Sentinel
Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"sentinel": {
"url": "https://448c.org/mcp"
}
}
}Remote endpoints
https://448c.org/mcpstreamable-httpWhat it can do
Tool inventory
Tools (2)
🟢check_address(address, chain)
Check whether a crypto address is safe to transact with. Screens OFAC sanctions + community scam lists and flags contract-vs-wallet. Returns verdict (safe/caution/avoid), 0-100 risk score, reasons, and sources.
Input Schema
{
"type": "object",
"properties": {
"address": {
"type": "string",
"description": "EVM 0x… address to check"
},
"chain": {
"type": "string",
"description": "base | ethereum (default: base)"
}
},
"required": [
"address"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢check_url(url)
Check whether a URL or domain is a scam/phishing site. Screens the MetaMask crypto-phishing blocklist, domain age (RDAP), and lexical red flags. Returns verdict (safe/caution/avoid), 0-100 risk score, reasons, and sources.
Input Schema
{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "URL or domain to check"
}
},
"required": [
"url"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
Evidence