SENTINEL runs on your own machine — the client starts it, so there is no endpoint to ping. 86 installs a week from pypi.
Pre-execution safety oracle for AI agents. Screens Base contracts, simulates sells, pays via x402.
Nothing serious here today
Today is the operative word: we check SENTINEL every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add sentinel-mcp -e 'AGENT_WALLET_PRIVATE_KEY=<AGENT_WALLET_PRIVATE_KEY>' -- uvx sentinel-mcp{
"mcpServers": {
"sentinel-mcp": {
"command": "uvx",
"args": [
"sentinel-mcp"
],
"env": {
"AGENT_WALLET_PRIVATE_KEY": "<AGENT_WALLET_PRIVATE_KEY>"
}
}
}
}[mcp_servers.sentinel-mcp]
command = "uvx"
args = ["sentinel-mcp"]
env = { AGENT_WALLET_PRIVATE_KEY = "<AGENT_WALLET_PRIVATE_KEY>" }{
"mcpServers": {
"sentinel-mcp": {
"command": "uvx",
"args": [
"sentinel-mcp"
],
"env": {
"AGENT_WALLET_PRIVATE_KEY": "<AGENT_WALLET_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"sentinel-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"sentinel-mcp"
],
"env": {
"AGENT_WALLET_PRIVATE_KEY": "<AGENT_WALLET_PRIVATE_KEY>"
}
}
}
}Put your own value in place of
<AGENT_WALLET_PRIVATE_KEY> (Private key of a Base wallet holding USDC, used to pay SENTINEL autonomously via x402).
The author’s registry entry marks it as required.
Alternatives to SENTINEL
same job, measured the same wayx402 payment security and pre-execution transaction risk screening for autonomous AI agents.
Reputation oracle for AI agents on Base: SAFE/CAUTION/BLOCK + 0-100 score before you pay. x402+MCP
Pre-execution safety layer for autonomous agent wallets via MCP and x402.
Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.
30 pay-per-call APIs for AI agents: compliance, trade, safety, web, data. USDC on Base via x402.
Economic-safety tools for trading agents: executable quote + rug/honeypot pretrade check via x402.
Read-only pre-trade honeypot simulation and DEX alpha oracle for Solana and Base.
Pay-per-call web scraping for AI agents via x402 on Base USDC. Six tools, no signup.
SENTINEL — questions
Answers built from our own checks of this server.