AI Product DB

AI tools for

Best AI agents

For AI agent, this page lists 13 source-reviewed tools. AGiXT, GPT Researcher and others are free and open source. Manus is listed under Research and task agents. Other groups are Build and automate, Customer support, Enterprise work, Business work and Creative desktop. All 13 tools were checked against official sources between 2026-10-05 and 2026-10-20.

Open source

  1. Self-hosted AI assistant and agent platform with a web interface, document learning and configurable extensions.

    FreeOpen sourceSelf-hostedOpen source

    Self-hosted web app

    Verified

    Official site (opens in a new tab)

Research and task agents

  1. AI agent workspace for carrying out research, computer-based tasks, and producing work artifacts.

    Free to startResearch and task agents

    Web, macOS, Windows, iOS, Android, API

    Verified

    Official site (opens in a new tab)

Build and automate

  1. AI browser automation platform for extracting data, handling documents and completing repeatable web workflows.

    Free to startOpen sourceSelf-hostedBuild and automate

    Web, API, Self-hosted deployment

    Verified

    Official site (opens in a new tab)

Customer support

Enterprise work

Business work

Creative desktop

Compare the 13 tools

Pricing, platforms, access notes and review dates for Best AI agents
ToolBest forPricingPlatformsAccess notesLast verified
AGiXTOpen sourceFreeSelf-hosted web appFree MIT-licensed software requiring a configured AGiXT backend and model provider or local model. Hosting, hardware and provider usage can cost extra. Product page
GPT ResearcherOpen sourceFreeSelf-hosted web app, Python, MCPSelf-hosting needs Python 3.12+, a model provider, and a search provider. Model and search usage may cost extra; reports need source review. Product page
Hermes AgentOpen sourceFreemacOS, Windows, Linux, CLI, DesktopFree MIT-licensed agent with macOS/Windows desktop clients and terminal installation. Connect a model provider; provider charges, optional Nous Portal credits… Product page
ManusResearch and task agentsFree to startWeb, macOS, Windows, iOS, Android, APIFree, Pro and Team plans have different credits, model access and concurrent/scheduled task allowances. A specified Pro tier advertises a seven-day trial. Conn… Product page
CrewAIBuild and automateFree to startWeb, PythonCrewAI combines an MIT-licensed Python framework with the separate managed AMP platform. Hosted Basic lists 50 monthly executions and two automations; Enterpri… Product page
SkyvernBuild and automateFree to startWeb, API, Self-hosted deploymentCloud plans include free entry with 5,000 listed credits and paid tiers with differing usage and concurrency limits; free-credit recurrence is not stated. The… Product page
DecagonCustomer supportNot publishedWebEnterprise demo and sign-in paths are available. Request pricing, trial eligibility, and the deployment and data-processing agreement from sales before connect… Product page
SierraCustomer supportPaidWebEnterprise inquiry and deployment through Sierra. Paid pricing is based on agreed outcomes; request a quote and confirm what counts as a billable outcome. Chec… Product page
North by CohereEnterprise workNot publishedWeb, Private deploymentNorth is an enterprise workspace with a public demo and sales contact. Deployment and pricing depend on organizational requirements; production self-service si… Product page
WRITER AgentEnterprise workPaidWebStarter offers a 14-day trial without a credit card, with limits on users, Playbooks, connectors, and credits. Ongoing use has paid per-seat plans; Enterprise… Product page
AI AgentBusiness workPaidWebPaid workspace plans use credits and concurrent-run limits. Current checkout has no trial; the sample workspace is a read-only tour. Product page
AutoGPTBusiness workPaidWebSpecialist AI team platform, retained as an unfeatured listing. Hosted Pro has an eligible-new-account trial requiring a card, followed by paid billing; workfl… Product page
VoyagerCreative desktopFree to startmacOS, Windows, LinuxLaunched October 8, 2026. The macOS download is free, needs no card, and includes 1,000 credits a month, with up to 500 usable in any 5 hours. Paid monthly sea… Product page

Common questions

Which AI agent tools are free?

AGiXT, GPT Researcher and Hermes Agent are marked free. CrewAI, Manus, Skyvern and Voyager are marked free to start.

Which AI agent tools run on Web?

AI Agent, AutoGPT, CrewAI, Decagon, Manus, North by Cohere, Sierra, Skyvern and WRITER Agent list Web.

How were these 13 tools chosen?

These 13 tools are active, source-reviewed listings in the public catalog. Raw models, general chat assistants, non-AI-native products, and listings described as legacy or unverified are left out. Read how listings are checked on the methodology page.

When was this list last checked?

This list was last checked on 2026-10-20.