autopsy-mcp

Read-only MCP (Model Context Protocol) server that exposes the data of an Autopsy case as standard Tools, usable from the Cline chat in VS Code (or from any other MCP client). The server is fully LLM-agnostic: it receives JSON arguments from tool calls and returns case-database data — all calls to OpenAI, Anthropic, Ollama etc. remain entirely on Cline's side.

Requirements

• Python 3.10+

• An Autopsy case on disk (a folder containing autopsy.db), or a multi-user PostgreSQL deployment

• The Cline extension in VS Code

Related MCP server: Obsidian Readonly MCP

Installation

git clone https://github.com/th0r10293847/autopsy-mcp.git
cd autopsy-mcp
python3 -m venv .venv
.venv/bin/pip install -r requirements.txt        # Windows: .venv\Scripts\pip install -r requirements.txt

Alternatively, the start.sh (Linux/macOS) and start.bat (Windows) scripts create the venv and install dependencies automatically on first run.

Configuring the default cases directory

The server looks for cases in the directory pointed to by the AUTOPSY_CASES_DIR environment variable (default: ~/AutopsyCases). A "case" is any subfolder containing autopsy.db. You can set it in three ways, in order of precedence:

1. As an argument to the start script: ./start.sh /path/to/cases

2. As an environment variable in your shell: export AUTOPSY_CASES_DIR=/path/to/cases

3. In the env block of cline_mcp_settings.json (recommended for use with Cline — see below)

You can always open a case outside the default directory by passing its full path to the set_active_case tool, or pass an alternative directory to list_cases.

PostgreSQL backend (multi-user cases)

For multi-user cases set AUTOPSY_DB_BACKEND=postgresql together with AUTOPSY_PG_HOST, AUTOPSY_PG_PORT, AUTOPSY_PG_USER, AUTOPSY_PG_PASSWORD, and install the driver: pip install psycopg2-binary. In this mode set_active_case accepts the database name of the case (visible in Autopsy under Case → Case Properties). The session is opened with default_transaction_read_only=on.

Connecting to Cline

In VS Code open: Cline icon → MCP Servers → Configure MCP Servers (the cline_mcp_settings.json file) and paste the content of the cline_mcp_settings.json included in this project, adjusting the two paths:

• args: absolute path to server.py (use the venv's Python as command if you prefer: .../autopsy-mcp/.venv/bin/python or ...\\.venv\\Scripts\\python.exe)

• env.AUTOPSY_CASES_DIR: your cases directory

Cline will launch the server on stdio automatically; you don't need to keep it running yourself. autoApprove is optional and only includes pure read tools.

Exposed Tools

Typical chat flow in Cline: "List the available cases" → "Open case XYZ" → "Give me a summary" → "Search for the word 'bitcoin' in the artifacts" → "Show me the web history".

Read-only guarantees (chain of custody)

• SQLite: connection opened with the URI file:...?mode=ro. The driver rejects any INSERT/UPDATE/DELETE/DDL at the engine level.

• PostgreSQL: session with default_transaction_read_only=on + set_session(readonly=True).

• The code contains no write statements and never touches the files in the case folder; no tool accepts arbitrary SQL from the LLM — all queries are predefined and parameterized.

Note: for a repeatable examination it remains good practice to work on a copy of the case, and not on a case while Autopsy is running an ingest (the DB may be temporarily locked; in that situation the server returns a descriptive error and you can simply retry).

Error handling

All errors are returned as JSON {"error": "..."} with hints that enable LLM self-correction: for example, a non-existent artifact type returns the list of types available in the case, and a no such table error includes the list of tables actually present (useful across different Autopsy schema versions).

Quick test without Cline

export AUTOPSY_CASES_DIR=/path/to/cases
.venv/bin/python -c "import server; print(server.list_cases())"

Automated tests

The project ships with a pytest suite (tests/) that verifies: all 7 tools against a realistic synthetic case, the self-explanatory error messages, the driver-level rejection of INSERT/UPDATE/DELETE/DDL, the invariance of the SHA-256 hash of autopsy.db after running all the tools (chain of custody), and a real MCP session over stdio (the same protocol used by Cline).

pip install pytest pytest-asyncio
pytest -v

For a manual try without a real case, generate the demo case:

python tests/make_fixture.py ~/AutopsyCases/DemoCase

A GitHub Actions workflow is also included (.github/workflows/tests.yml) that runs the suite on Linux and Windows, Python 3.10 and 3.12, on every push.

Author: th0r10293847 — Copyright (c) 2026, released under the MIT License.