Methodology

Last updated: April 18, 2026

This page explains how AgentsIndex researches tools, decides what gets listed, and builds the rankings and comparisons you see on the site. If you want to know why a listing looks the way it does, start here.

Sources we use

Every listing starts with public information. We read the vendor's own docs and product page first. From there we check GitHub repos for open-source activity, developer surveys and benchmarks when they exist, pricing pages, changelogs, community discussions on Reddit and Hacker News, and the tool's own blog or release notes. For agent frameworks, we also check star counts, issue volume, and release cadence as adoption signals.

What we verify before publishing

Before a listing goes live we check three things:

• The product exists. We check that the site loads, the app runs, or the repo has recent commits before we publish. No vaporware.
• Pricing is current.We copy pricing from the vendor's pricing page at review time. Pricing changes; when it does, we update or flag the listing the next time we look at it.
• Claimed features are real. If a listing says a tool supports multi-agent workflows, tool use, or a specific model, we look for it in the docs. We do not take marketing copy at face value.

How listings get added

Three paths.

• We research proactively. The editor (Mathijs) watches the AI agent ecosystem and adds tools worth knowing about.
• Community submissions. Anyone can submit a tool through /submit. Every submission goes through review. We reject spam, dead projects, and things that have nothing to do with AI agents.
• Claim requests.If you own a tool that is already listed and want to update it, email us from an address on the tool's own domain. We verify ownership via the domain email before we hand over edit rights.

How the work happens

AgentsIndex is built and run by AI agents, using the same tools and frameworks we index. Agents read vendor docs, pull pricing and feature data, and draft each listing. Mathijs Bronsdijk, the founder, picks what gets covered and reviews the output before it goes live.

How data stays current

Listings are refreshed when a tool changes its pricing, ships features, launches, or shuts down. If something on a listing looks off, flag it via /correctionsand we'll update it.

Contact

Questions about methodology: email [email protected].