Unified TypeScript library for streaming, structured outputs, and agent loops across AI providers
Full evaluationCategory guide · Reviewed Sep 2, 2026
Best AI Agent & Chatbot Builders
ranked for real work.
Pick an agent builder by how it grounds answers in your data, what actions it can safely take, deployment channels, observability and evaluation tooling, and whether you can leave with your data and prompts.
Ranked shortlist
37 agent builders tools reviewed
Platforms for building custom assistants and agents on your own data, tools, and channels without owning the model stack.
Prototyping environment and developer API platform for Google's Gemini models
Full evaluation
A source-available workflow automation platform with native AI agent nodes, self-hostable or cloud.
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An AI support agent inside Intercom that resolves customer conversations from your help content and hands off to people.
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End-to-end conversational and autonomous AI agent platform for Microsoft 365 and external channels
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Developer console and API management platform for Claude models and managed agent infrastructure
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Realtime AI speech and intelligence engine powering interactive voices, non-player characters, and conversational agents.
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The search, extract, and research API purpose-built for AI agents
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Low-code visual builder for agentic and RAG applications with Python extensibility
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A visual platform for designing, testing, and deploying AI agents for support and conversational products.
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An open-source LLM app platform with visual workflows, RAG, and agent tooling, available self-hosted or as a cloud service.
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A visual automation platform with branching scenarios, AI modules, and agents for complex workflows.
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Open-source agent frameworks and the LangSmith platform for building, testing, and deploying LLM applications.
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Open-source agent runtime and low-level orchestration framework for reliable AI workflows
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Unified data and AI platform for analytics, machine learning, and AI agent development
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Autonomous AI agents for sales, service, and operations across the Salesforce CRM platform
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Developer platform for building applications with OpenAI APIs and documentation
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Python and TypeScript library to run Claude Code's agent loop, tools, and context in your own applications.
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Data framework and agentic document processing platform for context-grounded AI applications.
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An agent-building platform with a visual studio, hosted runtime, and an open-source lineage.
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Build, govern, and orchestrate enterprise AI agents grounded in company data and Google Cloud infrastructure.
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An open-source framework for building multi-agent AI systems and applications.
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Multiplayer AI platform connecting team knowledge, frontier models, and custom agents.
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Enterprise AI platform for agentic work, brand consistency, and automated workflows
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Open-source TypeScript framework for building, observing, and running AI agents and workflows
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Enterprise agent build and runtime platform for multi-agent workflows
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Low-code platform for building, evaluating, and deploying autonomous AI agent workforces
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A no-code platform for accurate, citation-backed AI agents built on your own content.
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Build a customer-facing AI agent from your website and documents in minutes and embed it anywhere.
Full evaluation73.1score
Lightweight Python framework for multi-agent orchestration, sandboxes, and realtime voice
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Build, share, optimize, and control AI agents for workplace automation
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Build and orchestrate multi-step generative AI agents integrated with enterprise data and APIs on AWS
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Conversational AI platform for building autonomous customer service agents across chat, voice, and messaging channels.
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Agentic AI teammate that automates recurring workflows across Slack, email, and business tools.
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Autonomous digital workers for inbound and outbound sales pipeline generation
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LLM frontend chat UI for AI models and custom agents with bring-your-own-key privacy.
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Autonomous agent for building full-stack web applications, browser automation, and deep research.
Full evaluationNarrower workflows
Specialisms within agent builders
Agent Platforms & Frameworks
Design agents with tools, memory, and workflows; self-hostable or managed.
14 ranked tools →No-Code Chatbot Builders
Build grounded chatbots from your website and documents and embed them anywhere.
5 ranked tools →WhatsApp, Slack & Messaging Bots
Deploy assistants to WhatsApp, Messenger, Telegram, and Slack with grounded answers.
1 ranked tool →Adjacent workflows
Related categories
AI Customer Support
AI agents, help-desk copilots, and chat automation that resolve customer questions and hand off cleanly to people.
See ranked tools →AI Automation & Workflows
No-code and agentic automation for connecting apps, data, decisions, and repeatable work.
See ranked tools →AI Knowledge Management
Workspace search, documentation assistants, and company memory that answer questions from your own documents and apps.
See ranked tools →Frequently asked
Choosing ai agent & chatbot builders
Should I build my own agent or buy a builder?+
Builders get you to a working assistant in days with hosting, retrieval, and analytics included. Build custom when you need unusual tools, strict data control, or costs at very high volume.
How do I stop an agent from making things up?+
Restrict it to your sources, require citations, add fallback answers, test with adversarial questions, and review logs regularly. No builder removes the need for evaluation.