Big Dog Mining

Free MSHA mine safety data and search across 22 mining engineering handbooks, with page citations.

Hosted MCP Server

npx add-mcp 'https://mcp.bigdogmining.com/mcp'

Installs into Claude Code, Codex, Cursor and more

Documentation

MSHA data. In your AI. Free.

MSHA accidents since 2000 and citations since 1994, asked in plain words inside Claude, ChatGPT or Cursor. Counts, rates, trends and charts, each with its source.

Connect URL

https://mcp.bigdogmining.com/mcp

Paste it into your AI app as a custom connector. How, step by step.

Also on this connection: the mining engineering handbooks.

MSHA's own records, ready to ask.

  • Accidents and injuries. Every reported incident since 2000, by cause, activity, body part, equipment, hour, experience, mine and company.
  • Citations and orders. 3.09 million enforcement actions since 1994, by standard cited, negligence and significant and substantial.
  • Rates, not just counts. Injuries per 200,000 hours for mines, operators, contractors and the whole industry, so size does not hide the story.
  • What happened. Search MSHA's accident narratives in your own words. It matches on meaning, not just the words.
  • Charts. Ask for a chart and it draws it from the same query, with the source on it.
  • Canada. British Columbia mine incident reports and Quebec mining injury claims, each with the government source.

Accident counts run through the last complete month: August 2026 when we checked on November 6, 2026. Newer months are left out until MSHA's reporting catches up, and the answer says so.

Real questions, by who asks them.

We ran every one of these against the live server on November 6, 2026. The numbers under each are what came back, shortened. Your AI turns them into a plain answer and shows the source.

Safety manager

Where the injuries are, so the toolbox talk lands.

MSHA data

What hurt people most at surface mines in 2025?

Over-exertion

309 injuries

Caught between a moving and a still object

306 injuries

Struck by an object

253 injuries

Source: MSHA open government data

MSHA data

Which body parts got hurt most underground in 2025?

Fingers and thumb

335 injuries

Shoulders

160 injuries

Back

154 injuries

Knee

137 injuries

Source: MSHA open government data

MSHA data

What time of day did injuries peak in 2025?

10:00 to 10:59

409 injuries

09:00 to 09:59

370 injuries

11:00 to 11:59

365 injuries

00:00 to 00:59

83 injuries

The quietest hour, for comparison, is the last row.

Source: MSHA open government data

Superintendent

Who gets hurt and when, for crew planning.

MSHA data

How much mining experience did injured miners have in 2025?

1 to 5 years

1,691 injuries

5 to 15 years

1,222 injuries

15 years or more

1,038 injuries

Under 1 year

883 injuries

Source: MSHA open government data

MSHA data

Which day of the week had the most injuries in 2025?

Monday

929 injuries

Friday

742 injuries

Sunday

227 injuries

Monday, Friday and Sunday shown. Every day comes back in the answer.

Source: MSHA open government data

Compliance manager

What the inspectors write up, before they write you up.

MSHA data

Which standards were cited most at metal and nonmetal mines in 2025?

56.14107(a)

2,460 citations

50.30(a)

2,093 citations

56.20003(a)

2,002 citations

56.12004

1,936 citations

56.14100(b)

1,634 citations

The citations by 30 CFR section, as MSHA records them.

Source: MSHA open government data

Owner and contractor

Rates, not raw counts, so size does not hide the story.

MSHA data

What is the contractor injury rate trend, 2021 to 2025?

2021

1.199 per 200,000 hours

2025

1.07 per 200,000 hours

Contractors on record, 2025

6,161

Source: MSHA open government data

MSHA data

How did coal compare with metal and nonmetal in 2025?

Coal

2.758 injuries per 200,000 hours, 8 deaths

Metal and nonmetal

1.462 injuries per 200,000 hours, 25 deaths

Operator and contractor hours together.

Source: MSHA open government data

MSHA data

Which states had the most mining deaths in 2025?

West Virginia

6

Texas

4

Florida

3

Missouri

3

Source: MSHA open government data

Trainer and investigator

What actually happened, in MSHA's own words.

Accident narratives

Find incidents where a haul truck went over or through the berm at the dump.

  • Tensleep Mine, Wyoming, March 17, 2023: "ran up on the berm, flipping the bed of the haul truck over onto the road"
  • Colowyo Mine, Colorado, November 16, 2021: "The berm sloughed off and the truck became stuck."
  • Freeport-McMoRan Morenci Inc., Arizona, January 15, 2010: "the haul truck went through the berm and rolled"

Matched on meaning, not just the words.

Source: MSHA open government data

Canada

British Columbia and Quebec, each with the government source.

British Columbia

What kinds of incidents did BC mines report in 2024?

Mobile equipment

277 reports

Operations

66 reports

Blasting and explosives

32 reports

Geotechnical

23 reports

Source: Province of British Columbia, Chief Inspector of Mines weekly incident reports

Quebec

Which body parts show up most in Quebec mining injury claims for 2023?

Back and spine

166 claims

Fingers and nails

95 claims

Ears

75 claims

Quebec's mining sector here includes quarrying and oil and gas.

Source: CNESST accepted injury claims, Donnees Quebec

Answers come from public data. They are research aids, not legal or engineering advice: decisions on a live operation belong to the competent person on site.

The mining engineering handbooks come with it.

22 references, over 12,000 pages: blasting, ground control, ventilation, processing, haulage and mine planning. Short quotes with the book and page.

Two minutes, once.

You need the connect URL and a work email. Sign-up is free: we email you a 6-digit code, you press Approve, and you are in. Signing up also adds you to The Pulse, our mining newsletter. One click unsubscribes, and the tools stay free either way.

One connection gives your AI both: MSHA safety data and the mining engineering handbooks. Connect once from either page.

Claude

On claude.ai or the Claude desktop app. These are screenshots from a real sign-up.

  1. 01

    Open Customize, then Connectors.

    In Claude, open Customize in the sidebar (or Settings, then Customize). On the Connectors tab, press Add and pick Add custom connector. Claude settings on Customize, Connectors, with the Add menu open on Add custom connector Claude settings on Customize, Connectors, with the Add menu open on Add custom connector
  2. 02

    Name it and paste the URL.

    Name: Big Dog Mining. URL: https://mcp.bigdogmining.com/mcp. Press Continue. The Add custom connector dialog with the name Big Dog Mining and the server URL filled in The Add custom connector dialog with the name Big Dog Mining and the server URL filled in
  3. 03

    Keep the defaults and press Add.

    Claude detects the sign-in on its own: Sign in now is already picked. Nothing else to set. Step 2 of the dialog with Sign in now and Use Claude's published identity both marked Detected Step 2 of the dialog with Sign in now and Use Claude's published identity both marked Detected
  4. 04

    Press Connect.

    Big Dog Mining now shows in your connectors. Press Connect to sign in. The new connector with the message You're not connected to Big Dog Mining yet and a Connect button The new connector with the message You're not connected to Big Dog Mining yet and a Connect button
  5. 05

    Enter your work email.

    Tick the box and press Email me a code. The code comes from Big Dog Mining within a minute. Check spam if it does not. The Big Dog Mining sign-up page asking for an email, with the newsletter box ticked and an Email me a code button The Big Dog Mining sign-up page asking for an email, with the newsletter box ticked and an Email me a code button
  6. 06

    Type the 6-digit code.

    It works for 15 minutes. Lost it? Press Send a new code. The Check your email page with a box for the 6-digit code and a Continue button The Check your email page with a box for the 6-digit code and a Continue button
  7. 07

    Press Approve.

    The page lists what Claude can do with it. It is read only: it sees nothing of yours and changes nothing. You land back in Claude. The Review access page listing what Claude will be able to do, with Cancel and Approve buttons The Review access page listing what Claude will be able to do, with Cancel and Approve buttons
  8. 08

    Optional: stop the approval prompts.

    All ten tools are read only. Set Read-only tools to Always allow and Claude will not stop to ask before each one. The connected Big Dog Mining connector with its ten read-only tools and the tool permission setting The connected Big Dog Mining connector with its ten read-only tools and the tool permission setting
  9. 09

    Ask.

    Start a new chat and ask in plain words. Saying "using the Big Dog Mining connector" helps Claude pick it the first time. Claude answering a question about fatal conveyor incidents with three MSHA cases and the MSHA source line Claude answering a question about fatal conveyor incidents with three MSHA cases and the MSHA source line

ChatGPT

Custom connectors depend on your ChatGPT plan and settings. Menu names change between releases; look for these.

  1. Open Settings, then Apps and connectors. Under Advanced settings, turn on Developer mode.
  2. Press Create. Name: Big Dog Mining. URL: https://mcp.bigdogmining.com/mcp. Authentication: OAuth.
  3. ChatGPT opens the same Big Dog Mining sign-up as above: email, 6-digit code, Approve.
  4. In a new chat, turn the connector on from the tools menu and ask.

Cursor

For engineers who live in an editor.

  1. Open Cursor Settings, then the MCP section, and add a new MCP server. Or edit ~/.cursor/mcp.json by hand.
  2. Add this server:
    {
      "mcpServers": {
        "big-dog-mining": {
          "url": "https://mcp.bigdogmining.com/mcp"
        }
      }
    }
    
  3. Cursor asks you to sign in the first time. Same steps: email, 6-digit code, Approve.

Any other app that supports remote MCP servers with sign-in works the same way: paste the URL, then sign in with your email.

Want the same thing on your own documents?

Procedures, contracts, ground support plans and past reports, searchable by asking, in your own cloud. Every answer shows the page it came from.

More free tools

  • The handbooks 22 mining engineering references in your AI app, quoted with the book and page.
  • Field Tools 16 free engineering calculators for mining and heavy civil. Every equation cited to the handbook and the page.
  • The Pulse Mining news worth knowing, every two weeks. New tools are announced there first.