Switchje open data

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

Should I use this

Quality & Safety

B
Description quality
94%
Schema completeness
53%
Naming quality
80%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Findings (1)

  • LOWTool 'methodology' description lacks action verbin methodology

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~507Tokens (tool definitions)
~529 BTypical response size
Minimal attention impact (0.40% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

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

Remote endpoints

https://switchje.nl/mcpstreamable-http

What it can do

Tool inventory

Tools (5)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
⚪cheapest_today(profile)

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'.

Input Schema

{
  "type": "object",
  "properties": {
    "profile": {
      "default": "median",
      "title": "Profile",
      "type": "string"
    }
  },
  "title": "cheapest_todayArguments"
}
⚪cheapest_history(profile, from_date, to_date)

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.

Input Schema

{
  "type": "object",
  "properties": {
    "profile": {
      "default": "median",
      "title": "Profile",
      "type": "string"
    },
    "from_date": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "From Date"
    },
    "to_date": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "To Date"
    }
  },
  "title": "cheapest_historyArguments"
}
⚪market_summary(date, profile)

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.

Input Schema

{
  "type": "object",
  "properties": {
    "date": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Date"
    },
    "profile": {
      "default": "median",
      "title": "Profile",
      "type": "string"
    }
  },
  "title": "market_summaryArguments"
}
⚪offer_lifecycle(supplier)

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').

Input Schema

{
  "type": "object",
  "properties": {
    "supplier": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Supplier"
    }
  },
  "title": "offer_lifecycleArguments"
}
⚪methodology

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

Input Schema

{
  "type": "object",
  "properties": {},
  "title": "methodologyArguments"
}

Community

Rate this Server

Evidence

Recent observations

verifiedversion not recorded5 tools