Octopus Energy (octopus-mcp)

Name: Octopus Energy (octopus-mcp)
Author: mattoddie

by mattoddieversion 0.3.1i★ –iRuns on your computer

Registry nameio.github.mattoddie/octopus-mcp

Install

Overview

Description from the maker (original English)

Octopus Energy usage and costs, tariffs, Agile prices, bills, EV charging and Saving Sessions

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
UsageiNot measured yet★ –

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: Other
You need to fill in: OCTOPUS_API_KEY

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).
You fill in yourself: MCP_TRANSPORT, OCTOPUS_API_KEY, OCTOPUS_ACCOUNT, OCTOPUS_ALLOW_WRITES, OCTOPUS_TOOLSETS, OCTOPUS_AUDIT_LOG

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

DockerDocker installed

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Download the maker’s .mcpb file

The link goes to the maker’s own file; we do not host or repackage it. Open the file and Claude Desktop installs it.

Run this in your terminal

claude mcp add octopus --env MCP_TRANSPORT=your-value --env OCTOPUS_API_KEY=your-value --env OCTOPUS_ACCOUNT=your-value --env OCTOPUS_ALLOW_WRITES=your-value --env OCTOPUS_TOOLSETS=your-value --env OCTOPUS_AUDIT_LOG=your-value -- docker run -i --rm -e MCP_TRANSPORT -e OCTOPUS_API_KEY -e OCTOPUS_ACCOUNT -e OCTOPUS_ALLOW_WRITES -e OCTOPUS_TOOLSETS -e OCTOPUS_AUDIT_LOG ghcr.io/mattoddie/octopus-mcp:0.3.1

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "octopus": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "MCP_TRANSPORT",
        "-e",
        "OCTOPUS_API_KEY",
        "-e",
        "OCTOPUS_ACCOUNT",
        "-e",
        "OCTOPUS_ALLOW_WRITES",
        "-e",
        "OCTOPUS_TOOLSETS",
        "-e",
        "OCTOPUS_AUDIT_LOG",
        "ghcr.io/mattoddie/octopus-mcp:0.3.1"
      ],
      "env": {
        "MCP_TRANSPORT": "your-value",
        "OCTOPUS_API_KEY": "your-value",
        "OCTOPUS_ACCOUNT": "your-value",
        "OCTOPUS_ALLOW_WRITES": "your-value",
        "OCTOPUS_TOOLSETS": "your-value",
        "OCTOPUS_AUDIT_LOG": "your-value"
      }
    }
  }
}

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": {
    "octopus": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "MCP_TRANSPORT",
        "-e",
        "OCTOPUS_API_KEY",
        "-e",
        "OCTOPUS_ACCOUNT",
        "-e",
        "OCTOPUS_ALLOW_WRITES",
        "-e",
        "OCTOPUS_TOOLSETS",
        "-e",
        "OCTOPUS_AUDIT_LOG",
        "ghcr.io/mattoddie/octopus-mcp:0.3.1"
      ],
      "env": {
        "MCP_TRANSPORT": "your-value",
        "OCTOPUS_API_KEY": "your-value",
        "OCTOPUS_ACCOUNT": "your-value",
        "OCTOPUS_ALLOW_WRITES": "your-value",
        "OCTOPUS_TOOLSETS": "your-value",
        "OCTOPUS_AUDIT_LOG": "your-value"
      }
    }
  }
}

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.

Values you fill in

MCP_TRANSPORT env
The image serves HTTP by default; this runs it over stdio.
OCTOPUS_API_KEY secret required env
Your Octopus API key, from Personal details → API access in your Octopus account. It starts sk_live_.
OCTOPUS_ACCOUNT env
Your account number, like A-1234ABCD. Optional when the key can see only one account.
OCTOPUS_ALLOW_WRITES env
true lets the assistant change Intelligent Octopus charging and join Saving Sessions. false is read-only.
OCTOPUS_TOOLSETS env
Comma-separated toolsets to expose: account, consumption, tariffs, intelligent, octoplus, raw. Empty means all.
OCTOPUS_AUDIT_LOG env
stderr, or a file path, to record every change the assistant makes as a JSON line. A file needs a volume.

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account mattoddie, 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 Otheri

More stars than 0% of the other 18352 servers in this category
Published to the registry more recently than 73% of the other 18352 servers in this category
Basic checks equal to or better than 100% of the other 18352 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 Octopus Energy (octopus-mcp) 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?

You need to fill in: OCTOPUS_API_KEY

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 (0.3.1) reached the registry 16 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Docker, MCPB on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Hunter Killer

Alternatives

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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.

octopus-mcp

Talk to your energy.

An open-source Model Context Protocol server for Octopus Energy customers in the UK. It lets Claude and other AI assistants read your smart meter usage, costs, tariffs and bills, find the cheapest Agile half-hours and, if you allow it, manage Intelligent Octopus EV charging and join Saving Sessions, all from one small Docker container.

[octopus-mcp.mattoddie.dev](https://octopus-mcp.mattoddie.dev)

Quick start · Documentation · Tool reference · Contributing

[!NOTE]

octopus-mcp is an unofficial, independent community project. It is not affiliated with, endorsed by or supported by Octopus Energy. It uses the public customer APIs with your own API key.

"How much did I spend on electricity last week, and when should I run the dishwasher tonight?"

*Last week you used 58.4 kWh for £11.92, including £2.66 of standing charges, an average of 15.9p/kWh on Agile. Wednesday was the priciest day: you used 4.1 kWh between 4pm and 7pm, when prices were over 30p. Tonight the cheapest two hours are 01:30 to 03:30 at an average of 7.8p/kWh, so a 1.5 kWh dishwasher cycle would cost about 12p, against 46p if you started it now.*

Ask about your energy in plain English. The assistant picks from 22 tools to look things up and, if you allow it, make changes. Some examples:

📊 *"Give me a report on my energy use for September."*
⚡ *"What are the Agile prices for tomorrow? Any negative ones?"*
🕑 *"Find the cheapest 3 hours overnight to charge the home battery."*
🔥 *"How much gas did we use this month, in kWh?"*
🚗 *"When will the car charge tonight? Make it 90% by 7am tomorrow."*
🎁 *"Is there a Saving Session coming up? Sign me up."*

Highlights

🐳 Docker-first and tiny. One image (ghcr.io/mattoddie/octopus-mcp) for linux/amd64 and linux/arm64, about 20 MB. It's a single static Go binary on a distroless base, with no shell or package manager, running as a non-root user with nothing to write. It serves Streamable HTTP for a long-running service, or stdio for docker run -i. You can also run the binary on its own, and for Claude Desktop there's a one-click extension bundle (.mcpb) that needs no Docker.
💷 Real costs, half-hour by half-hour. Consumption is priced with the actual unit rate for every half-hour from the tariff you were on at the time, plus standing charges, so Agile, Go, Intelligent Go, Cosy, Flux and Tracker are costed properly.
🕑 Cheapest-time finder. Finds the cheapest continuous block for a job, runner-up times and the cheapest half-hours, and says what it'll cost against running it now.
🔥 Honest about units. SMETS2 gas meters report m³. octopus-mcp knows which your meter uses, converts with the standard formula, and tells you what it assumed.
🛡️ Safe by default. The server is read-only unless you turn on writes. Tools that aren't allowed aren't registered at all, and the raw GraphQL tool can't run mutations without writes, or ever touch tokens or API keys.
🔑 Simple, secret-safe auth. Just your Octopus API key: REST requests use it directly, and GraphQL gets short-lived Kraken tokens that are renewed automatically and kept in memory. Neither the key nor tokens ever appear in output or logs.
🎛️ Tunable. Expose only the toolsets you need, which keeps the model's context small and focused.
🧪 Tested. The test suite runs against a mock Octopus REST API and GraphQL APIs on every build.

Quick start

You need Docker, an Octopus Energy account (with a smart meter for usage data) and an MCP client such as Claude Code.

1. Get your API key from [Personal details → API access](https://octopus.energy/dashboard/new/accounts/personal-details/api-access) in your Octopus account. Note your account number (A-1234ABCD) too.

2. Set up and start the server.

mkdir octopus-mcp && cd octopus-mcp

curl -fsSLO https://raw.githubusercontent.com/mattoddie/octopus-mcp/main/compose.yaml curl -fsSL https://raw.githubusercontent.com/mattoddie/octopus-mcp/main/example.env -o .env

Edit .env: set OCTOPUS_API_KEY, OCTOPUS_ACCOUNT

and a random MCP_AUTH_TOKEN (e.g. `openssl rand -hex 32`)

docker compose up -d docker compose exec octopus-mcp /octopus-mcp status # checks the API key

3. Connect your assistant.

claude mcp add --transport http octopus http://<docker-host>:8080/mcp \

--header "Authorization: Bearer "

Now ask *"What tariff am I on, and what's my electricity price right now?"* in Claude Code.

Using Claude Desktop on a Mac or Windows PC? You don't need Docker at all. Download the .mcpb bundle for your computer from the latest release, open it, and enter your API key in the settings. See Claude Desktop.

Using VS Code, Cursor or Codex? See Connecting MCP clients. Prefer not to run a service? Use stdio mode with docker run -i or the local binary.

octopus-mcp is listed in the MCP Registry as io.github.mattoddie/octopus-mcp, so clients that install from the registry can find it there, with the Docker image and the bundles.

Turning on changes

Out of the box the assistant can look but not touch. To let it change Intelligent Octopus charging settings, start a bump charge and join Saving Sessions, add this to .env and restart:

OCTOPUS_ALLOW_WRITES=true

OCTOPUS_TOOLSETS=account,consumption,tariffs,intelligent,octoplus # optional: expose fewer tools

Octopus API keys can't be limited to read-only, so this switch, enforced by octopus-mcp, is what keeps the assistant read-only. Read Security before turning it on. To keep a record of every change the assistant makes, set OCTOPUS_AUDIT_LOG to a file path (see Audit log).

What it can do

Toolset	What's covered
`account`	The account overview (properties, MPAN/MPRN, meter serials, smart meter device IDs, current tariffs), balance, bills and transactions
`consumption`	Smart meter usage for electricity import and export and gas, by half-hour, hour, day, week or month, with cost estimates; live demand from a Home Mini
`tariffs`	Products on sale, prices by region, half-hourly unit rates (Agile, Go and more), standing charges, the cheapest times to use electricity, region by postcode. No account needed
`intelligent`	Intelligent Octopus cars and chargers: status, schedule, planned and completed charging slots; with writes, target and ready-by time, bump charge, smart control
`octoplus`	Octoplus points, Saving Sessions with rewards and results; with writes, joining a session
`raw`	Escape hatches: any GraphQL query (mutations only with writes) and any REST GET

See the [tool reference](docs/tools.md) for every tool and argument. Ready-made prompts like energy_report, plan_cheap_usage and compare_tariffs chain the tools together for common jobs.

Documentation

The docs are also published at [octopus-mcp.mattoddie.dev/docs](https://octopus-mcp.mattoddie.dev/docs/), with search.


🚀 Getting started	Step-by-step setup, from API key to first question
🔌 Connecting MCP clients	Claude Code, Claude Desktop, VS Code, Cursor, Codex, stdio mode
⚙️ Configuration	Every environment variable, how authentication works, Docker secrets, toolsets
🐳 Deployment	Compose, image tags, upgrades, TLS reverse proxy, hardening, running without Docker
💬 Using octopus-mcp	Example conversations, prompts, units, cost estimates, gas in m³, EV charging, Saving Sessions
🧰 Tool reference	Every tool and prompt, generated from the code
🛡️ Security	Threat model, the API key, safe write setups
📡 Compatibility	The Octopus APIs, meters and tariffs, and known gaps
🩹 Troubleshooting	Common errors and how to fix them
🛠️ Development	Architecture, adding a tool, testing

Contributing

Contributions are very welcome, whether that's bug reports, docs or new tools. Read the contributing guide to get started, and please follow the code of conduct. To report a vulnerability, see the security policy. Please don't open a public issue for one.

License

*octopus-mcp is an independent community project. It is not affiliated with, endorsed by or sponsored by Octopus Energy Ltd or Kraken Technologies Ltd. "Octopus Energy", "Agile Octopus", "Intelligent Octopus", "Octoplus" and related names are trademarks of their owners and are used here only to describe what the software works with.*

Octopus Energy (octopus-mcp)

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Hunter Killer

README from the maker

octopus-mcp

Highlights

Quick start

Edit .env: set OCTOPUS_API_KEY, OCTOPUS_ACCOUNT

and a random MCP_AUTH_TOKEN (e.g. openssl rand -hex 32)

Turning on changes

What it can do

Documentation

Contributing

License

and a random MCP_AUTH_TOKEN (e.g. `openssl rand -hex 32`)