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Best Build AI Agents Tools

The best tools to build ai agents — reviewed and ranked.

Each build AI agents tool below is hand-reviewed, with an honest take on who it's for and where it falls short.

436 tools· Updated Oct 20265 sub-tasks

Browse Build AI Agents sub-tasks

436 tools · 5 sub-tasks

All build AI agents tools

436 tools · filter by pricing, then sort.

Pricing
Jules
AI Development
7.5 out of 10

Google's autonomous AI coding agent that fixes bugs, writes tests, and ships PRs directly inside your GitHub workflow — asynchronously.

Best forDevelopers and engineering teams looking to automate repetitive coding tasks like bug fixes, tests, and documentation without leaving GitHub
Pricing: FreemiumReviewed
Kaedim
Developer & Technical
7.1 out of 10

AI-powered 3D content creation tool for generating assets for games, films, and virtual environments.

Best for3D Artists
Pricing: PaidReviewed
Keelvar
Developer & Technical
6.9 out of 10

Automates sourcing, bidding, and procurement processes with AI-driven negotiation tools.

Best forProcurement managers
Pricing: Free TrialReviewed
Kestra
AI Development
7.7 out of 10

Open-source orchestration platform for building, scheduling, and monitoring workflows.

Best forDevelopers
Pricing: PaidReviewed
Kiro
AI Development
6.9 out of 10

AWS's agentic IDE that turns natural-language prompts into structured specs, then into production-ready code, tests, and docs.

Best forDevelopers and engineering teams who want an AI that owns the full journey from requirements through tested, documented code rather than just line-by-line suggestions
Pricing: FreemiumReviewed
Kissflow
Developer & Technical
6.4 out of 10

Kissflow is an enterprise low-code and no-code platform for building workflows, forms, portals and AI-generated apps, sold on quote-based annual plans.

Best forEnterprise process apps
Pricing: PaidReviewed
kore.ai
Community & Engagement Tools
7.2 out of 10

Delivers enterprise AI platform for customer experience and virtual assistants.

Best forEnterprise users
Pricing: Free TrialReviewed
Kserve
AI Development
7.5 out of 10

Kubernetes-based platform for deploying and serving AI/ML models at scale.

Best forDevelopers
Pricing: PaidReviewed
Kudosi
Developer & Technical
6.9 out of 10

AI platform for professional feedback, employee engagement, and decision support.

Best forDevelopers
Pricing: FreemiumReviewed
Kupid
Community & Engagement Tools
5.9 out of 10

Offers AI matchmaking and social networking tools for personal connections.

Best forDating app users
Pricing: Free TrialReviewed
La Growth Machine
AI SDR Tools
7.5 out of 10

Multichannel B2B sales automation platform that sequences LinkedIn, email, Twitter/X, and calls with AI personalization in one visual workflow.

Best forB2B sales teams, SDRs, and lead generation agencies running multichannel cold outreach at scale
Pricing: Free TrialReviewed
LangChain
AI Development
7.7 out of 10

Framework for developing applications powered by language models, enhancing AI integration and automation.

Best forLangChain is designed for developers, data engineers, and AI professionals who want to unlock the potential of large language models in their applications
Pricing: FreemiumReviewed
7.8 out of 10

A programming framework for building intelligent agents and executing complex AI tasks.

Best forAI Engineers
Pricing: PaidReviewed
Langfuse
AI Development
8.4 out of 10

Platform for monitoring, analyzing, and debugging AI-driven workflows and applications.

Best forDevelopers
Pricing: FreemiumReviewed
Langgraph
AI Agent Builders
8.0 out of 10

Visual workflow and orchestration platform for building AI applications and pipelines.

Best forDevelopers
Pricing: FreemiumReviewed
Langsmith
AI Development
7.7 out of 10

Enterprise platform for managing AI deployments and automating business processes.

Best forDevelopers
Pricing: PaidReviewed
Letta
AI Agent Builders
7.0 out of 10

Open-source platform for building stateful AI agents with persistent memory that learn, adapt, and self-improve over time.

Best forDevelopers building production AI agents that need long-term memory, continuous learning, and stateful behavior across sessions
Pricing: FreemiumReviewed
Lindy
AI Agent Builders
7.9 out of 10

No-code AI agent builder that lets teams deploy production-ready automations for email, support, outreach, and scheduling in hours.

Best forEntrepreneurs and teams wanting to automate email, scheduling, support, and outreach workflows without writing any code
Pricing: Free TrialReviewed
Litellm
AI Development
8.1 out of 10

Lightweight platform for serving and scaling AI models efficiently for developers.

Best forDevelopers
Pricing: PaidReviewed
llama.cpp
AI Development
8.0 out of 10

Lightweight C++ implementation of LLaMA for running LLMs locally and efficiently.

Best forDevelopers
Pricing: PaidReviewed
Llamaindex Cloud
AI Development
7.3 out of 10

Cloud-native platform for deploying AI/ML models with low-latency access.

Best forDevelopers
Pricing: FreeReviewed
Llamaparse
AI Development
7.7 out of 10

Declarative framework for querying, controlling, and automating AI model behavior.

Best forDevelopers
Pricing: PaidReviewed
Lm
AI Development
7.0 out of 10

Autonomous AI platform for generating content, executing tasks, and building workflows.

Best forDevelopers
Pricing: PaidReviewed
Lmdeploy
AI Development
7.5 out of 10

Collaborative AI platform for managing AI projects and automating enterprise tasks.

Best forDevelopers
Pricing: FreemiumReviewed
Lmql
AI Development
6.9 out of 10

Cloud-based vector database for storing and retrieving embeddings for AI applications.

Best forDevelopers
Pricing: PaidReviewed
Longshot AI Hub
AI Content Writing
6.8 out of 10

Cloud platform for running machine learning models and AI pipelines efficiently.

Best forAI Teams
Pricing: FreemiumReviewed
LongShot.ai
AI Content Writing
6.0 out of 10

LongShot.ai is an AI writing assistant designed to help content creators generate high-quality, long-form content quickly and efficiently.

Best forcontent marketers
Pricing: FreemiumReviewed
Lusha
AI SDR Tools
7.7 out of 10

B2B sales intelligence platform giving revenue teams verified contact data, buying signals, and AI-ready prospecting at scale.

Best forSDRs, account executives, and marketing teams that depend on high-volume, accurate B2B contact data to fuel outbound outreach and account-based campaigns
Pricing: FreemiumReviewed
mabl
AI Development
7.9 out of 10

AI-native test automation platform that builds, runs, and self-heals test coverage across web, mobile, API, and AI applications.

Best forQA engineers and development teams that need scalable, low-maintenance automated testing across web, mobile, and APIs
Pricing: Free TrialReviewed
Magician Figma
UI / Wireframing
6.8 out of 10

A deployment platform for managing AI models and ML workflows at scale.

Best forDesigners
Pricing: FreemiumReviewed
Mantine UI
Developer & Technical
8.7 out of 10

Free, open-source React library with 120+ components and 70+ hooks, plus a free set of 123 ready-made UI blocks for web apps.

Best forFree React component library
Pricing: FreeReviewed
Manus
AI Agent Builders
7.0 out of 10

Autonomous AI agent that independently plans, browses the web, writes code, and delivers finished work — all from a single prompt.

Best forEntrepreneurs and teams who want an AI agent to independently complete complex, multi-step tasks without constant supervision
Pricing: FreemiumReviewed
maplesim
Developer & Technical
7.0 out of 10

Advanced system simulation software for engineering design, modeling, and performance analysis.

Best forEngineers
Pricing: Free TrialReviewed
Mastra
AI Agent Builders
7.5 out of 10

Open-source TypeScript framework for building production-ready AI agents and workflows with memory, observability, and 90+ LLM providers.

Best forTypeScript and JavaScript developers building production AI agents, multi-step LLM workflows, or internal automation tools
Pricing: FreemiumReviewed
Metagpt
AI Agent Builders
7.1 out of 10

Programming framework for building, querying, and controlling language models via code.

Best forAI Developers
Pricing: PaidReviewed
Microsoft Azure
Hosting Providers
7.5 out of 10

Microsoft Azure is a comprehensive cloud computing platform offering a vast array of services for building, deploying, and managing applications and services through Microsoft-managed data centers.

Best forMicrosoft Azure is ideal for enterprises, startups, developers, IT professionals, and businesses of all sizes looking for scalable cloud infrastructure, powerful development platforms, data analytics capabilities, and AI services
Pricing: PaidReviewed

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