Filecrux is in beta. The product may change as we learn from readers.

Filecrux

Read Filecrux inside your AI

Ask your AI about a company we cover and it reads our whole report — every number, every source, and the call we made. It is free and there is nothing to install. You paste one address.

mcp.filecrux.com

Copy that. It is the only thing you need.

Claude

  1. Open Settings, then Connectors.
  2. Choose to add a custom connector.
  3. Paste https://mcp.filecrux.com and save.

ChatGPT

  1. Open Settings, then Connectors.
  2. Choose to add a connector by URL.
  3. Paste https://mcp.filecrux.com and save.

Cursor, or any other coding tool

  1. Open its MCP settings.
  2. Add a new server over HTTP.
  3. Paste https://mcp.filecrux.com and save.

Claude Code

  1. Run claude mcp add --transport http filecrux https://mcp.filecrux.com in your terminal.

Then just ask

  • “What have you covered?”Your AI lists every company Filecrux has written about, newest filing first.
  • “Read me the Braskem report.”The whole report, in full, with the source behind every number it prints.
  • “How often is Filecrux right?”Every call we have made, and how each turned out. We publish the call before the answer is known, and a later filing settles it.

Every report is free to read and free to quote, as long as you say it came from Filecrux. If we have never written about a company, your AI will tell you so rather than guess — we cover small companies, and there are a lot of them we have not reached yet.

Writing code instead?

The same reports are a plain JSON API at filecrux.com/v1. No key, no sign-up. Every report comes back as markdown and as HTML, with the source behind every number, and /v1/calls is our whole accuracy record.

“MCP” stands for Model Context Protocol. It is the standard way to hand an AI a set of tools. You do not need to know any of that to use it — that is what the address above is for.

Read Filecrux inside your AI — Filecrux