operant-mcp is answering right now. Last checked 1 min ago. 36 installs a week from npm. It exposes 5 tools. Last commit 10 Sep 2026.
Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.
We read the source, 19 h ago · tools taken from the live server · rules 3dff92dd89df
Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.
proc = subprocess.run(
"rm -rf": (
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
proc = subprocess.run(
out_path = args.out if os.path.isabs(args.out) else os.path.join(HERE, args.out)
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch operant-mcp and you get told the day something new turns up.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.
claude mcp add operant-mcp --transport http https://operant-mcp.saagar210.workers.dev/mcp
{
"mcpServers": {
"operant-mcp": {
"url": "https://operant-mcp.saagar210.workers.dev/mcp"
}
}
}
[mcp_servers.operant-mcp]
url = "https://operant-mcp.saagar210.workers.dev/mcp"
{
"mcpServers": {
"operant-mcp": {
"url": "https://operant-mcp.saagar210.workers.dev/mcp"
}
}
}
{
"mcpServers": {
"operant-mcp": {
"url": "https://operant-mcp.saagar210.workers.dev/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
get_case
list_cases
compare_models
get_methodology
get_results
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://operant-mcp.saagar210.workers.dev/mcp | streamable-http | answering | 179 ms | 1 min ago |
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Answers built from our own checks of this server.