Open database of US electricity tariffs, a deterministic rate engine, and an MCP server — so any app, device, or agent can answer: what will this kWh cost, and when should I charge?
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add ratebook -- uvx ratebook-mcp~/.codex/config.toml
[mcp_servers.ratebook]
command = "uvx"
args = ["ratebook-mcp"]
# codex mcp add ratebook -- uvx ratebook-mcp~/.cursor/mcp.json
{
"mcpServers": {
"ratebook": {
"command": "uvx",
"args": [
"ratebook-mcp"
]
}
}
}.vscode/mcp.json
{
"servers": {
"ratebook": {
"type": "stdio",
"command": "uvx",
"args": [
"ratebook-mcp"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"ratebook": {
"command": "uvx",
"args": [
"ratebook-mcp"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"ratebook": {
"command": "uvx",
"args": [
"ratebook-mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"ratebook": {
"command": "uvx",
"args": [
"ratebook-mcp"
]
}
}
}