconds and very low memory usage, making it suitable for servers, edge devices, and low-power hardware. Security is a first-class design goal, with sandbox controls, filesystem scoping, allowlists, and encrypted secret handling enabled by default.Starting Price: Free -
26
Orchids
Orchids.app
Orchids is an AI-powered app builder designed to help developers create any type of application across any tech stack. It supports building web apps, mobile apps, games, CLI tools, Slack bots, AI agents, and more using popular frameworks like React, Next.js, Python, Swift, and Flutter. The platform works with existing AI subscriptions such as ChatGPT, Claude Code, Gemini, and GitHub Copilot, or any API key. Positioned as a full-stack coding agent, Orchids assists with end-to-end app development from idea to execution. It is trusted by over one million users and Fortune 500 teams worldwide. Orchids ranks highly on industry benchmarks, including #1 positions on App Bench and UI Bench. Available for macOS, it provides developers with a flexible and powerful environment for building applications quickly.Starting Price: $21 per month -
27
Amazon Bedrock AgentCore
Amazon
Amazon Bedrock AgentCore enables you to deploy and operate highly capable AI agents securely at scale, offering infrastructure purpose‑built for dynamic agent workloads, powerful tools to enhance agents, and essential controls for real‑world deployment. It works with any framework and any foundation model in or outside of Amazon Bedrock, eliminating the undifferentiated heavy lifting of specialized infrastructure. AgentCore provides complete session isolation and industry‑leading support for long‑running workloads up to eight hours, with native integration to existing identity providers for seamless authentication and permission delegation. A gateway transforms APIs into agent‑ready tools with minimal code, and built‑in memory maintains context across interactions. Agents gain a secure browser runtime for complex web‑based workflows and a sandboxed code interpreter for tasks like generating visualizations.Starting Price: $0.0895 per vCPU-hour -
28
VoltAgent
VoltAgent
VoltAgent is an open source TypeScript AI agent framework that enables developers to build, customize, and orchestrate AI agents with full control, speed, and a great developer experience. It provides a complete toolkit for enterprise-level AI agents, allowing the design of production-ready agents with unified APIs, tools, and memory. VoltAgent supports tool calling, enabling agents to invoke functions, interact with systems, and perform actions. It offers a unified API to seamlessly switch between different AI providers with a simple code update. It includes dynamic prompting to experiment, fine-tune, and iterate AI prompts in an integrated environment. Persistent memory allows agents to store and recall interactions, enhancing their intelligence and context. VoltAgent facilitates intelligent coordination through supervisor agent orchestration, building powerful multi-agent systems with a central supervisor agent that coordinates specialized agents.Starting Price: Free -
29
Kickstart
Kickstart
Kickstart is a comprehensive Next.js boilerplate designed to expedite the development of full-stack React applications. It integrates modern frontend technologies like React and Next.js with a backend powered by Express and Firebase, all structured with TypeScript for type safety. The platform includes a suite of UI components built with Chakra UI and implements authentication via Firebase Auth. For data management, Kickstart utilizes Cloud Firestore and Cloud Storage, while payment processing is facilitated through Stripe, supporting payments, invoices, subscriptions, and coupons. Content management is streamlined with a Prismic CMS-powered blog, and email marketing is supported through ConvertKit integration. By providing these pre-configured features, Kickstart enables developers to focus on building unique aspects of their applications without the overhead of setting up foundational components.Starting Price: $249 per site -
30
Volca
Volca
Volca is a comprehensive SaaS boilerplate and starter kit designed to accelerate the development and deployment of SaaS applications. It provides a monorepo that includes a high-performance static landing page, a React dashboard, and a Node.js REST API. The landing page is pre-rendered as static HTML files, ensuring quick load times and improved search engine rankings, and is built with React and TypeScript. The dashboard serves as the primary interface for users, offering features such as user registration, subscription management, and team collaboration, allowing users to create projects and invite team members. The backend API is built with Node.js and TypeScript, operating on a serverless architecture that is cost-effective, secure, and performant. Volca integrates secure and reliable authentication out of the box with AWS Cognito, supports social sign-in through providers like Apple, Google, and Facebook, and includes subscription management with Stripe.Starting Price: $12 per month -
31
Metorial
Metorial
Metorial is an open source, developer-centric integration platform that streamlines the creation, deployment, monitoring, and scaling of agentic AI applications by connecting models to tools, data, and APIs via the Model Context Protocol. With a catalog of over 600 verified MCP “servers,” developers can give their agents capabilities like interacting with Slack, Google Calendar, Notion, APIs, databases, or other systems in just a few clicks or one API call. Metorial’s infrastructure is serverless and built for scale, deploying MCP servers in three clicks or an API call, supporting “zero to millions” of requests, and offering out-of-the-box observability including detailed logging, tracing, session replay, and error alerts. A full set of SDKs (Python, TypeScript) is provided, and every interaction is traceable so teams can audit and optimize agent behaviour. Whether self-hosted or cloud-powered, Metorial offers enterprise-grade security and multi-tenant support.Starting Price: $35 per month -
32
Design Shift
Design Shift
Design Shift transforms Uizard designs into fully functional web components, simplifying the transition from design to development. By accepting SVG exports from Uizard, our tool breaks down designs into customizable sub-components and generates framework-compatible code for React, Angular, and Vue. With intelligent style mapping and GPT-4o-powered precision, Design Shift eliminates the manual work of resizing, styling, and scripting, allowing developers to focus on building impactful applications.Starting Price: $0 -
33
CoreIDE
CoreIDE
CoreIDE is a full stack IDE for Java, JavaScript, Node.js and TypeScript developers who work on Spring, Spring Boot, React, Express, Vue, Backbone, AngularJS and other web framework based applications. The IDE is not only limited to web development, you can use it to develop other type of projects like desktop, command line, mobile or stand alone applications. It's free Community version contains all the available features. Java • JavaScript • Node.js • TypeScript • Spring • Spring Boot • React • Express • Vue • Backbone • AngularJSStarting Price: Free -
34
Magic UI
Magic UI
Magic UI is a free and open source UI library crafted for design engineers, offering over 150 animated components and effects built with React, TypeScript, Tailwind CSS, and Framer Motion. It serves as a perfect companion to shadcn/ui, enabling developers to create visually engaging landing pages and user interfaces with minimal effort. It includes a diverse range of components such as animated text, buttons, backgrounds, device mockups, and special effects like confetti and neon gradients. Magic UI Pro extends this offering with 50+ professionally designed blocks and templates tailored for various applications, including AI agents, developer tools, mobile apps, SaaS products, startups, and portfolios. These templates are built with React, Next.js, Tailwind CSS, and Framer Motion, ensuring responsive design and smooth animations.Starting Price: Free -
35
Naptha
Naptha
Naptha is a modular AI platform for autonomous agents that empowers developers and researchers to build, deploy, and scale cooperative multi‑agent systems on the agentic web. Its core innovations include Agent Diversity, which continuously upgrades performance by orchestrating diverse models, tools, and architectures; Horizontal Scaling, which supports collaborative networks of millions of AI agents; Self‑Evolved AI, where agents learn and optimize themselves beyond human‑designed capabilities; and AI Agent Economies, which enable autonomous agents to generate useful goods and services. Naptha integrates seamlessly with popular frameworks and infrastructure, LangChain, AgentOps, CrewAI, IPFS, NVIDIA stacks, and more, via a Python SDK that upgrades existing agent frameworks with next‑generation enhancements. Developers can extend or publish reusable components on the Naptha Hub, run full agent stacks anywhere a container can execute on Naptha Nodes. -
36
Agent Builder
OpenAI
Agent Builder is part of OpenAI’s tooling for constructing agentic applications, systems that use large language models to perform multi-step tasks autonomously, with governance, tool integration, memory, orchestration, and observability baked in. The platform offers a composable set of primitives—models, tools, memory/state, guardrails, and workflow orchestration- that developers assemble into agents capable of deciding when to call a tool, when to act, and when to halt and hand off control. OpenAI provides a new Responses API that combines chat capabilities with built-in tool use, along with an Agents SDK (Python, JS/TS) that abstracts the control loop, supports guardrail enforcement (validations on inputs/outputs), handoffs between agents, session management, and tracing of agent executions. Agents can be augmented with built-in tools like web search, file search, or computer use, or custom function-calling tools. -
37
UploadThing
UploadThing
UploadThing is an open source file upload solution designed for full-stack TypeScript applications. It simplifies the process of adding file uploads by allowing developers to define File Routes that specify the types of files allowed, their sizes, and quantities. It provides SDKs for various frameworks, including Next.js, Astro, SolidStart, SvelteKit, and Nuxt, as well as backend adapters for Express, Fastify, H3, and others. Client-side uploads are facilitated through components and hooks, enabling seamless integration with frontend frameworks like React and Vue. UploadThing emphasizes a balance between security and simplicity by handling authentication on the developer's server while managing the upload process on its own infrastructure. This approach allows for server-side authorization without the need to process files on the developer's server.Starting Price: $10 per month -
38
Gobii
Gobii
Gobii is a cloud-hosted platform that enables you to spin up fully managed browser-automation agents via API, allowing tasks like web-based research, form-filling, data extraction, and multi-step workflows to be automated at scale. These agents operate like “always-on employees” that can browse websites, even those without APIs, navigate dynamic content, handle JavaScript, and even rotate proxies automatically. Users can create agents, assign them prompts or tasks, and retrieve structured JSON outputs or live previews of the agent’s browser actions. Gobii supports synchronous and asynchronous task execution, secret handling for things like login credentials, schema-enforced output validation, and integrates with popular programming languages (Python, Node.js) for seamless implementation. The platform emphasises scalability (hundreds of tasks in parallel), enterprise-grade security (audit logs, proxies, task management), and a simple developer experience.Starting Price: $30 per month -
39
Nimbalyst
Nimbalyst
Nimbalyst is a free, local, visual workspace for building with Claude Code and Codex. Nimbalyst provides a session and task manager and visual editors for markdown, mockups, diagrams, drawings, csv, mcp, data-models, code, sessions, and tasks. Nimbalyst enables builders (developers, product managers, designers, and others) working with agents to achieve: - Higher bandwidth: a visual workspace to collaborate with your agents on sessions, files, and tasks. - Richer context: live diffs, linked files, and integrated editors keep you and your agents on the same page - Faster workflows: your agent builds custom tools and visual interfaces for your use cases right inside the workspace where you workStarting Price: $0/user/month -
40
Origon
Origon
Origon is a full-stack AI agent development and operations platform engineered as a unified “Agentic Operating System” that supports the entire lifecycle of autonomous AI systems from design to deployment and observability. It offers an intuitive Studio for visual, drag-and-drop agent creation and configuration, Sessions for real-time observation, behavior tracing, and debugging, and Insights dashboards for performance analytics, reliability tracking, and outcome measurement in one place. Origon runs natively on dedicated infrastructure optimized for low-latency performance and security, avoiding dependency on external cloud APIs, and includes a built-in knowledge engine that connects agents to contextual memory and domain data so responses stay grounded and consistent. It supports hundreds of connectors and APIs, including chat, voice, WhatsApp, SMS, email, and telephony, and lets agents execute code and interact with real systems with a single click.Starting Price: $200 per month -
41
Subconscious
Subconscious
Subconscious is a developer-first platform designed to build, deploy, and scale production-ready AI agents by handling the hardest parts of agent architecture automatically. It provides a complete agent system that manages context, orchestrates tools, and enables long-horizon reasoning, allowing developers to focus on defining goals and capabilities rather than stitching together complex infrastructure. It introduces a unified inference engine composed of a co-designed model and runtime that decomposes complex tasks, generates workflows dynamically, and executes multi-step reasoning without manual context engineering or multi-agent orchestration. Unlike traditional approaches that rely on chaining APIs and frameworks, Subconscious enables agents to take in goals and tools, then autonomously plan, reason, and act with minimal human intervention, effectively creating systems that can “get the job done” on their own.Starting Price: $2 per 1M tokens -
42
Vivgrid
Vivgrid
Vivgrid is a development platform for AI agents that emphasizes observability, debugging, safety, and global deployment infrastructure. It gives you full visibility into agent behavior, logging prompts, memory fetches, tool usage, and reasoning chains, letting developers trace where things break or deviate. You can test, evaluate, and enforce safety policies (like refusal rules or filters), and incorporate human-in-the-loop checks before going live. Vivgrid supports the orchestration of multi-agent systems with stateful memory, routing tasks dynamically across agent workflows. On the deployment side, it operates a globally distributed inference network to ensure low-latency (sub-50 ms) execution and exposes metrics like latency, cost, and usage in real time. It aims to simplify shipping resilient AI systems by combining debugging, evaluation, safety, and deployment into one stack, so you're not stitching together observability, infrastructure, and orchestration.Starting Price: $25 per month -
43
JSX.Design
Skyslit Network Private Limited
JSX.Design is a no-code WYSIWYG editor for React developers, letting you visually build responsive UIs while generating clean JSX code. Drag and drop components, customize styles, and sync code in real-time. Speed up development without losing control! -
44
Manifold Security
Manifold Security
Manifold Security is an AI Detection and Response platform built to secure autonomous AI agents operating on enterprise endpoints, addressing a critical gap in traditional cybersecurity approaches that focus primarily on user activity or model inputs and outputs. It provides runtime visibility into what AI agents actually do, capturing their behavior as they interact with systems, execute commands, access files, and call APIs across development environments and production infrastructure. Observing agent activity directly on endpoints without requiring additional infrastructure such as proxies or gateways, it enables organizations to monitor real actions rather than just prompts or responses. It maps relationships between agents, tools, and connected services, offering a clear view of which agents are active, what permissions they use, and how they interact with internal and external resources. -
45
Paygent
Paygent
Paygent is the agentic profitability and monetization infrastructure platform for AI-native businesses. While legacy billing tools track revenue, Paygent tracks what actually matters for AI companies: margin per agent, real gross profit per customer, and the cost of every LLM call, API request, and compute event in real time. Key capabilities: - Real-time LLM cost attribution per agent, per customer, and per workflow - Predictive pricing simulation and model pricing strategies before committing to production - Automated billing for usage-based, outcome-based, hybrid, and digital-employee pricing models - Automated invoicing and cost alerting to catch runaway agent loops before they damage margins Integrates natively via Node.js, Python, and Go SDKs, zero latency added to agent execution. Stop guessing at your margins. Start running AI agents as a profitable business. -
46
NullClaw
NullClaw
NullClaw is an ultra-lightweight autonomous AI assistant infrastructure built in Zig and distributed as a single static binary designed to run efficiently on virtually any hardware. It emphasizes extreme performance and minimal resource usage, shipping as a roughly 678 KB executable that typically consumes about 1 MB of RAM and boots in under two milliseconds. It eliminates traditional runtime overhead by avoiding virtual machines, interpreters, and complex dependency chains, allowing developers to deploy agents simply by running the compiled binary. Despite its small footprint, the framework provides a full autonomous agent stack with support for more than 22 model providers, 18 communication channels, hybrid vector and FTS5 memory, streaming, voice, and multi-layer sandboxing. Security is built in through workspace scoping, explicit command allowlists, encrypted secrets, and strict sandbox isolation using tools such as Landlock, Firejail, or Docker.Starting Price: Free -
47
Kottster
Kottster
Kottster is an open source, self-hosted Node.js admin panel that enables developers to create instant, customizable interfaces for managing database records. It supports databases, allowing users to connect their database and generate admin pages within minutes. It offers features like data viewing with pagination, sorting, filtering, and search capabilities; data management with options to add, edit, and delete records; and automatic detection of table relationships, including one-to-one, one-to-many, and many-to-many associations. Built on a modern tech stack comprising Node.js, React, Remix, Vite, Tailwind, and TypeScript, Kottster provides a smooth development experience. Developers can extend and customize the generated JavaScript and TypeScript code to fit specific project needs. It includes built-in authentication and user management, enabling role assignment, and access control for team collaboration.Starting Price: Free -
48
Journey
Journey
Journey is a registry platform designed for discovering, installing, and sharing reusable AI agent workflow kits that give agents new capabilities instantly. It allows users to browse a library of pre-built workflows, known as “kits,” which can be installed directly into AI agents through a simple command or prompt, eliminating the need for manual setup or complex configuration. Each kit represents a complete, portable workflow that bundles together system prompts, behavioral instructions, tool integrations, model preferences, and structured task sequences, enabling agents to execute consistent, repeatable processes across different environments. It supports integration with multiple agent systems such as Claude, Cursor, Codex, and other compatible tools, making it flexible and adaptable for various development setups. Journey also provides tools for teams to manage workflows collaboratively, including version control, permission management, and centralized coordination. -
49
Ignite UI
Infragistics
Build modern, data-rich applications faster with Ignite UI - the most complete UI toolkit with 120+ enterprise-grade components for every major framework. Whether you're working in Angular, React, Blazor, Web Components, or desktop platforms like WPF and Windows Forms, Ignite UI delivers blazing-fast data grids, powerful charting, and responsive layouts built for performance and scalability. From advanced tools like Pivot Grid, Spreadsheet, and DockManager, to developer-friendly CLI support and global theming, everything is designed to streamline development and deliver sleek, high-performance experiences across devices.Starting Price: $1355 per year -
50
TraceRoot.AI
TraceRoot.AI
TraceRoot.AI is an open source, AI-native observability and debugging platform designed to help engineering teams resolve production issues faster. It consolidates telemetry into a single correlated execution tree that provides causal context for failures. AI agents operate over this structured view to summarize issues, pinpoint likely root causes, and even suggest actionable fixes or draft GitHub issues and pull requests. It offers interactive trace exploration with zoomable log clusters, span and latency views, and code-linked insights. Lightweight SDKs for Python and TypeScript enable seamless instrumentation using OpenTelemetry, with support for both self-hosted and cloud deployment. Human-in-the-loop interaction is central: developers can guide reasoning by selecting relevant spans or logs, then verify agent reasoning through traceable context.Starting Price: $49 per month
