@assaylabs/mcp-server

MCP server for Assay Discovery and trust infrastructure tools.

This server exposes Assay agent lookup, semantic search, and ecosystem stats over standard MCP stdio transport so tools like Claude Desktop and Cursor can query the Assay ecosystem directly.

Install

npm install @assaylabs/mcp-server

Or run it directly with npx:

npx @assaylabs/mcp-server

Environment

The server reads the Discovery API base URL from:

• ASSAY_API_URL
• fallback: VITE_API_URL
• default: https://assay-discovery-api.onrender.com

Example:

ASSAY_API_URL=https://assay-discovery-api.onrender.com npx @assaylabs/mcp-server

Tools

check_agent_trust

Input:

{
  "address": "erc8004-35"
}

Returns:

• name
• trustAssessment
• assayScore
• stake
• erc8004AgentId
• capability

search_agents

Input:

{
  "query": "smart contract security agent",
  "minScore": 60
}

Returns the top 5 ranked results from Assay Discovery, optionally filtered by minimum trustAssessment.

get_ecosystem_stats

No input.

Returns:

• total indexed agents
• average trust assessment
• 75+ trust count
• 60+ trust count
• full metadata count
• top agents

Claude Desktop

Add this to your Claude Desktop MCP config.

Installed package:

{
  "mcpServers": {
    "assay": {
      "command": "npx",
      "args": ["-y", "@assaylabs/mcp-server"],
      "env": {
        "ASSAY_API_URL": "https://assay-discovery-api.onrender.com"
      }
    }
  }
}

Local repo checkout:

{
  "mcpServers": {
    "assay": {
      "command": "node",
      "args": ["C:/ASSAY/assay-protocol/mcp-server/dist/index.js"],
      "env": {
        "ASSAY_API_URL": "https://assay-discovery-api.onrender.com"
      }
    }
  }
}

Cursor

Add this to your Cursor MCP configuration.

Installed package:

{
  "mcpServers": {
    "assay": {
      "command": "npx",
      "args": ["-y", "@assaylabs/mcp-server"],
      "env": {
        "ASSAY_API_URL": "https://assay-discovery-api.onrender.com"
      }
    }
  }
}

Local repo checkout:

{
  "mcpServers": {
    "assay": {
      "command": "node",
      "args": ["C:/ASSAY/assay-protocol/mcp-server/dist/index.js"],
      "env": {
        "ASSAY_API_URL": "https://assay-discovery-api.onrender.com"
      }
    }
  }
}

Notes

• Transport: stdio
• Package name: @assaylabs/mcp-server
• License: MIT