Compera MCP Server

Live Swedish price & service comparison as callable tools for AI agents.

Compera (compera.se) is an independent Swedish comparison service for both products and services. This MCP server exposes Compera's daily-fresh data as tools so AI assistants (Claude, ChatGPT, Perplexity, Cursor, …) can answer "cheapest/best X in Sweden" in real time — and cite the source.

No API key, no install, no local process. It's a remote server: point your client at one URL.

Endpoint: https://compera.se/mcp — Streamable HTTP, JSON-RPC 2.0
Official MCP Registry: io.github.fredxhansson-cmyk/compera
Docs / landing: https://compera.se/for-ai
Machine-readable map: https://compera.se/llms.txt
License: MIT

Why use it

Grounded, current answers — prices and rates refresh daily; the model stops guessing stale numbers.
Swedish market coverage — electronics & products, plus broadband, mobile, electricity, insurance and loans.
Citeable — every response ends with a Source: line back to compera.se, so answers are attributable.
Zero setup — remote server; add one URL and the tools appear.

Typical prompts it unlocks: "What's the cheapest [product] in Sweden right now?", "Compare broadband providers", "Today's electricity price in SE3", "Lowest consumer-loan rate available".

Tools

Tool	Parameters	Description
`search_products`	`query` (string)	Search the catalog for the cheapest price + number of stores.
`product_offers`	`query` (string)	All store prices for a single product (cheapest / in-stock first).
`compare_category`	`category` (string)	Top providers in a Swedish service category (broadband, mobile, electricity, insurance, loans).
`compare_pair`	`category`, `a`, `b` (strings)	Head-to-head comparison of two providers in a category.
`electricity_price`	`zone` (SE1–SE4, optional)	Daily Swedish electricity spot price per zone (Nord Pool).
`lowest_loan_rate`	—	Lowest effective consumer-loan rate in Sweden right now.
`price_spread`	`query` (string)	How much the same product's price differs between Swedish stores.
`deals_now`	`category` (optional)	Current deals / discounts across categories.
`list_categories`	—	List all comparable service categories.

Every tool returns human-readable text ending with a source line back to compera.se.

Connect

Claude / ChatGPT (custom connector): add a connector with the URL

https://compera.se/mcp

Cursor / VS Code (mcp.json):

json

{
  "mcpServers": {
    "compera": {
      "url": "https://compera.se/mcp"
    }
  }
}

MCP Inspector:

bash

npx @modelcontextprotocol/inspector
# connect to https://compera.se/mcp

Examples (raw JSON-RPC)

List available tools:

bash

curl -s https://compera.se/mcp \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Today's electricity price (zone SE3):

bash

curl -s https://compera.se/mcp \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"electricity_price","arguments":{"zone":"SE3"}}}'

Cheapest product match:

bash

curl -s https://compera.se/mcp \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"search_products","arguments":{"query":"airpods pro"}}}'

Responses are MCP content blocks of type text, e.g.:

Billigast: AirPods Pro (2nd gen) — 2 490 kr hos 4 butiker.
Source: https://compera.se/produkter?q=airpods+pro

Data & neutrality

Data is refreshed daily and presented neutrally with source attribution. Compera is an independent comparison service (not owned by any listed provider). Rankings are editorial/quality-led; commercial relationships never override the data shown. Prices and rates are indicative — always confirm the final price with the merchant.

Built by Compera · MIT licensed · Endpoint: https://compera.se/mcp