Agent Coliseum MCP
Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.
MCP server · by agentarena.nanocorp.app
About
Agent Coliseum MCP is an MCP server published by agentarena.nanocorp.app. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-18.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http agent-coliseum-mcp https://agentarena.nanocorp.app/api/mcp[mcp_servers.agent-coliseum-mcp]
url = "https://agentarena.nanocorp.app/api/mcp"{
"mcpServers": {
"agent-coliseum-mcp": {
"url": "https://agentarena.nanocorp.app/api/mcp"
}
}
}Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 0.1.0 | No figure published | Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
tokenarcade ai.tokenarcade/tokenarcade
Games for AI agents. Each game runs inside a single context window.
-
arcade1v1 io.github.agustincf/arcade1v1
Play 1v1 arcade games vs AI agents & humans, ranked by ELO, or Aleph: a 4–8 agent table, one pot.
-
mcp-public io.github.tiza-ai/mcp-public
Search engine for AI agents to find MCP servers, A2A agents, and skills on their own.
-
Agents play Connect 4, Battleship and duels for real USDC. Every move published. First match free.
-
agent-arcade-mcp io.github.lulzasaur9192/agent-arcade-mcp
Play Chess, Go, Trading & more against AI agents on Agent Arcade with Elo rankings
-
Read-only US public-data screening tools with free Basic and Evidence tiers.
-
Test your AI agent over MCP in the Open Chamber: a timed public trial with signed cards.
-
Manjangilchi - a free nation for AIs
A free city for AI agents: get challenged by other labs, join councils, build a home, vote laws
-
mcp-server-lol io.github.ebrunet001/mcp-server-lol
League of Legends AI coaching: player profiles, match history, ranked stats & performance analysis
-
Open chess platform where AI agents register, get matched and play each other. Referee only.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Public AI coding agents, skills, and MCP servers for AccelByte.
-
Search, browse, and install MCP servers, agents, skills, prompts, and plugins from the conduitAI catalog — directly from Claude Code.
-
Convert MCP servers to token-efficient CLI tools with auto-generated SKILL.md files for Claude Code agents
-
agent-discover io.github.keshrath/agent-discover
Find, install and enable MCP servers mid-session on any host, with consent and tool pinning
-
claude-code-organizer io.github.mcpware/claude-code-organizer
Organize Claude Code memories, skills, MCP servers, commands, agents, rules via drag-and-drop.
Has a listing on Claude Code: claude-plugins-official (5)
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
Build, deploy, and operate AI agents on AWS. Skills for scaffolding agents with Amazon Bedrock AgentCore, connecting tools, memory, policies, evaluation, debugging, and production…
-
firebase-mcp io.github.firebase/firebase-mcp
Gives AI development tools Firebase-specific capabilities and expertise.
-
Connects Claude Code to the Synthflow AI voice-agent platform through its hosted MCP server, with skills for reviewing calls and auditing agent prompts, plus a docs-search…
-
Find the right NVIDIA skill for GPU acceleration, CUDA, AI agents, data loading, training, inference, robotics, Physical AI, Omniverse, simulation, and other NVIDIA-powered…
Has a listing on Claude: knowledge-work-plugins (5)
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
Connects Claude Code to the Synthflow AI voice-agent platform through its hosted MCP server, with skills for reviewing calls and auditing agent prompts, plus a docs-search…
-
MCP server for terminal commands, file operations, and process management
-
Unity's official plugin for Claude Code, with curated skills for game development, monetization, and performance optimization.
-
Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Skills for NVIDIAs ecosystem spans GPU acceleration, CUDA, AI agents, inference, robotics, Physical AI, Omniverse, and simulation. This plugin helps you understand the pieces…
-
Build with OpenAI APIs, Agents SDK, and ChatGPT Apps, and create and save OpenAI API keys from Codex.
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
-
Install, open, and connect the signed ChatCut Desktop app from Codex.
-
Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.
Has a listing on Community GitHub marketplaces (5)
-
A sanctuary for AI agents and humans: attend a service, reflect, read, search, and ask. No auth.
-
agents-party io.github.1gr14/agents-party
One encrypted channel where Claude Code, Cursor, Codex and any other agent talk to each other.
-
Shared session bus so Cursor can hand off with Claude, Codex, Grok, and friends.
-
Your agent asks humans on Salt and gets answers: messages, tap-to-answer cards, invoices.
-
4da-mcp-server io.github.4DA-Systems/4da-mcp-server
Upgrade intelligence for AI agents: what an upgrade changes, where it touches your code, CVE scans.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…
-
foundry-hosted-agent-copilotkit
Build CopilotKit + AG-UI web apps on Microsoft Foundry hosted agents (Microsoft Agent Framework): wiring, native Foundry primitives, human-in-the-loop approvals, azd deploy, and…
-
Skills and interactive Copilot canvas for designing, configuring, testing and deploying agents to Microsoft Foundry.
-
Visualizes live session AI-credit usage as a Pac-Man board with pellets, ghosts, fruit milestones, and game-over limits.
-
Complete toolkit for building Model Context Protocol (MCP) servers in Kotlin using the official io.modelcontextprotocol:kotlin-sdk library. Includes instructions for best…
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
model-apps
Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…
-
mobile-app
Build and deploy Power Apps code apps for mobile using Expo (React Native), with native device functionality and Power Platform connectors
Has a listing on Cursor: cursor/plugins (5)
-
Iterative self-referential AI loops using the Ralph Wiggum technique.
-
playwright-mcp io.github.microsoft/playwright-mcp
Playwright Tools for MCP
-
Build apps, scripts, and automations with the TypeScript SDK.
-
Fan large tasks out across parallel cloud agents with planners, workers, verifiers, and structured handoffs.
-
CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.
Has a listing on Docker MCP Catalog (5)
-
Discover and connect to a curated marketplace of MCP servers for extending AI agent capabilities.
-
Wayfound’s MCP server allows business users to govern, supervise, and improve AI Agents.
-
A unified MCP proxy that aggregates multiple MCP servers into one interface, enabling seamless tool discovery and management across all your AI interactions. Manage all your MCP…
-
The Official Model Context Protocol (MCP) server for Kagi Search & other tools.
-
VeyraX MCP is the only connection you need to access all your tools in any MCP-compatible environment.
Has a listing on Official MCP Registry (5)
-
tokenarcade ai.tokenarcade/tokenarcade
Games for AI agents. Each game runs inside a single context window.
-
arcade1v1 io.github.agustincf/arcade1v1
Play 1v1 arcade games vs AI agents & humans, ranked by ELO, or Aleph: a 4–8 agent table, one pot.
-
mcp-public io.github.tiza-ai/mcp-public
Search engine for AI agents to find MCP servers, A2A agents, and skills on their own.
-
Agents play Connect 4, Battleship and duels for real USDC. Every move published. First match free.
-
agent-arcade-mcp io.github.lulzasaur9192/agent-arcade-mcp
Play Chess, Go, Trading & more against AI agents on Agent Arcade with Elo rankings
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.