Compare your electricity and gas rates in Spain

Camby is a remote MCP server (MCP App) that helps people in Spain understand their electricity and gas contracts, compare tariffs, and find out if they are overpaying. Users can upload an energy bill or answer a few quick questions to get a personalized rate comparison and see their potential savings, all from within the chat.

Setup

Camby is a remotely hosted MCP server. No installation, account, or authentication is required.

1. Open your MCP client (Claude.ai, Claude Desktop, or another MCP-compatible client) and go to the connectors / custom MCP server settings.
2. Add a new remote MCP server with the URL: https://camby-88s0bhiog-waniwani-managed.vercel.app/mcp
3. Select authentication type "None".
4. Start a conversation, e.g. "Find cheaper electricity tariffs for me." Camby will show an upload widget and guide you from there.

Transport: Streamable HTTP. Authentication: none. Geographic coverage: Spain only.

Example prompts

• "Find cheaper electricity tariffs for me."
• "I want to switch my gas provider."
• "I'm moving home and need to switch my energy provider — can you also help me change the contract holder?"
• "My electricity bill seems high — can you explain it and tell me if there is a better tariff for me?"

Troubleshooting

The connector does not appear or fails to connect.

Confirm the server URL is exactly https://camby-88s0bhiog-waniwani-managed.vercel.app/mcp and that the authentication type is set to "None". The server requires no credentials.

My bill could not be read.

Make sure the file is a single, complete bill in PDF, JPG, or PNG format, sharp and legible without glare or cropped edges. You can also continue without a bill and answer a few household questions instead.

I don't have a bill to upload.

In the upload widget choose "Continue without a bill", or tell Camby in the chat that you would rather not upload one. It will ask a few quick questions (household size, heating type, last bill amount, postal code) and compare from there.

No results / no savings shown.

Camby covers electricity and gas tariffs in Spain only. Make sure the supply point is in Spain and that the household details provided are accurate.

Tools

• camby_rate_comparison (Camby)Main flow. Guides the user step by step through comparing electricity and gas tariffs — from uploading a bill (or answering household questions) to showing potential savings and the full comparison.
• show_upload_cardRenders the interactive widget where the user can upload an energy bill (PDF/JPG/PNG) or choose to continue without one.
• show_savings_teaserRead-only widget that shows how much the user could potentially save before they share contact details.
• show_tariff_comparisonRead-only widget that displays the full tariff comparison against the user's current tariff, including the savings for each option.
• receive_upload_dataInternal tool. Receives the comparison result produced by the upload widget and stores it for the active session.

Support & legal

Camby covers electricity and gas tariffs in Spain only.