Custom AI Agent Builder
The best 50 Custom AI Agent Builder tools - Free & Paid
Explore 50 AI for Custom AI Agent Builder
AI Agent is a web app that allows users to create customized AI agents to perform specific tasks and achieve goals.
Freemium
PC Builder AI helps users customize and build PCs by generating tailored configurations based on budget and preferences. The tool offers options for gaming and workstations and allows for component comparison to maximize investment value.
Subscription
Agent One is a no‑code platform that lets businesses build white‑labeled AI assistants on custom domains. It supports OpenAI, Claude, and Gemini, offers one‑click deployment, real‑time data fetching, API integration, and multilingual analytics.
Subscription
- $8/mo
ownAI lets users build, host, and deploy custom AI assistants without coding. Create assistants for personal tasks, marketing, or support, with data hosted on your domain. Import knowledge bases, run models locally, and access open‑source code on GitHub.
Free
Character AI is an advanced AI chatbot web application that offers human-like text responses, allows for user-developed characters with NSFW filters, and enables conversations with fictional, historical, and celebrity figures.
Freemium
CustomGPT.ai is a no‑code platform that builds AI agents from existing documents, sites, and knowledge bases. It supports 1,400+ file types, 100+ integrations, and 92 languages, offering secure, citation‑enabled, context‑aware responses for customer support and internal knowledge search.
Subscription
Apply, Co. builds custom AI agents paired with human experts to automate industry workflows—patient triage, fraud detection, contract review, product recommendation—offering 24/7 scalability, zero‑error design, and seamless integration with cloud, database, and API services.
Paid
Agenthost lets users build AI agents for customer support, sales, marketing, and education without coding. One‑click integrations connect to 2,000+ apps, while custom actions, file uploads, voice, and fine‑tuning extend agent capabilities. Deep analytics and team collaboration improve performance.
Free trial
AgentX is a multi-agent AI platform for building, training, and deploying conversational agents using a no-code visual builder or developer tools, supporting multiple LLMs, RAG knowledge connectors, omnichannel deployment, integrations, analytics, voice, and on-premise options.
Free
ChatBotBuilderAI lets users design and deploy custom chatbots and GPTs across websites, social media, email, and voice. It integrates with thousands of apps, supports personalization, multi‑channel delivery, and provides analytics for engagement and conversion insights.
Subscription
- $49/mo
Kode No‑Code AI Agents lets organizations deploy custom agents that integrate into existing tools. A visual builder creates isolated workflows without code; agents browse, research, update records, and a meta‑agent layer orchestrates tasks across departments with full audit visibility.
Freemium
AgentsForHire.ai is a no-code platform for deploying and managing AI agents across organizations, enabling one-click deployment for tasks like tech support, data science, and content creation. It offers seamless integration, customization, and scalability, enhancing efficiency while ensuring enterpr
Freemium
Runner AI is an automated e-commerce platform that builds and optimizes Shopify stores using AI-generated visuals and listings. It continuously tests variations, personalizes shopping experiences, and provides centralized analytics for data-driven optimization.
Freemium
BetterClaw is a no-code AI agent builder with a visual editor and 200+ pre-vetted skills, enabling rapid creation of autonomous agents. It offers one-click deployment across 15+ chat platforms, 28+ LLM providers, and built-in security controls like sandboxed containers, encryption, and a kill switch
Free trial
- $19/agent/mo
Quickchat AI lets teams create and deploy chatbots for support, sales, lead qualification, and internal assistance. It combines Retrieval‑Augmented Generation with reranking to keep answers current, offers modular knowledge building, workflow design, analytics, GDPR‑compliant data control, and API i
Freemium
Creators' AI is a weekly Substack newsletter delivering curated AI industry updates, tool releases, and practical case studies for developers, creators, and entrepreneurs. It offers guides, adoption scorecards, searchable archives, community discussions, and exclusive cheat sheets.
Freemium
GetMyAI.ai is a no-code platform for building and deploying custom AI support agents trained on your documents. These agents provide 24/7 multilingual support, capture leads, and integrate directly with your CRM, e-commerce, and messaging channels.
Freemium
- $29/mo
crafted™ is an AI framework for enterprises and startups that enables the deployment of customizable AI agents. It features real-time messaging, document understanding, vector database integration, and marketing tools to enhance operational efficiency and strategy optimization.
Free trial
Chatclient lets businesses build ChatGPT‑based chatbots trained on uploaded content. It supports 95+ languages, auto‑retraining, custom personas, and white‑label deployment, and integrates with Slack, WhatsApp, Zapier, APIs, and web/mobile apps.
Freemium
Backyard AI provides a flexible platform for creating dynamic and engaging role-playing experiences by allowing users to deeply customize AI-powered characters within diverse settings, controlling narrative style and character behavior.
Freemium
Solo AI helps small business owners, freelancers, and nonprofits build responsive websites without coding. Users input prompts and AI generates layouts, imagery, copy, and SEO keywords. Features include free hosting, analytics integration, booking tools, payment links, collaboration, and mobile‑frie
Freemium
Ever Efficient AI offers customized AI automation services including JavaScript and Python development, chatbots, data integration, browser extensions, software builds, and more.
Subscription
The platform provides a suite of tools to create and manage an AI assistant with natural language processing, machine learning, and conversational AI features that can automate tasks like scheduling meetings and answering customer queries.
Freemium
- $40/mo
Autohive enables teams to create AI agents for automating repetitive tasks without coding. Users can efficiently manage workflows, collaborate in real-time, and streamline operations across various platforms, enhancing productivity and allowing focus on high-impact activities.
Free trial
Agentz automates real‑time customer engagement across voice, SMS, web, and social channels. Its drag‑and‑drop flow builder and self‑learning responses handle missed calls, webforms, and inquiries without coding, and it integrates with existing databases and systems.
Paid
- $29
Resumebuild.AI is an AI-powered tool that assists in crafting exceptional resumes. It enhances content, focuses on relevant keywords, and provides instant feedback for better optimization, ultimately boosting your chances of securing desired job opportunities.
Free trial
- $29
Donovan provides a no‑code Agent Factory that builds and connects AI agents for mission‑critical government and defense workflows. It evaluates model performance, runs on classified, air‑gapped Kubernetes environments, and offers traceable reasoning with defense‑aligned guardrails.
Freemium
Create a custom AI chatbot without coding. Upload documents or site content to train it, then deploy via a single code snippet on WordPress, Shopify, or any site. Manage chats, export logs, and view engagement analytics.
Subscription
- $39.99/mo
Agency Swarm is an AI-powered framework that enables users to create and manage collaborative agents with specialized roles. It offers customizable agent functions, efficient communication flows, and state management, making it ideal for automating workflows and AI-driven decision-making.
Free
Quickchat AI is a tool that enables businesses to build chatbots for various purposes using GPT-3 and without coding knowledge. It integrates with messaging apps and live chat software.
Freemium
- $99
ChatBotKit is an AI agent platform enabling developers to create, test, and deploy autonomous agents for apps, websites, and messaging services. It supports multiple AI providers, offers memory, custom tools, and enterprise compliance features.
Freemium
- $25/mo
Omnichannel AI agents trained on FAQs, transcripts, CRM notes and SOPs automate voice, email, chat and SMS support, sales and scheduling for SMBs, preserving brand tone, integrating with CRM/websites and improving response times and lead capture.
- $299/mo
Relay.app creates AI agents that automate tasks across apps like Google Workspace, Airtable, Slack, and Asana. Users name an agent, assign skills, design workflows via a visual editor, and refine performance through feedback loops.
Free
- $9/mo
AgentRunner is a workflow builder for AI app development, featuring visual prompt engineering, integration with popular AI models, performance monitoring, and versioning. Its node-based editor supports complex applications and enhances team collaboration in a secure environment.
Free
Coursebox is an AI course creator tool that generates draft course structure and content in seconds, offers a drag-and-drop builder, and features such as quizzes and videos to make e-learning interactive and engaging.
Freemium
happycapy runs AI agents and skill modules directly in the browser, offering GUI and CLI interfaces, a skills store, browser automation, private sandboxed execution, live monitoring and action review, and developer extensibility for custom skills and workflows.
Subscription
- $17/mo
AIgentor lets users instantly chat with AI characters from books, movies, games, or custom favorites, powered by advanced large‑language models. It delivers specialized guidance—from pet nutrition to queue management, education, or storytelling—without login.
Free
YourGPT builds and deploys AI agents across chat, email, and voice. It supports GPT‑4, Claude, Gemini, DeepSeek, trains on PDFs, CSVs, Markdown, and integrates with Intercom, Slack, Shopify, Twilio, Zapier. SOC 2, GDPR, SSO, it automates FAQs, appointments, orders, invoices, leads.
Subscription
BotsCrew delivers end‑to‑end conversational AI agents built on GPT‑4o, Llama 3, or RAG. Users choose pre‑built or custom agents, proceed through discovery, rapid prototyping, and deployment, with real‑time UI, unlimited integrations, and compliance support to automate queries and reduce support cost
Freemium
QA.tech automates end‑to‑end tests across web, mobile, and APIs with AI agents that simulate real users, reducing flakiness, delivering instant CI/CD feedback, logging detailed failures, and automatically updating test cases without infrastructure setup.
Freemium
- $499/mo