Why this exists
A record of the agent era, kept honestly.
The AI agent ecosystem moves fast — new coding agents, voice agents, MCP servers, browser agents, and frameworks ship every week, scattered across GitHub, launch threads, and vendor sites. Agent Search Engine pulls them into one structured index so you can search, compare, and decide in minutes instead of digging through a dozen tabs. It is an independent index, not owned by any agent vendor — which is the whole point.
How the index is built
Open-source projects are described from their own public GitHub data — language, license, last release activity, and README — and ranked by maintained adoption: GitHub stars combined with recent commit activity, so a popular-but-abandoned repo doesn't outrank one that's genuinely used and still shipping. We don't invent composite "scores" or ratings; the signals are real and shown as they are.
Commercial products are curated and written by hand, and listed separately from the open-source index — alphabetically, never by star count, because GitHub stars don't measure commercial adoption. Every listing is assigned one primary type (agent, framework, platform, infrastructure, SDK, MCP server, or MCP client) so a category stays what it says it is. Read the full methodology for the exact rules.
Not everything with stars belongs here. Repositories that look star-farmed — an implausible, sustained spike of stars on a young repo — are delisted, not quietly down-ranked, after a hand review. Tutorials, awesome-lists, courses, and off-topic projects are excluded too. A directory ranked by fake popularity is worthless to the people using it.
The wall between editorial and paid
Rankings are never sold. Paid placements exist — they're always labeled Sponsored, they never carry a rank number, and they never reorder the organic index. Some outbound links are affiliate links, marked nofollow sponsored, which may earn us a commission at no cost to you. That, plus sponsorship, is what keeps the index free to use and free to be listed in. We'd rather protect that wall too hard than not enough — it's the only reason a ranking here is worth trusting.
Ways in
Start from the category atlas, jump to the full A–Z index, or narrow down with best-of lists and alternatives pages when you're weighing one tool against another.
Built something? Submit your agent — listings are free and reviewed by hand. Run a product already listed and want to correct a detail or claim the page? Get in touch. Want distribution to people actively choosing an agent? See advertising — always labeled, never ranked.