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Crest Verify

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Verify x402 endpoints before your agent spends. Three tools: verify (SPEND/CAUTION/INVESTIGATE/DO NOT SPEND backed by 50K+ services), passport (full trust ident

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About

Verify x402 endpoints before your agent spends. Three tools: verify (SPEND/CAUTION/INVESTIGATE/DO NOT SPEND backed by 50K+ services), passport (full trust identity), risk_check (deep assessment). No API keys, no signup.

README

Crest Verify

MCP server for Crest Verify. Check any x402 endpoint before your agent spends.

Install

Claude Code

claude mcp add crest-verify npx @crestdeploymentsystems/verify-mcp

Cursor / Windsurf / Continue

Add to your MCP config (.cursor/mcp.json, etc.):

{
  "mcpServers": {
    "crest-verify": {
      "command": "npx",
      "args": ["@crestdeploymentsystems/verify-mcp"]
    }
  }
}

Tools

verify

Quick check. Returns SPEND / CAUTION / INVESTIGATE / DO NOT SPEND backed by 50K+ classified services.

passport

Full trust identity: score, grade, methodology, on-chain observation, receipt history, provider paths.

risk_check

Deep risk assessment with anomaly detection and scoring methodology.

API

All tools call the public Crest Verify API:

  • verify -> crestsystems.ai/api/verify
  • passport -> supership.crestsystems.ai/passport
  • risk_check -> supership.crestsystems.ai/v1/risk-check

No API keys required. No signup. No payment.

Also available

  • CLI: npx @crestdeploymentsystems/verify <url>
  • API: curl https://crestsystems.ai/api/verify?url=<endpoint>
  • Badge: ![](https://crestsystems.ai/api/badge?url=<endpoint>)

License

MIT. Crest Deployment Systems LLC.

from github.com/andysalvo/crest-verify-mcp

Install Crest Verify in Claude Desktop, Claude Code & Cursor

Recommended · one command, every IDE
unyly install crest-verify

Installs into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.

First time? Get the CLI: curl -fsSL https://unyly.org/install | sh

Or configure manually

Run in your terminal:

claude mcp add crest-verify -- npx -y @crestdeploymentsystems/verify-mcp

FAQ

Is Crest Verify MCP free?

Yes, Crest Verify MCP is free — one-click install via Unyly at no cost.

Does Crest Verify need an API key?

No, Crest Verify runs without API keys or environment variables.

Is Crest Verify hosted or self-hosted?

A hosted option is available: Unyly runs the server in the cloud, no local setup required.

How do I install Crest Verify in Claude Desktop, Claude Code or Cursor?

Open Crest Verify on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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