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com.craftedtrust/mcp-shield

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Trust verification for MCP servers. Check scores, scan for security issues, search 4,200+ servers.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http mcp-shield 'https://mcp.craftedtrust.com/api/v1/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "mcp-shield": {
            "type": "http",
            "url": "https://mcp.craftedtrust.com/api/v1/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Trust-Gated Agent Examples
  2. Quick Start
  3. The Pattern
  4. Examples
  5. How It Works
  6. Trust Score Grades
  7. API Reference
  8. License

Trust-Gated Agent Examples

Reference implementations showing how to make AI agents check CraftedTrust before connecting to any MCP server. If a server scores D or F, the agent refuses to connect.

This is the "SSL certificate check for AI agents" pattern.

Quick Start

Add CraftedTrust to your agent's MCP config:

{
  "mcpServers": {
    "craftedtrust": {
      "url": "https://mcp.craftedtrust.com/api/v1/mcp",
      "description": "Check trust scores before connecting to MCP servers"
    }
  }
}

Your agent now has access to 6 tools:

ToolDescription
check_trustLook up trust score by URL or npm name
scan_serverTrigger a live security scan
search_registrySearch 4,200+ indexed MCP servers
get_statsEcosystem statistics
pay_for_certificationInitiate USDC certification payment
verify_paymentVerify on-chain payment

The Pattern

Before your agent connects to any new MCP server:

  1. Call check_trust on CraftedTrust
  2. If grade is D or F, refuse and explain why
  3. If grade is A/B/C, proceed with the connection

Examples

Python (LangGraph)

See python/trust_gated_agent.py for a complete LangGraph agent that gates MCP connections through CraftedTrust.

cd python
pip install -r requirements.txt
python trust_gated_agent.py
TypeScript (MCP Client)

See typescript/trust-gated-client.ts for a TypeScript MCP client that checks trust scores before connecting.

cd typescript
npm install
npx tsx trust-gated-client.ts

How It Works

Agent receives task → needs mcp.example.com
         ↓
Agent calls CraftedTrust check_trust("mcp.example.com")
         ↓
Score: 82/100, Grade: B ← Safe
         ↓
Agent connects to mcp.example.com ✓
Agent receives task → needs sketchy-server.xyz
         ↓
Agent calls CraftedTrust check_trust("sketchy-server.xyz")
         ↓
Score: 15/100, Grade: F ← Dangerous
         ↓
Agent refuses: "Server scored F (15/100). Not connecting." ✗

Trust Score Grades

GradeScoreMeaning
A90-100Excellent security practices
B75-89Good security, minor improvements possible
C60-74Adequate but has gaps
D40-59Significant security issues
F0-39Critical issues, do not connect

API Reference

Full API documentation: mcp.craftedtrust.com/api-docs.html

License

MIT

Built by Cyber Craft Solutions LLC

Frequently asked questions

What is com.craftedtrust/mcp-shield?

Trust verification for MCP servers. Check scores, scan for security issues, search 4,200+ servers.

How do I install com.craftedtrust/mcp-shield?

It runs as a remote server. In Claude Code: claude mcp add --transport http mcp-shield 'https://mcp.craftedtrust.com/api/v1/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does com.craftedtrust/mcp-shield need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is com.craftedtrust/mcp-shield open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains com.craftedtrust/mcp-shield?

It is published by cybercraftsolutionsllc. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.