Best AI Agent Builders - Page 4
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Compare the Top AI Agent Builders as of April 2026 - Page 4
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1
PydanticAI
Pydantic
PydanticAI is a Python-based agent framework designed to simplify the development of production-grade applications using generative AI. Built by the team behind Pydantic, the framework integrates seamlessly with popular AI models such as OpenAI, Anthropic, Gemini, and others. It offers type-safe design, real-time debugging, and performance monitoring through Pydantic Logfire. PydanticAI also provides structured responses by leveraging Pydantic to validate model outputs, ensuring consistency. The framework includes a dependency injection system to support iterative development and testing, as well as the ability to stream LLM outputs for rapid validation. It is ideal for AI-driven projects that require flexible and efficient agent composition using standard Python best practices. We built PydanticAI with one simple aim: to bring that FastAPI feeling to GenAI app development.Starting Price: Free -
2
TIXAE AGENTS.ai
TIXAE AGENTS.ai
TIXAE Agents.ai is a platform designed to simplify the creation, deployment, and management of AI-powered voice and text agents. It offers tools for building customizable agents, importing data from sources like PDFs and URLs, and deploying across channels such as WhatsApp, Discord, and Instagram. The platform includes real-time analytics, live handoff features, and white-label branding options, making it suitable for both developers and non-technical users. Create and customize an agent for yourself or your client. Organize and control the data your agent will use. Use our scrape tools to pull data from URLs, upload PDFs, or link other relevant documents. Refine your agent by adjusting the prompts to improve responses. Run AB testing to find the best version. Launch your voice and text agents on popular platforms such as WhatsApp, Discord, Instagram, Facebook, Meta, and more in just seconds. With TIXAE AGENTS.ai, your agents will be wherever your users are.Starting Price: $29 per month -
3
LaVague
LaVague
LaVague is an open source framework designed to empower developers to build and deploy AI-driven web agents with minimal code. By leveraging Large Action Models (LAMs), LaVague enables the automation of complex web-based tasks through natural language instructions. Developers can create agents capable of navigating websites, extracting information, and performing actions by specifying objectives in plain language. The framework supports various drivers, including Selenium and Playwright, and offers customizable configurations to suit diverse use cases. Additionally, LaVague provides specialized tools for quality assurance engineers, such as LaVague QA, which automates test writing by converting Gherkin specifications into executable tests. The platform emphasizes customization, privacy, and performance, allowing agents to utilize local models and integrate seamlessly with existing systems.Starting Price: Free -
4
LiveKit
LiveKit
LiveKit is a real-time platform that enables developers to build video, voice, and data capabilities into their applications. Building on WebRTC, it supports a broad range of frontend and backend platforms. LiveKit's network is optimized for ultra-low latency, extreme resiliency, and massive scale. Our team is distributed across the world, and our infrastructure delivers billions of minutes of audio and video every month. LiveKit provides SDK support across all major platforms, allowing you to code your application with a LiveKit client natively designed for your platform of choice. You can self-host LiveKit for free without changing a line of code, as the entire ecosystem of tools and services is Apache 2.0 open source. LiveKit offers a feature-rich platform, including SSO and RBAC for teams, enterprise-grade security with end-to-end encryption, noise and echo cancellation, session recording, stream ingestion, and moderation tools.Starting Price: $50 per month -
5
SimplAI
SimplAI
SimplAI is a platform designed to help businesses build secure, scalable, and reliable Agentic AI applications quickly. It enables the creation of AI agents, chatbots, virtual assistants, and workflow automation tools to streamline operations and enhance productivity. SimplAI provides tools for AI chains, process automation, and conversational AI, making it easier for enterprises to implement AI-driven solutions. The platform accelerates the development process, allowing businesses to go from proof of concept to production in just a few weeks. It supports a variety of industries, including financial services, healthcare, telecom, and more, with a focus on responsible AI and integration flexibility.Starting Price: $99/month -
6
scalerX.ai
scalerX.ai
Launch & train your own personalized AI-RAG agents on Telegram. With scalerX you can create personalized RAG AI-powered agents trained with your knowledge base in minutes, no code required. These AI agents are integrated directly into Telegram, including groups and channels. Awesome for education, sales, customer service, entertainment, automating community moderation and engagement. Agents can behave as chatbots in solo, groups and channels, support text-to-text, text-to-image, voice. You can set agent usage quotas and permissions using ACLs so only authorized users can access your agents. Training your agents is easy: create your agent and upload files to your bots knowledge base, auto-sync from Dropbox, Google Drive or scrape web pages.Starting Price: $5/month -
7
Vogent
Vogent
Vogent is an all-in-one platform for building humanlike, intelligent, and effective voice agents. It offers a highly authentic, low-latency live voice AI capable of making phone calls up to one hour long and executing follow-up tasks. Vogent automates calls in industries such as healthcare, construction, logistics, and travel. The platform provides a custom end-to-end pipeline for transcription, reasoning, and speech, resulting in extremely low latency and humanlike conversations. Vogent's in-house language models have been trained on millions of phone conversations across hundreds of different task types, performing as well as human agents when prompted or fine-tuned with minimal examples. Developers can dispatch thousands of calls with a few lines of code and automate downstream workflows based on outcomes. The platform supports REST and GraphQL APIs, and offers a no-code dashboard for creating agents, uploading knowledge bases, tracking dials, and exporting transcripts.Starting Price: 9¢ per minute -
8
FastAgency
FastAgency
FastAgency is an open source framework designed to accelerate the deployment of multi-agent AI workflows from prototype to production. It provides a unified programming interface compatible with various agentic AI frameworks, enabling developers to deploy agentic workflows in both development and production settings. With features like multi-runtime support, seamless external API integration, and a command-line interface for orchestration, FastAgency simplifies the creation of scalable, production-ready architectures for serving AI workflows. Currently, it supports the AutoGen framework, with plans to extend support to CrewAI, Swarm, and LangGraph in the future. Developers can easily switch between frameworks, choosing the best one for their project's specific needs. FastAgency also features a common programming interface that enables the development of core workflows once and reuse them across various user interfaces without rewriting code.Starting Price: Free -
9
DemoGPT
Melih Ünsal
DemoGPT is an open source platform that simplifies the creation of LLM (Large Language Model) agents by providing an all-in-one toolkit. It offers tools, frameworks, prompts, and models for rapid agent development. The platform automatically generates LangChain code, which can be used for creating interactive applications with Streamlit. DemoGPT translates user instructions into functional applications through a multi-step process: planning, task creation, and code generation. It supports a streamlined approach to building AI-powered agents, offering an accessible environment for developing sophisticated, production-ready solutions with GPT-3.5-turbo. Additionally, it integrates API usage and external API interaction in future updates.Starting Price: Free -
10
potpie
potpie
Potpie is an open source platform that enables developers to create AI agents tailored to their codebases, automating tasks such as debugging, testing, system design, onboarding, code review, and documentation. By transforming your codebase into a comprehensive knowledge graph, Potpie's agents gain deep contextual understanding, allowing them to perform engineering tasks with high precision. It offers over five ready-to-use agents, including those specialized in stack trace analysis and integration test generation. Developers can also build custom agents using simple prompts, facilitating seamless integration into existing workflows. Potpie provides a user-friendly chat interface and supports a VS Code extension for direct integration into development environments. With features like multi-LLM support, developers can integrate various AI models to optimize performance and flexibility.Starting Price: $ 1 per month -
11
Lemni
Lemni
Lemni is an AI platform that enables businesses to set up custom AI agents for all customer interactions, ensuring personalized engagement as they scale. These agents can handle various tasks, including phone calls, email support, and proactive outreach, allowing companies to grow without proportionally increasing their headcount. It is designed for quick deployment, enabling users to establish AI agents in minutes without extensive technical expertise. Currently, Lemni is in the pre-launch phase, inviting interested users to join their waitlist for early access. Today’s customers expect speed, accuracy, and personalization, yet they often find themselves stuck with repetitive chatbots, form letters, and long waits before action. It’s time to bring back the personal touch, at scale. AI agents act like trained employees, ready to take action while you stay in control. With Lemni, you can design every customer interaction and make it personal.Starting Price: $0.04 per interaction -
12
OWL
CAMEL-AI
OWL (Optimized Workforce Learning) is an advanced framework designed for multi-agent collaboration in real-world task automation. Built on the CAMEL-AI platform, OWL aims to revolutionize AI agent interactions, enabling more efficient, natural, and resilient task automation across various industries. It achieves high performance, ranking #1 among open-source frameworks on the GAIA benchmark with a score of 58.18. OWL features real-time information sharing, dynamic task management, and integration with various tools and platforms, supporting collaborative AI agents in completing complex tasks.Starting Price: Free -
13
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 -
14
Agentverse
Fetch.ai
Agentverse is an intuitive platform designed for creating, testing, and deploying customizable AI agents. It offers a cloud-based integrated development environment that simplifies agent development, allowing users to build, train, and integrate agents into various systems without extensive coding knowledge. It provides pre-built agent templates and use cases, enabling quick deployment and customization to serve a variety of purposes. Agents hosted in Agentverse are registered in the Almanac, facilitating discovery and interaction within the Fetch.ai network. It also supports collaborative development through its Teams feature, allowing multiple users to work together on agent projects. Security is emphasized with containerized environments ensuring data protection and compliance with industry standards. Additionally, Agentverse offers a marketplace where users can explore and connect with other registered agents.Starting Price: Free -
15
TalkToAgent
TalkToAgent
TalkToAgent is an AI-powered platform that enables businesses to automate visitor interactions, handle inquiries, capture leads, and deliver real-time results without the need for coding. It offers uninterrupted 24/7 engagement for every visitor, providing swift and intelligent responses that surpass traditional chatbots. It ensures around-the-clock selling by managing visitors day and night, guaranteeing no leads are missed. TalkToAgent engages visitors with AI-powered responses tailored to specific industry needs, effortlessly converting them into valuable leads. Businesses can fully personalize the widget to reflect their brand, creating a cohesive and engaging customer experience. Additionally, the platform provides insightful analytics, including chat data insights like landing page performance and visitor demographics, to refine engagement strategies and drive growth.Starting Price: $49 per month -
16
Activepieces
Activepieces
Activepieces is an AI-powered, open-source, no-code automation platform designed to help teams streamline workflows and integrate AI seamlessly into everyday tasks. With over 280 pre-built automations (MCPs), Activepieces allows users to connect to popular apps, trigger processes, and even create personalized AI agents with minimal effort. The platform includes features like human input for approvals, a robust automation builder, and AI-assisted code for more advanced workflows. It empowers decentralized teams by offering tools for collaboration, governance, and security, making it suitable for organizations of all sizes, from startups to enterprises.Starting Price: $25/month -
17
Agent Development Kit (ADK)
Google
The Agent Development Kit (ADK) is a flexible, open-source framework for building and deploying AI agents. It is tightly integrated with Google’s ecosystem, including Gemini models, and supports popular large language models (LLMs). ADK simplifies the development of both simple and complex AI agents, providing a structured environment for building dynamic workflows and multi-agent systems. With built-in tools for orchestration, deployment, and evaluation, ADK helps developers create scalable, modular AI solutions that can be easily deployed on platforms like Vertex AI or Cloud Run.Starting Price: Free -
18
Agno
Agno
Agno is a lightweight framework for building agents with memory, knowledge, tools, and reasoning. Developers use Agno to build reasoning agents, multimodal agents, teams of agents, and agentic workflows. Agno also provides a beautiful UI to chat with agents and tools to monitor and evaluate their performance. It is model-agnostic, providing a unified interface to over 23 model providers, with no lock-in. Agents instantiate in approximately 2μs on average (10,000x faster than LangGraph) and use about 3.75KiB memory on average (50x less than LangGraph). Agno supports reasoning as a first-class citizen, allowing agents to "think" and "analyze" using reasoning models, ReasoningTools, or a custom CoT+Tool-use approach. Agents are natively multimodal and capable of processing text, image, audio, and video inputs and outputs. The framework offers an advanced multi-agent architecture with three modes, route, collaborate, and coordinate.Starting Price: Free -
19
Swarm
OpenAI
Swarm is an experimental, educational framework developed by OpenAI to explore ergonomic, lightweight multi-agent orchestration. It is designed to be scalable and highly customizable, making it suitable for scenarios involving a large number of independent capabilities and instructions that are challenging to encode into a single prompt. Swarm operates entirely on the client side and, like the Chat Completions API it utilizes, does not store state between calls. This stateless nature allows for the construction of scalable, real-world solutions without a steep learning curve. Swarm agents are distinct from assistants in the assistants API; they are named similarly for convenience but are otherwise completely unrelated. It includes examples demonstrating fundamentals such as setup, function calling, handoffs, and context variables, as well as more complex scenarios like a multi-agent setup for handling different customer service requests in an airline context.Starting Price: Free -
20
OpenAI Agents SDK
OpenAI
The OpenAI Agents SDK enables you to build agentic AI apps in a lightweight, easy-to-use package with very few abstractions. It's a production-ready upgrade of our previous experimentation for agents, Swarm. The Agents SDK has a very small set of primitives, agents, which are LLMs equipped with instructions and tools; handoffs, which allow agents to delegate to other agents for specific tasks; and guardrails, which enable the inputs to agents to be validated. In combination with Python, these primitives are powerful enough to express complex relationships between tools and agents, and allow you to build real-world applications without a steep learning curve. In addition, the SDK comes with built-in tracing that lets you visualize and debug your agentic flows, evaluate them, and even fine-tune models for your application.Starting Price: Free -
21
Hugging Face Transformers
Hugging Face
Transformers is a library of pretrained natural language processing, computer vision, audio, and multimodal models for inference and training. Use Transformers to train models on your data, build inference applications, and generate text with large language models. Explore the Hugging Face Hub today to find a model and use Transformers to help you get started right away. Simple and optimized inference class for many machine learning tasks like text generation, image segmentation, automatic speech recognition, document question answering, and more. A comprehensive trainer that supports features such as mixed precision, torch.compile, and FlashAttention for training and distributed training for PyTorch models. Fast text generation with large language models and vision language models. Every model is implemented from only three main classes (configuration, model, and preprocessor) and can be quickly used for inference or training.Starting Price: $9 per month -
22
Superexpert.AI
Superexpert.AI
Superexpert.AI is an open source platform that enables developers to build advanced, multi-task AI agents without writing code. It supports the creation of versatile AI solutions, from simple chatbots to sophisticated agents capable of handling hundreds of tasks. It is extensible, allowing integration of custom tools and functions, and is compatible with various hosting providers, including Vercel, AWS, GCP, and Azure. Superexpert.AI offers features like Retrieval-Augmented Generation (RAG) for efficient document retrieval, multi-model compatibility with AI models such as OpenAI, Anthropic, and Gemini, and a modern web application architecture built with Next.js, TypeScript, and PostgreSQL. It provides a user-friendly interface for configuring agents and tasks, making it accessible for users without programming experience.Starting Price: Free -
23
Nelly
Nelly
Nelly is a comprehensive AI agent platform that empowers users to build, test, distribute, and utilize AI agents without any coding required. Through Nelly Studio, users can create custom AI agents using natural language instructions, formatting them with headings, lists, and other content types. These agents can be equipped with various tools, such as a browser and a database, to accomplish their tasks. Complex tasks can be broken down into smaller problems and delegated to specialized sub-agents, allowing users to build a team of agents to handle intricate workflows. With Nelly, users can have natural, flowing conversations with their AI agents, which understand context and maintain coherent dialogue, eliminating the need for special commands or syntax. Conversations are organized into threads for better performance and organization. Users can also create departments and organize their agents using drag and drop, building their ideal AI team.Starting Price: $9 per month -
24
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 -
25
AgentSea
AgentSea
AgentSea is an open source platform designed to build, deploy, and share AI agents with ease. It delivers a collection of libraries and tools for building AI agent apps, favoring the UNIX philosophy of doing one thing well. Tools can be used individually or stacked together into a single agent app, and are compatible with frameworks like LlamaIndex and LangChain. Key components include SurfKit, a Kubernetes-style orchestrator for agents; DeviceBay, offering pluggable devices like file systems and desktops; ToolFuse, a library that wraps scripts, third-party apps, and APIs as Tool implementations; AgentD, a daemon making a Linux desktop OS accessible to bots; AgentDesk, a library for running AgentD-powered VMs; Taskara, for task management; ThreadMem, for building multi-role persistent threads; and MLLM, simplifying communication with multiple LLMs and multimodal LLMs. AgentSea also offers alpha agents like SurfPizza and SurfSlicer, which navigate GUIs using multimodal approaches.Starting Price: Free -
26
Agent Squad
Amazon
Agent Squad is a flexible and powerful open source framework developed by AWS for managing multiple AI agents and handling complex conversations. It enables multi-agent orchestration, allowing seamless coordination and leveraging of multiple AI agents within a single system. It offers dual language support, being fully implemented in both Python and TypeScript. Intelligent intent classification dynamically routes queries to the most suitable agent based on context and content. Agent Squad supports both streaming and non-streaming responses from different agents, ensuring flexible agent responses. It maintains and utilizes conversation context across multiple agents for coherent interactions. The architecture is extensible, allowing easy integration of new agents or customization of existing ones to fit specific needs. Agent Squad can be deployed universally, running anywhere from AWS Lambda to local environments or any cloud platform.Starting Price: Free -
27
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 -
28
Recomi
Powerdrill
Recomi is a no-code AI agent builder by Powerdrill that enables users to create and deploy intelligent chatbots trained on their own data. With Recomi, you can upload various file types, including PDFs, Excel, Word, PowerPoint, and Markdown, or connect directly to Google Drive to use documents as the knowledge base for your AI agents. It supports seamless integration with websites through chat bubbles or iframes, making it compatible with builders like Webflow, Framer, Wix, and Bubble. You can preview how an AI agent would appear on your site by entering your URL and clicking "Start Demo". Recomi offers a user-friendly interface for building AI agents without any coding. After signing in, you can create an agent by uploading files, naming it, and configuring optional settings. Once created, the AI agent can answer questions based on the uploaded data. Collaboration features allow you to invite team members to specific agents, facilitating shared exploration and insights.Starting Price: $50 per month -
29
Solar
Solar
Solar is a fast, flexible AI-powered platform that enables users to build custom AI agents, workflow automations, and full-stack applications, from Python backends and databases to modern front-ends and authentication, in seconds via a visual editor and collaborative canvas. It combines the power of code with no-code readability, offering integrations for email, scraping, LLM calls, tables, file storage, logic, and more, all deployable with a single click. Solar supports robust enterprise features including role-based access control, guardrails, and bring-your-own-cloud options, ensuring secure and scalable deployments. Backed by engineering expertise from renowned companies like Y Combinator, Palantir, and Jane Street, Solar caters to users ranging from solo engineers to collaborative teams by offering a generous free tier (500 credits and up to five projects), with paid plans unlocking advanced integrations, higher usage credits, team collaboration, and enterprise-grade security.Starting Price: $30 per month -
30
Shipable
Shipable
Shipable is a no-code AI agent platform designed to help agencies and consultants quickly build, customize, and deploy production-ready AI assistants for support, sales, onboarding, lead generation, and more across chat, voice, and embedded app environments. It enables the creation of complex, multilingual workflows without developers by combining system prompts, app integrations (email, CRM, internal tools), and payment or domain embedding in a simple visual builder. Agency teams can spin up lead-gen bots in minutes, which used to take days and multiple tools, as easily as cloning and modifying templates. With support for customer-facing voice functionality (including Arabic), Shipable scales from solo operators to larger studios, delivering robust, secure, and revenue-driving AI experiences with minimal overhead and engineering effort.Starting Price: $35 per month
