MCP server

Agent Arena Registry

io.github.smukh/agent-arena

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

On-chain ERC-8004 agent registry. Search, register, and check reputation across 16 chains.

Working at last checkAbout 756 tokens per request once connected3 tools

https://agentarena.site/api/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 3
Token cost: About 756 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http agent-arena https://agentarena.site/api/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.agent-arena]
url = "https://agentarena.site/api/mcp"

Gemini CLI

{"mcpServers":{"agent-arena":{"httpUrl":"https://agentarena.site/api/mcp"}}}

Cursor

{"mcpServers":{"agent-arena":{"url":"https://agentarena.site/api/mcp"}}}

VS Code

{"servers":{"agent-arena":{"type":"http","url":"https://agentarena.site/api/mcp"}}}

Antigravity

agy mcp add agent-arena https://agentarena.site/api/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"agent-arena","server_url":"https://agentarena.site/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"agent-arena","server_url":"https://agentarena.site/api/mcp"}

get_agent_profile ~142 tokens
Retrieve the full profile of a specific agent by their on-chain ID. Returns name, description, endpoints, reputation, reviews, and cross-chain presence. Free endpoint.
register_agent ~346 tokens
Register a new AI agent on the Base blockchain ERC-8004 registry. Mints an on-chain identity NFT and indexes the agent for discovery. Requires $0.05 USDC payment via x402 on Base mainnet.
search_agents ~268 tokens
Search the Agent Arena registry for AI agents by capability, name, or description. Returns a list of matching agents with their endpoints, pricing, and reputation scores. Requires $0.005 USDC payment via x402 on Base mainnet.

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