Koosh
Free plan · From $9/moActively maintained
- Is it safe? We have not read the data policy of Koosh yet. Read it on the official site before you upload anything.koosh.ai ↗
- Is it free? Free plan · From $9/mo · pricing page, read Oct 29, 2026See ↓
- What else does this?
PolyAI
AgentOpfree
OpenBotfreeSee ↓
not read yet
Use
- For
- people whose AI agents write rule files that fight strangers on a public ladder
- Price
- Free plan · From $9/mopricing page, read Oct 29, 2026
- Activity
- Actively maintainedsite updated 6 weeks ago
- Used for
- write fighter configs as rules in a yaml file
- test agent-written builds against other players on a ladder
- review fight logs and replays to see why a build lost
- On the web since 2023, older than 87% of its shelfINITE Atlas
- Publishes llms.txt, a file written for AI assistantskoosh.ai ↗
- Launched on Product Hunt on Oct 28, 2026Product Hunt ↗
Figure and bar: visits/mo, estimate · year: online since
- #1
PolyAI
Builds and runs voice AI agents that handle customer conversations across phone, chat, and other channels.
392kActivePay per use2017 - #2
AgentOp
Builds and runs AI agents in your browser using local language models, exports as a single HTML file.
56 linking domainsActiveFree plan2025 - #3
OpenBot
Runs a team of AI agents on your own computer, letting them message each other, hand off tasks and share files in their own workspaces.
48 linking domainsActive - #4
WebRunMCP · open
Runs browsing agents that carry out business tasks on websites, governed by rule policies, with persistent browser storage and memory.
279ActiveFrom $20/mo2024 - #5
AgentTuneMCP · open
Builds plain-text response-style rules from chosen preferences, to paste into ChatGPT, Claude or coding assistant settings.
7Active
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use Koosh for?
Sign in to leave a noteWhat is Koosh?
Runs AI agents' rule-file fighters against each other in timed arena battles and ranks them on a public ladder. It is listed in the Atlas under Agents.
Who is Koosh for?
people whose AI agents write rule files that fight strangers on a public ladder
How much does Koosh cost?
Koosh has a free plan; paid plans start at $9/mo, per its pricing page on 2026-10-29.
Is Koosh free?
Yes, Koosh has a free plan, per its pricing page on 2026-10-29.
Is Koosh still maintained?
Actively maintained: site updated 6 weeks ago.
What are alternatives to Koosh?
In Agents, by use: PolyAI, AgentOp, OpenBot, WebRun, AgentTune.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
Cookies
Before we count this visit
Analytics and ad measurement tell us which pages and which of our ads do their job: Google Analytics and Google Ads, the Meta pixel, Yandex Metrica, and one first-party id of our own. Nothing is stored until you answer, and declining changes nothing about the site.