Certspotter Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.1Updated Oct 24, 2026

Certificate transparency lookups from Cert Spotter. No key required.

VerifiedSTDIODesktop onlySecurity & Monitoring

Overview

AI-generated overview

Lets an assistant look up certificate transparency records from Cert Spotter without an API key.

What you can do
This local MCP server exposes Cert Spotter certificate transparency lookups to an assistant. Based on the registry description, it provides certificate transparency lookups and requires no key. The manifest lists no tools, so the exact operations are not documented here.
When to use it
Worth adding when an assistant needs to check certificate transparency data, such as looking up certificates issued for a domain, during security or infrastructure work. It is a narrow, single-purpose server, so it only helps if certificate transparency lookups are actually part of the task.
Requirements
Runs as a local process on the user's machine, installed from the npm package certspotter-mcp over stdio. Node.js is needed for the npm package. No environment variables, headers, or authentication are declared, but network access is implied by querying Cert Spotter.
Before you install
The description states no key is required and the manifest declares no credentials, so no secrets are requested. Lookups are sent to the third-party Cert Spotter service, so queries reveal which domains are being investigated. The manifest lists no tools, so review the package before installing to confirm what it actually does.

Installation

In SourceWeft

  1. Open Certspotter Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.1LatestSep 22, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.