Best Free AI Agent Builders of 2026

Retool is a modern AI-native application development platform designed to help teams build internal software quickly and efficiently. It enables users to create agents, workflows, dashboards, and full-stack apps using natural language prompts and visual tools. Retool connects directly to databases, APIs, vector stores, and AI models to ensure applications work seamlessly with existing systems. The platform allows teams to transform raw data into actionable tools such as dashboards, admin panels, and monitoring systems. With drag-and-drop UI building, code-level customization, and AI-assisted generation, Retool supports multiple development styles. Built-in workflows automate complex processes while maintaining auditability and security. Retool fits naturally into standard engineering stacks with support for CI/CD and version control. Enterprise-grade permissions and hosting options ensure sensitive data stays protected. Used by thousands of companies worldwide, Retool helps teams ship AI-powered software faster. It bridges the gap between idea and production with speed and control.

Postman serves as a collaborative platform for developing APIs, designed to simplify the entire process of API creation and enhance teamwork, enabling the rapid development of superior APIs. The platform's features facilitate each phase of API construction, making it easier to collaborate and accelerate the creation of high-quality APIs. Users can quickly and effortlessly send requests for REST, SOAP, and GraphQL directly within Postman, optimizing their workflow. Additionally, it allows for the automation of manual tests, seamlessly integrating them into your CI/CD pipeline to safeguard against potential issues when code changes are deployed to production. API behavior can be communicated effectively by simulating endpoints and their respective responses without the need for a backend server setup. You can also generate and publish visually appealing, machine-readable documentation, which helps in making your API more accessible for users. Regular performance and response time checks ensure you stay informed about your API's health, allowing for proactive management. Lastly, Postman fosters a shared environment for API creation and consumption, enabling real-time collaboration among team members. Postman’s AI Agent Builder revolutionizes the development of AI agents with its no-code platform, enabling users to build, test, and deploy powerful agents without coding expertise. It provides access to a vast library of over 100,000 APIs and a variety of LLMs, offering tools to compare their performance, cost, and response quality. The visual workflow builder simplifies creating multi-step agent interactions, and its testing tools ensure reliability before deployment.

Transform your organization into a fully automated enterprise™ with the UiPath Platform, a hallmark of digital transformation. Achieving a fully automated enterprise fosters business resilience, enhances speed and agility, and liberates employees from repetitive tasks through a comprehensive automation solution. Leverage the insights gathered from your business applications, such as ERP and CRM systems, to gain a profound understanding of intricate business operations. This knowledge empowers you to identify the most effective automation opportunities and measure their impact. As a cutting-edge Robotic Process Automation (RPA) and process mining platform, UiPath enables organizations to streamline their business processes, accelerating their journey towards becoming digital entities while gaining a competitive edge in the realm of AI. With its scalable, extensible, and sustainable architecture, UiPath allows users to create visual workflows without the need for scripting or coding. Additionally, the platform boasts robust auditing features, sophisticated analytical reporting, and personalized dashboards to enhance user experience and operational oversight. Embrace UiPath to not only improve efficiency but also to foster a culture of innovation within your organization.

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.

Break the invisible barriers between systems, apps, and data. Meet the agentic automation platform that makes quick work of your most complex processes. Make getting things done look easy—because it is. Orchestrate your most complex, critical processes across systems and teams, leaving app and data silos in the dust. Drive every process at maximum speed. Set up and apply AI + automation wherever your teams work with simple-to-use tools and expert support. Get peace of mind and automate with AI in any context, no matter how complex, with full security and governance controls. Get right-size support every step of the way. Start with do-it-yourself training, community expertise from 1M+ automation professionals, and a global partner ecosystem.

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.

Echobase is a platform that allows teams to create, analyze, and query data directly from files, without any upfront financial commitment -- no credit cards required. Echobase allows you to create AI Agents by leveraging AI models that are tailored to your business needs. These agents can perform a wide range of tasks, from answering simple questions to complex analysis, aggregating information, and completing tasks.

Cognee is an innovative open-source AI memory engine that converts unprocessed data into well-structured knowledge graphs, significantly improving the precision and contextual comprehension of AI agents. It accommodates a variety of data formats, such as unstructured text, media files, PDFs, and tables, while allowing seamless integration with multiple data sources. By utilizing modular ECL pipelines, Cognee efficiently processes and organizes data, facilitating the swift retrieval of pertinent information by AI agents. It is designed to work harmoniously with both vector and graph databases and is compatible with prominent LLM frameworks, including OpenAI, LlamaIndex, and LangChain. Notable features encompass customizable storage solutions, RDF-based ontologies for intelligent data structuring, and the capability to operate on-premises, which promotes data privacy and regulatory compliance. Additionally, Cognee boasts a distributed system that is scalable and adept at managing substantial data volumes, all while aiming to minimize AI hallucinations by providing a cohesive and interconnected data environment. This makes it a vital resource for developers looking to enhance the capabilities of their AI applications.

Riff is an enterprise AI platform that enables organizations to build, deploy, and scale intelligent agents for automating critical business operations. It focuses on handling “deep work” tasks such as reconciliation, exception handling, and decision-making across workflows like procurement, finance, and order-to-cash. The platform integrates seamlessly with major enterprise systems including SAP, Oracle, Salesforce, Microsoft Dynamics, and data platforms like Snowflake and Databricks. Riff allows businesses to go from concept to production in weeks, significantly reducing implementation time. It follows a structured approach where business teams define value, IT ensures governance, and domain experts build solutions. The platform generates full-stack AI workflows using standard technologies like Python and FastAPI. It ensures secure deployment with audit-ready code and compliance with standards such as SOC 2, ISO 27001, and GDPR. Riff also provides tools for monitoring, governance, and lifecycle management of AI agents. Organizations can measure ROI through real-time operational improvements and efficiency gains. Overall, Riff enables enterprises to operationalize AI quickly while maintaining control, security, and scalability.

Access a variety of AI models including Gemini, ChatGPT, and Claude all in one convenient platform, enabling you to quickly create your own AI agent for workflow automation in just a few minutes. Experience the benefits of AI-driven chat right in your pocket. With responses that mimic human conversation, our AI Assistant offers a chat interface that feels personal and engaging for both you and your clients. Training your AI agents is straightforward; simply upload documents like PDF and DocX files while integrating with Notion and Drive to enhance your agent's functionality. Customization options abound, allowing you to personalize with your brand name, colors, domain, and more. Additionally, the system integrates smoothly with popular social media platforms such as WhatsApp, Messenger, and Telegram. Rest assured, your API keys will be securely stored locally on your device, eliminating the need for any software installations. The prompt library has been expertly crafted to facilitate seamless interactions with our AI chatbot, readily available through user-friendly shortcuts. Our overarching goal is to streamline productivity, enabling you to focus more on your everyday tasks and customer interactions with greater ease and efficiency. With all these features combined, you can truly elevate your workflow and enhance customer satisfaction.

Semantic Kernel is an open-source development toolkit that facilitates the creation of AI agents and the integration of cutting-edge AI models into applications written in C#, Python, or Java. This efficient middleware accelerates the deployment of robust enterprise solutions. Companies like Microsoft and other Fortune 500 firms are taking advantage of Semantic Kernel's flexibility, modularity, and observability. With built-in security features such as telemetry support, hooks, and filters, developers can confidently provide responsible AI solutions at scale. The support for versions 1.0 and above across C#, Python, and Java ensures reliability and a commitment to maintaining non-breaking changes. Existing chat-based APIs can be effortlessly enhanced to include additional modalities such as voice and video, making the toolkit highly adaptable. Semantic Kernel is crafted to be future-proof, ensuring seamless integration with the latest AI models as technology evolves, thus maintaining its relevance in the rapidly changing landscape of artificial intelligence. This forward-thinking design empowers developers to innovate without fear of obsolescence.

Launch your first AI automation in just a minute. Inferable is designed to integrate smoothly with your current codebase and infrastructure, enabling the development of robust AI automation while maintaining both control and security. It works seamlessly with your existing code and connects with your current services through an opt-in process. With the ability to enforce determinism via source code, you can programmatically create and manage your automation solutions. You maintain ownership of the hardware within your own infrastructure. Inferable offers a delightful developer experience right from the start, making it easy to embark on your journey into AI automation. While we provide top-notch vertically integrated LLM orchestration, your expertise in your product and domain is invaluable. Central to Inferable is a distributed message queue that guarantees the scalability and reliability of your AI automations. This system ensures correct execution of your automations and handles any failures with ease. Furthermore, you can enhance your existing functions, REST APIs, and GraphQL endpoints by adding decorators that require human approval, thereby increasing the robustness of your automation processes. This integration not only elevates the functionality of your applications but also fosters a collaborative environment for refining your AI solutions.

Diaflow serves as a comprehensive enterprise solution designed to enhance the scalability of AI throughout your organization, empowering users to implement AI workflows that foster innovation. Transitioning from manual tasks to fully automated systems, it allows teams to craft effective applications and workflows using data from various sources. Streamlining your organization's manual operations becomes a breeze with user-friendly solutions that your team will appreciate. With Diaflow's intuitive interfaces and components, you can develop impressive AI-driven internal applications that you can take pride in. The platform also introduces a groundbreaking approach to document creation and editing through its AI-powered editing tool, leveraging your expertise to ensure continuous support and engagement around the clock. Moreover, it offers an integrated, AI-enabled spreadsheet solution that simplifies data management and transformation. Experience the ease with which Diaflow allows you to create outstanding products for your business, enabling rapid app and workflow development in mere minutes without any coding skills required. Ultimately, Diaflow is a game-changer for organizations looking to harness the power of AI effectively and efficiently.

SuperMarketer is an all-in-one marketing solution that allows for tailored customer interactions across various platforms, such as email, SMS, WhatsApp, mobile applications, Facebook, and Google. By utilizing AI-driven agents, it streamlines processes like generating social media visuals, executing email marketing campaigns, and consistently enhancing customer experiences. The platform creates dynamic customer journeys in real-time, utilizing advanced language models to surpass conventional automation templates and improve engagement strategies based on the latest customer behavior. It integrates multiple communication channels into one cohesive system, enabling the effective management of personalized and targeted customer communications informed by behavioral insights, demographic factors, and recent activities on the website. This innovative approach ensures that businesses can efficiently connect with their audience through highly relevant interactions.

Scout is an all-encompassing platform that allows users to efficiently build, launch and scale AI solutions. It has a workflow creator for creating AI automations based on models, web scraping and data storage, APIs, and custom logic. Users can automate content ingestion, such as from websites and documentation. They can also connect multiple large language model within a single workflow, to find optimal solutions. Copilots, which delivers AI-generated responses directly on websites, as well as Slack integration, for customer interaction, are some of the deployment options. APIs and SDKs can be used to build custom AI applications. Scout offers comprehensive testing and tuning tools, including evaluations and real-time monitoring. It also has built-in logging for workflow status, cost, and latency. The platform is trusted and used by teams who are building the future.

Broxi AI is an innovative no-code platform that empowers users to transform a basic text description into a fully operational AI agent in just minutes, utilizing intuitive visual drag-and-drop functionalities that eliminate the need for any technical expertise. Its unique Broxi Autopilot feature allows users to input natural language commands, like “create an agent to handle FAQs from our PDF handbook,” and seamlessly specify various input types such as PDFs, chat interfaces, or websites, along with diverse output options like emails, messages, or API interactions. With a single click, Broxi efficiently builds, tests within an interactive sandbox, and enables immediate deployment of your AI agent through various channels, including API, web widgets, Slack integration, or embedded applications. Additionally, it boasts compatibility with numerous tools and systems, provides real-time monitoring and centralized management capabilities, and upholds enterprise-level security standards, ensuring that even non-technical teams can easily automate tasks related to customer support, internal processes, sales interactions, content creation, and data extraction without the necessity of coding. This makes Broxi a powerful ally for organizations aiming to enhance their efficiency and service delivery through AI.

AgentKit offers an all-in-one collection of tools aimed at simplifying the creation, deployment, and enhancement of AI agents. Central to its offerings is Agent Builder, a visual platform that allows developers to easily create multi-agent workflows using drag-and-drop nodes, implement guardrails, preview executions, and manage different workflow versions. The Connector Registry plays a key role in unifying the oversight of data and tool integrations across various workspaces, ensuring effective governance and access management. Additionally, ChatKit facilitates the seamless integration of interactive chat interfaces, which can be tailored to fit specific branding and user experience requirements, into both web and app settings. To ensure high performance and dependability, AgentKit upgrades its evaluation framework with comprehensive datasets, trace grading, automated optimization of prompts, and compatibility with third-party models. Moreover, it offers reinforcement fine-tuning capabilities, further enhancing the potential of agents and their functionalities. This comprehensive suite makes it easier for developers to create sophisticated AI solutions efficiently.

Gemini Enterprise app is a comprehensive agentic AI platform designed to improve productivity and collaboration across organizations. It enables users to connect various workplace tools and data sources, providing a unified environment for searching, analyzing, and generating content. The platform supports multi-step automation through AI agents that can perform tasks across different applications without manual intervention. Users can leverage prebuilt Google agents or create custom agents using a no-code interface, making AI accessible to both technical and non-technical teams. Gemini Enterprise app also offers centralized control over data access, permissions, and workflows, ensuring secure and compliant operations. It is suitable for various departments, including marketing, sales, engineering, HR, and finance. By grounding AI outputs in enterprise data, it delivers more accurate and relevant results. Overall, it helps organizations operate more efficiently and make data-driven decisions.

TESS AI is a next-generation AI agent platform built for individuals, teams, and families who want unrestricted AI access. It offers more than 250 premium, verified AI models that can be used across creative, technical, and business workflows. Users can collaborate freely with unlimited account sharing and no surprise restrictions. The platform supports multi-model chat, allowing different AI systems to work together in a single conversation. Advanced features include image, video, music, voice, and presentation creation directly within chat. TESS AI prioritizes transparency by showing real-time costs and eliminating hidden limits. Private data is never used for AI training, ensuring full privacy protection. Smart memory tools help the AI retain important context and reduce repetition. Full API access allows seamless integration into custom applications. TESS AI redefines AI access with fairness, scalability, and enterprise-level capability.

MAIHEM develops AI agents designed to consistently evaluate your AI applications. Our platform allows you to fully automate the quality assurance of your AI, guaranteeing optimal performance and safety from the initial stages of development through to deployment. Say goodbye to tedious hours spent on manual testing and the uncertainty of randomly checking for vulnerabilities in your AI models. With MAIHEM, you can automate your AI quality assurance processes, ensuring a thorough analysis of thousands of edge cases. You can generate numerous realistic personas to engage with your conversational AI, allowing for a broad scope of interaction. Additionally, the platform automatically assesses entire dialogues using a customizable array of performance indicators and risk metrics. Utilize the simulation data generated to make precise enhancements to your conversational AI’s capabilities. Regardless of the type of conversational AI you are using, MAIHEM is equipped to help elevate its performance. Furthermore, our solution allows for easy integration of AI quality assurance into your development workflow with minimal coding required. The user-friendly web application provides intuitive dashboards, enabling comprehensive AI quality assurance with just a few clicks, streamlining the entire process. Ultimately, MAIHEM empowers developers to focus on innovation while maintaining the highest standards of AI quality assurance.

Emergence Orchestrator functions as an independent meta-agent that manages and synchronizes the interactions of AI agents within enterprise systems. This innovative tool allows various autonomous agents to collaborate effortlessly, handling complex workflows that involve both contemporary and legacy software systems. By utilizing the Orchestrator, businesses can efficiently oversee and coordinate numerous autonomous agents in real-time across a multitude of sectors, enabling applications such as supply chain optimization, quality assurance testing, research analysis, and travel logistics. It effectively manages essential tasks including workflow organization, compliance adherence, data protection, and system integration, allowing teams to concentrate on higher-level strategic objectives. Among its notable features are dynamic workflow orchestration, efficient task assignment, direct agent-to-agent communication, an extensive agent registry that maintains a catalog of agents, a specialized skills library that enhances task performance, and flexible compliance frameworks tailored to specific needs. Additionally, this tool significantly reduces operational overhead, enhancing overall productivity within enterprises.

Mistral AI has launched its Agents API, marking a noteworthy step forward in boosting AI functionality by overcoming the shortcomings of conventional language models when it comes to executing actions and retaining context. This innovative API merges Mistral's robust language models with essential features such as integrated connectors for executing code, conducting web searches, generating images, and utilizing Model Context Protocol (MCP) tools; it also offers persistent memory throughout conversations and agentic orchestration capabilities. By providing a tailored framework that simplifies the execution of agentic use cases, the Agents API enhances Mistral's Chat Completion API, serving as a vital infrastructure for enterprise-level agentic platforms. This allows developers to create AI agents that manage intricate tasks, sustain context, and synchronize multiple actions, ultimately making AI applications more functional and influential for businesses. As a result, enterprises can leverage this technology to improve efficiency and drive innovation in their operations.

Blink AI develops social media agents designed to communicate and express ideas in your unique voice. These agents monitor current trends, generate captivating content, and enhance your visibility on platforms like Twitter and LinkedIn, ensuring that you remain consistent, relevant, and prominent without the hassle of daily management. By leveraging these tools, you can focus on other important aspects of your life or business while maintaining a strong online presence.

Inya.ai stands out as a premier no-code platform that allows companies to effortlessly develop AI-driven conversational agents. Our GenAI agents are designed to enhance customer support, sales processes, and facilitate interactions in multiple languages, ensuring conversations that feel natural and intelligent. Suitable for both small businesses and large enterprises, Inya.ai streamlines voice automation across various sectors, significantly boosting operational efficiency while elevating the overall customer experience. This innovative approach not only simplifies communication but also fosters stronger relationships between businesses and their clients.