BillTruth
Real annual cost for every Texas electricity plan, from each retailer's Electricity Facts Label.
What it can do
What data it sees
Do you need an account
No: the server works without sign-in
Real annual cost for every Texas electricity plan, from each retailer's Electricity Facts Label.
How to connect
How to connect BillTruth to Claude
The server address to paste into Claude settings:
https://billtruth.co/api/v1/mcp
- Open Claude (claude.ai or the desktop app).
- Go to Settings → Connectors.
- Click Add custom connector.
- Paste the server address copied below into Remote MCP server URL and click Add.
- In a chat, click + → Connectors and switch the new connector on.
Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.
Authorization
After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.
How to connect BillTruth to ChatGPT
The server address to paste into ChatGPT settings:
https://billtruth.co/api/v1/mcp
- Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
- Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
- Open Settings → Connectors and click Create.
- Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
- Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
- In a new chat open + → Apps/Connectors and enable the connector.
OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.
Authorization
On first use ChatGPT opens the service's sign-in window. Sign in and approve access.
How to connect BillTruth to Cursor
The server address to paste into Cursor settings:
https://billtruth.co/api/v1/mcp
Fastest: click Open in Cursor below and confirm the prompt.
Manually:
- In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
- Paste the JSON copied below into
~/.cursor/mcp.json(per project:.cursor/mcp.jsonin the repo root). - Save the file. The server appears in the MCP list; authorize it there if asked.
Authorization
If the service needs sign-in, an authorize button appears next to the server in the MCP list.
Server tool list (4)
Raw names from tools/list. Only developers need these.
| compare_plans | Rank certified Texas electricity plans for a zip by real twelve-month cost at a monthly kWh average. Returns verified_as_of with every number. |
| compare_this_house | Rank certified Texas electricity plans for a street address using a twelve-month usage profile for that meter. Prefer this over compare_plans when the user has an address. The profile is an estimate for the premise, not Smart Meter Texas interval reads. If the meter is found but has no usage history, ranks against a modeled Texas seasonal estimate at 1,000 kWh/month and says so. Never store or repeat the street. Returns verified_as_of with every number. |
| explain_plan | The receipt for one plan at a zip and usage: monthly line items, credits earned or missed, gotchas. Identify the plan by id, slug, or name. |
| check_territory | Whether a zip is in the deregulated Texas market, and which TDU serves it. |