Crest Verify
FreeNot checkedVerify x402 endpoints before your agent spends. Three tools: verify (SPEND/CAUTION/INVESTIGATE/DO NOT SPEND backed by 50K+ services), passport (full trust ident
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
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/verifypassport->supership.crestsystems.ai/passportrisk_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:

License
MIT. Crest Deployment Systems LLC.
Install Crest Verify in Claude Desktop, Claude Code & Cursor
unyly install crest-verifyInstalls 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-mcpFAQ
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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