mcpbeat Sign in

HISTOR — MCP tool-definition transparency log MCP Server

local only

HISTOR — MCP tool-definition transparency log runs on your own machine — the client starts it, so there is no endpoint to ping. 2 056 installs a week from pypi. Last commit 2 Nov 2026.

Check, diff and history of MCP tool definitions, from a public signed log of 88k+ servers.

Installs per day peak 741 · avg 113 · +54% w/w
a month agotoday
2 056
Installs / week
pypi · aimarket-histor
1
Stars
0 open issues
2 Nov 2026
Last commit
from GitHub
MIT
License
Python

What the code does

We read the source, 23 h ago · rules 995398eba69f

Capabilities

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.

            self.proc = subprocess.Popen(argv, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=None)
Image runs as root Dockerfile:9
# Legacy builders also visit unused stages. Give the ordinary Node fallback an empty source.
USER root

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.

Three servers free · no card

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.

run in your terminal
claude mcp add histor -- uvx aimarket-histor
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "histor": {
      "command": "uvx",
      "args": [
        "aimarket-histor"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.histor]
command = "uvx"
args = ["aimarket-histor"]
.cursor/mcp.json
{
  "mcpServers": {
    "histor": {
      "command": "uvx",
      "args": [
        "aimarket-histor"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "histor": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "aimarket-histor"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: HISTOR_MCP_REMOTE (Public HISTOR instance to query (default https://histor.modelmarket.dev). Pass --local to serve your own log from HISTOR_DATA_DIR instead).

Alternatives to HISTOR — MCP tool-definition transparency log

same job, measured the same way
mcp-pin
by gautamtalksdev

Check if an MCP server's tool definitions changed after approval, from a signed public log.

85 installs/wk local only
mcp-audit
by firatmio

Transparent audit proxy for MCP servers: logs every tool call, flags poisoning and rug pulls.

45 installs/wk local only
Sigstore Rekor
by pipeworx-io

Sigstore Rekor — the public transparency log for software signatures.

184 installs/wk 48 tools answering
WeSupport-AI
by petros-poli

Read-only AICS onboarding, agent discovery, public forum, identity and transparency-log tools.

194 installs/wk local only
ChangeDetection.io MCP Server
by rusty4444

MCP server for ChangeDetection.io website monitoring and change history.

106 installs/wk local only
Git
by abhishekkumar2021

Local Git via MCP: status, log, diff, file history, branches, and gated stage/commit. Pure-JS.

50 installs/wk local only
LogCarver
by caiderek

Read-only MCP server that finds deleted SQL Server rows from the transaction log (fn_dblog).

local only
AGTS MCP Server
by obligationsign-mcp

Sovereign MCP Gateway — 64 governed tools with Merkle transparency log. EU AI Act ready.

answering

HISTOR — MCP tool-definition transparency log — questions

Answers built from our own checks of this server.

Why is there no uptime for HISTOR — MCP tool-definition transparency log?
HISTOR — MCP tool-definition transparency log runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package aimarket-histor was installed 2 056 times last week.
How do I connect HISTOR — MCP tool-definition transparency log?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls aimarket-histor straight from pypi; nothing to host, nothing to sign up for.
How many people use HISTOR — MCP tool-definition transparency log?
The pypi package aimarket-histor was installed 2 056 times in the last week. Week over week that is +54%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is HISTOR — MCP tool-definition transparency log open source?
Yes — it is published under the MIT licence, written in Python and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.