honesty-mcp runs on your own machine — the client starts it, so there is no endpoint to ping. 70 installs a week from npm. Last commit 12 Oct 2026.
MCP server exposing 11 honesty-SDK kits (grounding, trust, audit, corroboration) as agent tools.
We read the source, 5 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.
built = new Function(`"use strict"; return (\n${source}\n);`)();
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
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.
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 honesty-mcp -- npx -y honesty-mcp
{
"mcpServers": {
"honesty-mcp": {
"command": "npx",
"args": [
"-y",
"honesty-mcp"
]
}
}
}
[mcp_servers.honesty-mcp]
command = "npx"
args = ["-y", "honesty-mcp"]
{
"mcpServers": {
"honesty-mcp": {
"command": "npx",
"args": [
"-y",
"honesty-mcp"
]
}
}
}
{
"servers": {
"honesty-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"honesty-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
HONESTY_MCP_ENABLE_CODE_EXEC (Set to exactly 1 to turn on the tools and inputs that run JavaScript sent by the calling agent (check_payout_invariance runtime mode, check_mutation_invariance, compute_divergence's groupBySource). Off by default; any other value leaves them off. Turning it on is not a sandbox: the code runs with this server's filesystem, network and environment access), HONESTY_MCP_WORKER_TIMEOUT_MS (Timeout in milliseconds for the worker thread (a time limit, not a sandbox) that runs caller-supplied JS source (check_payout_invariance runtime mode, check_mutation_invariance, compute_divergence's groupBySource). Defaults to 10000).
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Answers built from our own checks of this server.