Opensanctions MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 31 installs a week from npm. Last commit 31 Mar 2026.
Sanctions screening and PEP checks via OpenSanctions API for AI agents
Nothing serious here today
Today is the operative word: we check Opensanctions MCP 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 opensanctions-mcp -e 'OPENSANCTIONS_API_KEY=<OPENSANCTIONS_API_KEY>' -- npx -y opensanctions-mcp{
"mcpServers": {
"opensanctions-mcp": {
"command": "npx",
"args": [
"-y",
"opensanctions-mcp"
],
"env": {
"OPENSANCTIONS_API_KEY": "<OPENSANCTIONS_API_KEY>"
}
}
}
}[mcp_servers.opensanctions-mcp]
command = "npx"
args = ["-y", "opensanctions-mcp"]
env = { OPENSANCTIONS_API_KEY = "<OPENSANCTIONS_API_KEY>" }{
"mcpServers": {
"opensanctions-mcp": {
"command": "npx",
"args": [
"-y",
"opensanctions-mcp"
],
"env": {
"OPENSANCTIONS_API_KEY": "<OPENSANCTIONS_API_KEY>"
}
}
}
}{
"servers": {
"opensanctions-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"opensanctions-mcp"
],
"env": {
"OPENSANCTIONS_API_KEY": "<OPENSANCTIONS_API_KEY>"
}
}
}
}Put your own value in place of
<OPENSANCTIONS_API_KEY> (OpenSanctions API key. Get a free key at https://www.opensanctions.org/api/).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
OPENSANCTIONS_API_URL (API URL. Defaults to https://api.opensanctions.org. Set to your self-hosted yente URL if applicable).
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Opensanctions MCP — questions
Answers built from our own checks of this server.