Best AI Agent Builders with a Free Trial of 2026

Vertex AI presents a robust collection of AI Agent Builders, empowering organizations to develop and personalize intelligent agents for designated tasks. These tools equip users to create, train, and launch agents capable of streamlining workflows, overseeing customer engagements, and improving decision-making. By utilizing pre-existing models, businesses can expedite the creation and implementation of AI agents, thereby shortening the time to launch. New users are welcomed with $300 in complimentary credits, allowing them the freedom to explore different agent-building features and tailor solutions to meet their specific business requirements. The platform boasts an intuitive interface and offers substantial support for ongoing enhancements, ensuring that companies can effectively scale their AI agent capabilities as needed.

LM-Kit.NET introduces sophisticated artificial intelligence capabilities for C# and VB.NET, featuring a robust enterprise architecture and a user-friendly AI Agent Builder. This tool empowers developers to create flexible agents for tasks such as text generation, translation, and context-sensitive decision-making. With integrated runtime support that simplifies the complexities of AI implementation, teams can rapidly prototype, deploy, and expand intelligent solutions, ensuring their software remains responsive to changing data and user requirements.

StackAI is an enterprise AI automation platform that allows organizations to build end-to-end internal tools and processes with AI agents. It ensures every workflow is secure, compliant, and governed, so teams can automate complex processes without heavy engineering. With a visual workflow builder and multi-agent orchestration, StackAI enables full automation from knowledge retrieval to approvals and reporting. Enterprise data sources like SharePoint, Confluence, Notion, Google Drive, and internal databases can be connected with versioning, citations, and access controls to protect sensitive information. AI agents can be deployed as chat assistants, advanced forms, or APIs integrated into Slack, Teams, Salesforce, HubSpot, ServiceNow, or custom apps. Security is built in with SSO (Okta, Azure AD, Google), RBAC, audit logs, PII masking, and data residency. Analytics and cost governance let teams track performance, while evaluations and guardrails ensure reliability before production. StackAI also offers model flexibility, routing tasks across OpenAI, Anthropic, Google, or local LLMs with fine-grained controls for accuracy. A template library accelerates adoption with ready-to-use workflows like Contract Analyzer, Support Desk AI Assistant, RFP Response Builder, and Investment Memo Generator. By consolidating fragmented processes into secure, AI-powered workflows, StackAI reduces manual work, speeds decision-making, and empowers teams to build trusted automation at scale.

Sendbird's AI Agent Builder is an innovative no-code solution that empowers businesses to design and oversee tailor-made AI agents for customer support across various communication platforms. Users can customize AI agent personalities and train them using pre-existing information, ensuring their responses remain consistent and reflective of the brand's values. The platform's "Actionbooks" feature simplifies the creation of agent workflows with user-friendly instructions, eliminating the need for programming skills. With in-built measures to mitigate biased responses and a safe testing environment, Sendbird guarantees a smooth, ethical, and scalable approach to AI-enhanced customer engagement. Additionally, it provides tools for monitoring performance to facilitate ongoing improvement.

Kimiyi is an intuitive platform that empowers organizations to create custom generative conversational AI agents, also known as digital humans, without any coding experience. Users can choose from pre-built AI agents or design their own, training them by uploading documents or website URLs to ensure relevant knowledge integration. These AI agents provide round-the-clock support, instantly answering inquiries and analyzing user interactions with real-time insights. Kimiyi offers customizable AI avatars featuring diverse ethnicities, ages, and styles to match any brand or audience. The platform supports various AI agent roles such as AI sales assistants, corporate trainers, customer service representatives, and office assistants. Businesses across industries like e-commerce, hospitality, and museums use Kimiyi to enhance customer engagement, automate workflows, and deliver personalized experiences. Kimiyi’s easy-to-follow video tutorials and expert support help users get started quickly and maximize AI’s benefits. It’s a powerful solution for companies looking to integrate conversational AI with minimal effort.

The most versatile and realistic AI speech software ever. Eleven delivers the most convincing, rich and authentic voices to creators and publishers looking for the ultimate tools for storytelling. The most versatile and versatile AI speech tool available allows you to produce high-quality spoken audio in any style and voice. Our deep learning model can detect human intonation and inflections and adjust delivery based upon context. Our AI model is designed to understand the logic and emotions behind words. Instead of generating sentences one-by-1, the AI model is always aware of how each utterance links to preceding or succeeding text. This zoomed-out perspective allows it a more convincing and purposeful way to intone longer fragments. Finally, you can do it with any voice you like.

Dialogflow by Google Cloud is a natural-language understanding platform that allows you to create and integrate a conversational interface into your mobile, web, or device. It also makes it easy for you to integrate a bot, interactive voice response system, or other type of user interface into your app, web, or mobile application. Dialogflow allows you to create new ways for customers to interact with your product. Dialogflow can analyze input from customers in multiple formats, including text and audio (such as voice or phone calls). Dialogflow can also respond to customers via text or synthetic speech. Dialogflow CX, ES offer virtual agent services for chatbots or contact centers. Agent Assist can be used to assist human agents in contact centers that have them. Agent Assist offers real-time suggestions to human agents, even while they are talking with customers.

CatDoes leverages artificial intelligence to simplify the app development process, allowing anyone to create fully native mobile apps using only natural language. Whether you're a business owner, startup, or entrepreneur, you can transform your app idea into reality without technical expertise. The platform handles everything from app design to back-end solutions, ensuring high-quality performance with React Native and Expo. With an intuitive interface, developers can build apps with database integration, API connections, and rapid deployment, making it easy to create production-ready apps quickly and efficiently.

AptlyStar.ai, developed by Aptly Technology Corporation, serves as an advanced AI platform that delivers creative solutions aimed at improving customer service and streamlining workflow automation. Its user-friendly tools enable businesses to create and implement AI-driven agents, fostering increased efficiency and productivity among their teams. By leveraging these capabilities, organizations can significantly enhance their operational performance and customer interactions.

Chatsby is an innovative B2B AI automation platform designed to enhance business scalability in customer communication, lead acquisition, and sales generation without needing additional staff. It streamlines conversations across various communication channels, providing instant responses and the ability to carry out tasks such as product searches, adding items to carts, booking appointments, or checking order statuses. All interactions are systematically recorded as structured data, enabling teams to monitor leads, evaluate results, and refine their follow-up strategies. The setup process is remarkably straightforward, requiring no coding expertise, and can be completed in just a few minutes. Users can manage their AI agents from a convenient dashboard, which allows for training, monitoring, and adjustment, with the option to intervene manually whenever necessary. By addressing challenges like lost leads, delayed responses, and monotonous tasks, Chatsby offers round-the-clock support that is both reliable and efficient. As a result, businesses enjoy quicker resolutions, reduced operational costs, and increased conversion rates, making it the most effective and rapid solution for expanding customer operations and transforming interactions into profit. Furthermore, Chatsby empowers organizations to focus on strategic growth while leaving routine tasks to automated systems.

IBM watsonx Assistant is a next-gen conversational AI solution—it that empowers a broader audience that includes non-technical business users, anyone in your organization to effortlessly build generative AI Assistants that deliver frictionless self-service experiences to customers across any device or channel, help boost employee productivity, and scale across your business. -User-friendly interface with drag-and-drop conversation builder and pre-built templates. -Out-of-the-box Large Language Models, Large Speech Models, Natural Language Processing and Understanding (NLP, NLU), and Intelligent Context Gathering, to better understand the context of each conversation in natural language. -Retrieval-augmented generation (RAG) for accurate, contextual, and up-to-date conversational answers around the clock, grounded in your company's knowledge base.

No coding is required to create AI voice assistants that can make outbound calls and answer inbound calls. They can also schedule appointments 24 hours a day. Forget expensive machine learning teams and lengthy development cycles. Synthflow allows you to create sophisticated, tailored AI agents with no technical knowledge or coding. All you need is your data and your ideas. Over a dozen AI agents are available for use in a variety of applications, including document search, process automaton, and answering questions. You can use an agent as is or customize it according to your needs. Upload data instantly using PDFs, CSVs PPTs URLs and more. Every new piece of information makes your agent smarter. No limits on storage or computing resources. Pinecone allows you to store unlimited vector data. You can control and monitor how your agent learns. Connect your AI agent to any data source or services and give it superpowers.

Naive is an innovative platform powered by AI that functions as an independent business runtime, allowing users to establish and manage an entire enterprise through a streamlined chat interface. To get started, users simply articulate their business concept, and the system promptly creates a virtual “headquarters,” deploys AI agents, and launches essential business operations such as initiating marketing campaigns, developing applications, and overseeing daily activities. These AI agents serve as self-sufficient employees, executing various tasks in areas like sales, marketing, customer support, and engineering, which enables companies to operate without conventional workforce structures. Users benefit from a centralized dashboard that provides real-time insights into activities, including marketing outreach, content creation, customer engagement, and product development, all efficiently managed by the agents working in concert. This seamless integration of AI into business processes not only enhances productivity but also offers a novel approach to entrepreneurship.

WRITER is the end-to-end platform for building, activating, and supervising AI agents across the enterprise. It empowers IT and business teams to collaboratively automate work, improve decision making, and scale impact — with full control and governance. Unlike other solutions built exclusively for engineers or business users, the WRITER platform gives anyone the tools to build powerful AI agents. Users can easily connect agents to customer data and systems, map business processes to guide agent behavior, and create and test prompts. They can get started quickly with a library of over 100 prebuilt agents, or build their own using intuitive no-code and pro-code tools. When code is needed, developers can create tools, APIs, and integrations with ease — then make them available to agents through a simple drag-and-drop interface.

Have you tried doing it yourself? Maybe you should think about hiring professionals instead. SalesMachines has a range of AI models and Conversation packages that are easy to use and smart, just like SmartPhone calling plans. We are always updating our AI models, just like Apple updates their Smartphones. Our aim is to offer the best AI models and conversation plans. Our AI is powered by OpenAI's GPT 4 Turbo Technology. It uses advanced systems to provide safer and more helpful responses. We constantly improve our machine learning models to enhance your projects. Our AI can have natural and adaptable conversations without complicated programming.

Beam AI stands out as a premier platform focused on agentic process automation, empowering organizations to implement self-learning AI agents that improve operational efficiency and lower expenses. Both Fortune 500 firms and emerging startups leverage Beam AI's agents, which offer task automation that rivals human accuracy and performance, functioning around the clock to reduce mistakes and boost productivity. The platform features an extensive array of pre-trained agents designed for various tasks such as customer service, data extraction, email sorting, appointment scheduling, and financial reporting. Furthermore, Beam AI equips users with tools to develop and tailor AI agents according to specific organizational requirements, ensuring smooth integration with current systems to enhance workflows and elevate business effectiveness. This flexibility and adaptability make Beam AI an invaluable resource for companies looking to innovate and stay competitive in their industries.

Metaflow serves as an intuitive agent creator and automation framework for growth operators and knowledge professionals who find themselves constrained by inflexible app connections and a plethora of prompt threads. This platform allows for uninhibited ideation while transforming insights into scalable AI workflows seamlessly. In contrast to conventional automation solutions that compartmentalize creativity from implementation, Metaflow integrates both discovery and execution into a cohesive environment. This integration facilitates exploration, development, and maturation of ideas into robust systems that generate significant impact. As a result, growth teams can liberate their cognitive resources, enabling them to engage in work that is profoundly fulfilling and impactful. Ultimately, Metaflow empowers users to harness their creativity while also streamlining their operational processes.

Calljmp is a developer-first AI runtime for building and running long-lived, stateful agent workflows in production. Unlike AI agent frameworks that focus mainly on authoring logic in code, Calljmp provides a managed runtime that handles execution concerns by default. This includes durable state persistence, pause and resume for human-in-the-loop workflows, safe retries with idempotency, and built-in observability across every step of an agent’s execution. Calljmp is designed for teams using TypeScript who want to ship production-grade AI systems without stitching together queues, databases, custom state machines, and monitoring infrastructure. Developers write agent workflows as code, while the runtime guarantees reliable execution over time, even across crashes, restarts, and long waits. Calljmp targets the gap between developer-first agent frameworks and heavy workflow engines, offering a practical path from prototype to production for real-world AI agents.

Cognigy.AI is an enterprise-grade conversational AI platform designed to automate customer interactions across various channels, including voice and chat. Leveraging advanced natural language understanding (NLU) and large language models (LLMs), it enables businesses to create intelligent AI agents capable of delivering personalized, human-like conversations. The platform offers robust integration capabilities, allowing seamless connectivity with existing contact center and CRM systems to enhance customer experience orchestration. With features like Agentic AI, Cognigy.AI introduces autonomous, goal-oriented agents that can think, adapt, and collaborate with both AI and human agents, navigating complex queries with flexibility and precision. This comprehensive solution empowers organizations to streamline customer service operations, improve engagement, and achieve higher efficiency in handling customer inquiries.

Lindy, an AI-powered assistant, is designed to streamline professional tasks. It integrates seamlessly with numerous applications including Gmail, Zoom and Twilio. It allows users to automate workflows, such as email management and customer support, scheduling and CRM data entry. Lindy's intuitive interface allows users to create AI agents within minutes, automating complex processes without coding expertise. Lindy also offers templates that can be customized to meet specific needs. For example, it is able to convert real-time interactions between clinicians and patients into accurate, comprehensive notes. Lindy allows professionals to focus on the most important aspects of their job, while ensuring that routine tasks are handled efficiently.

Latitude is a comprehensive platform for prompt engineering, helping product teams design, test, and optimize AI prompts for large language models (LLMs). It provides a suite of tools for importing, refining, and evaluating prompts using real-time data and synthetic datasets. The platform integrates with production environments to allow seamless deployment of new prompts, with advanced features like automatic prompt refinement and dataset management. Latitude’s ability to handle evaluations and provide observability makes it a key tool for organizations seeking to improve AI performance and operational efficiency.

Teams leverage Voiceflow to collaboratively design, test, and deploy conversational assistants more efficiently and at scale. With the platform, users can develop chat and voice interfaces for any digital product or conversational assistant seamlessly. It integrates various disciplines such as conversation design, product development, copywriting, and legal considerations into one cohesive process. Users can design, prototype, test, iterate, launch, and measure all within a single platform, eliminating functional silos and content disarray. Voiceflow empowers teams to operate within an interactive workspace that unifies all assistant-related data, including conversation flows, intents, utterances, response content, API calls, and additional elements. The platform's one-click prototyping feature helps avoid delays and extensive development efforts, allowing designers to create shareable, high-fidelity prototypes in just minutes to refine the user experience effectively. As the preferred choice for enhancing the speed and scalability of app delivery, Voiceflow also accelerates workflows with features such as drag-and-drop design, rapid prototyping, real-time feedback, and pre-built code, further streamlining the development process for teams. By harnessing these powerful tools, teams can significantly improve their collaborative efforts and optimize the overall quality of their conversational projects.

Akira.ai offers organizations a suite of Agentic AI, which comprises tailored AI agents aimed at refining and automating intricate workflows across multiple sectors. These agents work alongside human teams to improve productivity, facilitate prompt decision-making, and handle monotonous tasks, including data analysis, HR operations, and incident management. The platform is designed to seamlessly integrate with current systems such as CRMs and ERPs, enabling a smooth shift to AI-driven processes without disruption. By implementing Akira’s AI agents, businesses can enhance their operational efficiency, accelerate decision-making, and foster innovation in industries such as finance, IT, and manufacturing. Ultimately, this collaboration between AI and human teams paves the way for significant advancements in productivity and operational excellence.

Introducing a remarkably swift neural engine designed for the future of customer support and software development. This innovative solution harnesses the capabilities of LLMs and advanced analytics to transform your engagement with customers. It features automated routing, collaboration, and triaging mechanisms that address customer needs instantly. Enhance your support team’s efficiency and minimize incoming inquiries using cutting-edge AI technology. Additionally, it bridges development teams with customer experiences to ensure their impact is felt across the board. By effectively triaging customer feedback, you’ll receive actionable insights for product improvements. This collaborative environment fosters software development and customer support in unison. With features like live chat, ticket management, and engineering issue tracking all in one location, it streamlines communication and problem resolution. Tailor your platform to meet specific requirements through customizable objects, views, and additional options. Expand your capabilities using APIs and webhooks, enabling you to build, test, deploy, and release your own automated solutions. You’ll have the ability to map work, customer interactions, and product data seamlessly within a single system. This modern infrastructure supports cloud-native scalability, accommodating millions of users efficiently. It delivers consumer-grade, real-time experiences through text, audio, and video formats while maintaining enterprise-level security and compliance standards. As a result, businesses can confidently engage with their customers while innovating and adapting to their needs in a dynamic market.

Develop AI agents that can effortlessly identify your perfect customers on the internet, share captivating content, and generate more high-intent leads eager to purchase your offerings. Fyli boasts an extensive array of features designed to enhance your marketing strategies significantly. With our AI agents, you can streamline content distribution across various platforms, conserving both time and energy. Fyli meticulously assesses all content to discern what resonates with your audience, allowing you to focus on successful strategies. Utilizing advanced AI technology, Fyli generates authentic and compelling content tailored for your brand. Moreover, you have the flexibility to collaborate with Fyli in copilot mode, where you can review, approve, and schedule posts with ease. Fyli actively scours the web to uncover high-intent leads poised to make a purchase. By automating your marketing efforts with dedicated AI agents that operate around the clock, you can achieve unparalleled efficiency. Additionally, Fyli simplifies the process of monitoring your target demographic by tracking subreddits and keywords, identifying potential users who discuss the challenges your product addresses. This enables you to engage in meaningful conversations and seamlessly introduce your product when it fits naturally into the dialogue. In an ever-evolving digital landscape, Fyli empowers you to adapt and thrive, ensuring that your marketing remains relevant and effective.