FlagQuantum MCP Server runs on your own machine — the client starts it, so there is no endpoint to ping. 557 installs a week from pypi. Last commit 27 Oct 2026.
Build, compile, run and export FlagQuantum circuits locally. No credentials or outbound network.
What the code does
We read the source, 3 d ago · rules 995398eba69f
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.
commit = subprocess.check_output(
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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 flagquantum-mcp-server -- uvx flagquantum-mcp-server{
"mcpServers": {
"flagquantum-mcp-server": {
"command": "uvx",
"args": [
"flagquantum-mcp-server"
]
}
}
}[mcp_servers.flagquantum-mcp-server]
command = "uvx"
args = ["flagquantum-mcp-server"]{
"mcpServers": {
"flagquantum-mcp-server": {
"command": "uvx",
"args": [
"flagquantum-mcp-server"
]
}
}
}{
"servers": {
"flagquantum-mcp-server": {
"type": "stdio",
"command": "uvx",
"args": [
"flagquantum-mcp-server"
]
}
}
}Optional settings from the registry entry, left out of the block above:
FLAGQUANTUM_MCP_MAX_QUBITS (Largest circuit width the server will process. Defaults to 24), FLAGQUANTUM_MCP_MAX_GATES (Largest instruction count the server will process. Defaults to 10000), FLAGQUANTUM_MCP_MAX_IR_BYTES (Largest serialized circuit payload accepted, in bytes. Defaults to 262144).
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FlagQuantum MCP Server — questions
Answers built from our own checks of this server.