petromcp

Name: petromcp
Author: ameyxd

by ameyxdversion 0.8.1i★ –iRuns on your computer

Registry nameio.github.ameyxd/petromcp

Install

Overview

Description from the maker (original English)

Local-first MCP server: read LAS well logs and DLIS files from your own disk.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 54/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Docs, sheets & office work

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "petromcp": {
      "command": "uvx",
      "args": [
        "petroleum-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add petromcp -- uvx petroleum-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "petromcp": {
      "command": "uvx",
      "args": [
        "petroleum-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "petromcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "petroleum-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account ameyxd, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 3576 servers in this category
Published to the registry more recently than 20% of the other 3576 servers in this category
Basic checks equal to or better than 100% of the other 3576 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is petromcp safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.8.1) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

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Runs on your computer

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

petromcp

Read well logs with Claude without the data ever leaving your machine.

petromcp is an MCP server for petroleum data formats, built for teams whose files legally cannot be uploaded to a cloud service. No telemetry, no phone-home, no automatic updates, and a default-deny path allowlist that refuses to open anything you have not explicitly permitted. LAS today; DLIS, SEG-Y, and pump cards next.

If you can upload your data somewhere, you have more options than this. If you can't, this was written for you.

What this gives you

LLM hosts cannot read binary or semi-structured petroleum formats. petromcp wraps the established open-source parsers — lasio and dlisio today, with segyio queued for a later slice — and exposes them as MCP tools, so you can have a conversation with your data instead of copy-pasting curve values into chat.

What "local-first" means here, concretely

Not a posture. Four things you can verify in the source:

Default deny. A fresh install can read nothing. Access is granted per directory, and every tool routes through one validator that resolves symlinks before checking, so a link inside an allowed directory cannot reach outside it. There is no environment variable that widens the allowlist and no tool that changes it at runtime.
No network, declared. petromcp opens no outbound connections. All five tools ship openWorldHint: false and readOnlyHint: true, so your host can verify that claim rather than take it.
An audit trail. Every tool call is logged with a timestamp, the tool name, and the resolved path.
Bounded output. Curve reads are capped and report downsampled and original_count, so a 20,000-point log cannot silently dump into a context window.

The threat model, and what does *not* count as a vulnerability, are in SECURITY.md. Read docs/DATA_PRIVACY.md before pointing this at real data — it is authoritative, and if the code contradicts it the code is the bug.

Install

Requires Python 3.10+ and uv.

Add petromcp to your MCP host's config — no clone, no build:

"mcpServers": { "petromcp": { "command": "uvx", "args": ["petroleum-mcp", "serve"] } } }

On macOS that file is ~/Library/Application Support/Claude/claude_desktop_config.json. Restart the host afterwards. macOS notes and troubleshooting: docs/INSTALL.md.

To work on petromcp rather than just use it:

git clone https://github.com/ameyxd/petromcp cd petromcp make setup make install-claude

Configure

By default petromcp can read nothing. Tell it which directories are fair game:

uvx petroleum-mcp config init uvx petroleum-mcp config add-path ~/petroleum/wells

Or, if you want to try it without your own data, generate the synthetic sample from a checkout and allowlist that:

make generate uvx petroleum-mcp config add-path "$(pwd)/examples/sample_data"

Restart your MCP host after editing the allowlist — it is read once at startup.

Use

Open a new conversation and ask, in plain language:

What's wrong with this well log? /path/to/well.las Compare these two wells: /path/to/A.las and /path/to/B.las Convert 1500 psi to kPa.

Claude picks the right tool, reads the file through petromcp, and answers.

Worked examples, with real tool output rather than prose:

QC a well log — finds a planted density gap, a washout, and a gamma ray spike
Compare two wells — depth overlap, a missing curve, and a unit mismatch that is invisible in one file
Unit conversion
Read a DLIS file — logical files, frames, and what happens when a channel name is ambiguous

Every value in those documents is generated by calling the tools; CI fails if they drift.

Tools

Tool	What it does
`read_las_file`	Header-level summary of a LAS file
`summarize_las_curves`	Per-curve min, max, mean, stddev, gap percentage
`read_las_curve`	Depths and values for one curve, with sampling cap
`compare_well_logs`	Common curves, depth overlap, unit consistency, flags
`convert_units`	ft<->m, psi<->kPa, psi<->bar, bbl<->m3, degF<->degC, mD<->m2
`list_supported_units`	Every convertible pair with its physical quantity
`read_dlis_file`	DLIS structure: logical files, frames, index types
`list_dlis_channels`	Every DLIS channel with its frame, units, and length
`read_dlis_channel`	One DLIS channel's values, with a sampling cap
`qc_a_well_log` prompt	Walks Claude through a standard QC pass

Every tool is read-only and opens no network connection, and declares that in its MCP annotations. Full reference: docs/TOOLS_REFERENCE.md.

DLIS files hold several logging runs, each with several frames, so a channel name is unique only within a frame. read_dlis_channel refuses an ambiguous name and lists the candidates rather than guessing, because the values differ.

SEG-Y and pump card support land in subsequent releases.

Status

v0.7 ships the LAS and DLIS slices, a comparison tool, a units utility, and config-management CLI subcommands. The remaining formats are tracked in SPEC_petromcp.md. The non-goals list there is real; read it before filing feature requests.

Release history: CHANGELOG.md. Security policy and threat model: SECURITY.md.

License

MIT.

mcp-name: io.github.ameyxd/petromcp

Built by Amey Ambade. I write about AI systems in industries where the data can't leave the building, at writing.heyamey.com.

petromcp

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

petromcp

What this gives you

What "local-first" means here, concretely

Install

Configure

Use

Tools

Status

License