Who it is for
Austrian households and the energy advisers, energy communities and utilities serving them.
Austrian electricity tariffs, grid fees and household consumption, calculated
Overview
Gridbert is an MCP service for the Austrian electricity market, published by Benjamin Mörzinger. Per the listing it maintains three things a language model lacks on its own: a per-household knowledge graph built from bills and load profiles, a deterministic calculation engine, and current market data covering over 300 Austrian tariffs collected daily plus grid costs for all fourteen network areas down to postal code.
The arithmetic is handled by energietools, an open source MIT-licensed library, rather than by the model, so each result arrives with a traceable calculation path. Uses named include checking and explaining an electricity bill, comparing tariffs, backtesting spot tariffs against a real load profile, analysing smart meter data through EDA, and quantifying savings. Household use is described as free, with separate organisation workspaces for energy advisers, energy communities and service providers. Twenty two tools are published.
Austrian households and the energy advisers, energy communities and utilities serving them.
The listing names twenty two tools; the endpoint returns 401 to an anonymous listing request, which fits a service keyed to one household's meter data.
Availability
Gridbert is listed in the Claude connectors directory only. Benjamin Mörzinger has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one.
Claude listing
Gridbert publishes 22 tools to Claude, deeper than 72.2% of the 1,253 Claude-listed connectors.
The median Claude-listed connector filed under Productivity publishes 12, so this one runs 10 tools above its bucket's median and ranks 133rd of 462 by tool count.
It falls in the 21-50 tools band, which holds 20% of the Claude directory.
Gridbert publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally.
Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there.
https://mcp.gridbert.at/mcp Gridbert is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality.
In the publisher's words
Gridbert ist ein MCP-Dienst für den österreichischen Energiemarkt. Er gibt Claude, was ihm fehlt: Gedächtnis (ein Wissensgraph pro Haushalt, aufgebaut aus Rechnungen und Lastgängen), ein deterministisches Rechenwerk und aktuelle Daten - über 300 österreichische Stromtarife, täglich erhoben, plus Netzkosten aller 14 Netzbereiche bis zur Postleitzahl. Damit kann Claude Stromrechnungen prüfen und erklären, Tarife vergleichen, Spot-Tarife auf dem eigenen Lastgang backtesten, Smart-Meter-Daten über EDA analysieren und Sparpotenziale beziffern. Gerechnet wird nicht vom Sprachmodell, sondern von energietools (Open Source, MIT) - jedes Ergebnis kommt mit nachvollziehbarem Rechenweg. Für Haushalte kostenlos. Für Energieberater, Energiegemeinschaften und Energiedienstleister gibt es Organisationslösungen mit eigenen Arbeitsbereichen.
Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it.
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This is an independent catalogue entry compiled by Node8 from Gridbert's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Benjamin Mörzinger, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.