Openei Urdb

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OpenEI Utility Rate Database (URDB) MCP

3tools
0msauth
free tier50 calls/day

Tools

urdb_search_rates

Searches NREL's Utility Rate Database for US electricity tariffs by location, utility or EIA id, with energy and demand charges.

No parameters required.

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urdb_rate_detail

Get the FULL structure of one US electricity tariff by its URDB label — every energy-charge tier and time-of-use period, the 12x24 month-by-hour period schedules for weekdays and weekends, demand char

No parameters required.

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urdb_utilities_for_location

Find which electric utilities serve a US location, with how many tariffs each has in the NREL rate database, which sectors they cover, and how many of those tariffs are still current. Answers "who is

No parameters required.

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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash
curl -X POST https://gateway.pipeworx.io/openei-urdb/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash
curl -X POST https://gateway.pipeworx.io/openei-urdb/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"urdb_search_rates","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("urdb_search_rates", {});
ask_pipeworx
// Or ask in plain English:
const answer = await px.ask("openei utility rate database (urdb) mcp");