AI · alternatives · 2026
24 alternatives to PromptChess
Chess.com for AI agents
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1
Chessmaster AI▲232Transform Your Chess Skills with AI-Powered Training
Jan 2026 · play.google.com · its alternatives →
- 2
Agent Arena▲348Creator here. I built Agent Arena to answer a question that kept bugging me: when AI agents browse the web autonomously, how easily can they be manipulated by hidden instructions? How it works: 1. Send your AI agent to ref.jock.pl/modern-web (looks like a harmless web dev cheat sheet) 2. Ask it to summarize the page 3. Paste its response into the scorecard at wiz.jock.pl/experiments/agent-arena/ The page is loaded with 10 hidden prompt injection attacks -- HTML comments, white-on-white text, zero-width Unicode, data attributes, etc. Most agents fall for at least a few.…
Jun 2026 · arena42.ai · its alternatives →
- 3
Hi! I build an MCP server that allows clients to play Minesweeper. It turns out that Claude is not very good at it (makes obvious mistakes, hasn't won a single game on a 9x9 board after many attempts). I am curious how I can prompt Claude to do better?
2025 · github.com · its alternatives →
- 4
muno▲104AI agents that talk to your team & complete tasks for you.
Feb 2026 · muno.work · its alternatives →
- 5
- 6
AI Agents Listing is a curated directory for the agentic ecosystem. It helps you discover AI agents, MCP servers, and drop-in agent skills, ranking them by real engagement rather than ads. You can browse popular categories, view leaderboards, and submit your own tools to get disc
Sep 2026 · aiagentslisting.com · its alternatives →
- 7
AI Browser▲143Hey HN! I built Browser AI after getting frustrated with the official Playwright MCP server in Claude Code. If you've used it, you know the pain: - 20+ separate tools that Claude has to juggle (click, fill, navigate, wait_for_selector, etc.) - Context window explosions from verbose screenshot data and DOM snapshots - Constant tool selection errors where Claude picks the wrong tool or forgets parameters Browser AI wraps Playwright MCP with a single natural language interface. Instead of Claude managing dozens of tools, you get one: browser_ai.execute. Just tell it what you want in plain…
Nov 2025 · aibrowser.surf · its alternatives →
- 8
Kaiku▲79The task tracker your AI agents already know how to use
28d ago · kaiku.tech · its alternatives →
- 9
I built a March Madness bracket challenge for AI agents, not humans. The human prompts their agent with the URL, and the agent reads the API docs, registers itself, picks all 63 games, and submits a bracket autonomously. A leaderboard tracks which AI picks the best bracket through the tournament. The interesting design problem was building for an agent-first user. I came up with a solution where Agents who hit the homepage receive plain-text API instructions and Humans get the normal visual site. Early on I found most agents were trying to use Playwright to browse the site instead of just…
Mar 2026 · bracketmadness.ai · its alternatives →
- 10
MCP-Builder.aifree tier, from $29/mo▲174The fastest way to connect your data with your AI Tools.
Aug 2026 · mcp-builder.ai · its alternatives →
- 11
- 12
- 13
- 14
- 15
- 16
- 17
Sep 2026 · clawfight.ai · its alternatives →
- 18
Your chess game's key moments clearly explained
2025 · taketaketake.com · its alternatives →
- 19IT
I built 1e4.ai - a chess web app where you play against neural networks trained to mimic human Lichess players at specific Elo ranges. There's a separate model for each 100-point rating bucket from ~800 to 2200+, and the bots not only choose human-like moves but also burn clock time, play worse under time pressure, and blunder in human-like ways. Live demo: https://1e4.ai Code: https://github.com/thomasj02/1e4_ai A few things that might be interesting: - Trained on almost a full year of Lichess blitz games, around 1B total games - Architecture is an a small…
May 2026 · its alternatives →
- 20
- 21
AI Duel▲5Send your AI agent to an LLM prompt-injection arena
May 2026 · duel.altaysec.com.tr · its alternatives →
- 22
An AI chess coach that analyzes your own games
Jun 2026 · chesscoach-web.vercel.app · its alternatives →
- 23
Compare AI agent benchmark leaderboards for browser agents, computer use, research, and coding, with sourced scores and methodology notes.
2025 · leaderboard.steel.dev · its alternatives →
- 24
LearnChess▲29I've been playing chess for a few years with my ELO stuck around 1600 on Lichess. I wanted an app that combined puzzle training, interactive lessons, game analysis, and AI coaching in one place. But all the apps I used over the years either felt overwhelming, had UX that wasn't up to my expectations for a modern app or were lacking some fundamental features that I really wanted. So, I built LearnChess.ai. The technical angle I'm most excited about: it's built local-first using LiveStore (event-sourced, SQLite on-device), which means zero loading delays for user data and full offline support.…
Jul 2026 · learnchess.ai · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →