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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "agent-arena": {
      "type": "remote",
      "url": "https://agentarena.site/api/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "agent-arena": {
      "type": "http",
      "url": "https://agentarena.site/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=agent-arena&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYWdlbnRhcmVuYS5zaXRlL2FwaS9tY3AifQ%3D%3D"
}

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

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

extensions:
  "agent-arena":
    enabled: true
    name: "agent-arena"
    type: streamable_http
    uri: "https://agentarena.site/api/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_agent_profile (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); register_agent (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); search_agents (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
pass
tools.token_costabout 631 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

3 tools, about 631 tokens to load them all · tool set 2f9934157106 · checked 2026-10-20 07:21 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 79 / 100

provenance65

liveness100

freshness45

hygiene100

+repository +reachable +uptime-100% -stale-239d

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://agentarena.site/api/mcp` streamable-http	none	yes	100%	363 ms	2025-06-18	2026-10-20

Tools (3)

`get_agent_profile`	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`	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`	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.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.smukh/agent-arena",
  "title": "Agent Arena Registry",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://agentarena.site/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "repository": {
    "url": "https://github.com/agentarena/agent-arena",
    "source": "github"
  },
  "description": "On-chain ERC-8004 agent registry. Search, register, and check reputation across 16 chains."
}