Jev MCP Server runs on your own machine — the client starts it, so there is no endpoint to ping. 188 installs a week from pypi.
MCP server for Jev (TypeSafe System One): typed decisions with calibrated probabilities.
Today is the operative word: we check Jev MCP Server every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 jev-mcp-server -- uvx jev-mcp-server
{
"mcpServers": {
"jev-mcp-server": {
"command": "uvx",
"args": [
"jev-mcp-server"
]
}
}
}
[mcp_servers.jev-mcp-server]
command = "uvx"
args = ["jev-mcp-server"]
{
"mcpServers": {
"jev-mcp-server": {
"command": "uvx",
"args": [
"jev-mcp-server"
]
}
}
}
{
"servers": {
"jev-mcp-server": {
"type": "stdio",
"command": "uvx",
"args": [
"jev-mcp-server"
]
}
}
}
MCP server over TypeSafe Jev: typed ask, rank and check judgments return calibrated probabilities.
Typed decisions with Jev / System One via OpenRouter or TypeSafe: classify, verify, rerank, decide.
Calibrated decisions for agents: choice, yes/no and score questions answered with probabilities.
Calibrated advice for coding agents: typed questions in, probabilities out. Apple Silicon.
Typed Jev decisions in one tool: choice, score, yes/no probabilities via any compatible endpoint.
Calibrated probability ranges for forecasting questions, with the assumptions behind them.
Typed, calibrated and certified decisions over a context, with abstention and evidence.
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Answers built from our own checks of this server.