Switchje open data

nl.switchjePublished by switchje.nlOfficial publisherv1.0.0Updated Oct 25, 2026

Dutch energy market, open data computed nightly: cheapest contracts, market levels, offer lifecycle

VerifiedStreamable HTTPWeb executableFinanceData & Analytics

Overview

AI-generated overview

A remote MCP server exposing nightly-computed open data on the Dutch energy market: cheapest contracts, market levels and offer lifecycle.

What you can do
Find the five cheapest energy offers for a standard household profile on the latest day with data, with a cost split and fetch times, or per day across a date range with history tools. Get market aggregates for a day: offers by contract type, median yearly cost, price spread, cashback offers, and offers added or withdrawn. Track when each offer was first seen on sale and when it was withdrawn, optionally filtered by supplier code. Read the ranking methodology, standard profiles, licence and attribution guidance.
When to use it
Useful when comparing Dutch household energy contracts, tracking how offers appear and disappear over time, or answering questions about market price levels and spreads without building a scraper yourself.
Requirements
A remote streamable HTTP endpoint at switchje.nl; no packages, environment variables or headers are declared, and no authentication is declared. Network access to the endpoint is needed.
Before you install
Data covers the Dutch market only and is computed nightly, so it may lag same-day changes; a missing day means no valid run. Check the methodology tool for licence and attribution terms before republishing figures.

Installation

In SourceWeft

  1. Open Switchje open data in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/nl.switchje%2Fopen-data/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "switchje-open-data": {
      "type": "http",
      "url": "https://switchje.nl/mcp"
    }
  }
}

Tools

5

cheapest_today

The five cheapest energy offers in the Netherlands for a standard household profile on the most recent day with data, with a coarse cost split (supply, taxes and levies, network, feed-in, one-off) and the time each price was fetched. profile: one of methodology()'s standard profiles, e.g. 'median', 'solar', 'heatpump', 'ev'.

Parametersprofile

cheapest_history

The five cheapest offers per day for a standard profile over a date range (ISO dates, inclusive; both optional). A missing day had no valid run.

Parametersprofileto_datefrom_date

market_summary

Market aggregates for one day (ISO date; default the most recent) and profile: offers priced per contract type, median yearly cost, spread between cheapest and priciest, offers with cashback, offers added and withdrawn that day.

Parametersdateprofile

offer_lifecycle

When each offer was first seen on sale and when it was withdrawn (empty = still on sale), across every supplier we track; optionally filtered by supplier code (e.g. 'eneco').

Parameterssupplier

methodology

How Switchje ranks offers, the standard profiles spelled out, the licence and how to attribute.

Takes no parameters.

Version history

1
  1. v1.0.0LatestOct 16, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.