Offload replaceable grunt work from your premium AI agent to cheap models via MCP. Keep your subscription on the main thread; billing is physically isolated. Auto-routing + savings ledger + one-command setup. MIT.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add cheaplane --env DELEGATE_API_KEY='<DELEGATE_API_KEY>' -- uvx cheaplane~/.codex/config.toml
[mcp_servers.cheaplane]
command = "uvx"
args = ["cheaplane"]
env = { DELEGATE_API_KEY = "<DELEGATE_API_KEY>" }
# codex mcp add cheaplane --env DELEGATE_API_KEY='<DELEGATE_API_KEY>' -- uvx cheaplane~/.cursor/mcp.json
{
"mcpServers": {
"cheaplane": {
"command": "uvx",
"args": [
"cheaplane"
],
"env": {
"DELEGATE_API_KEY": "<DELEGATE_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"cheaplane": {
"type": "stdio",
"command": "uvx",
"args": [
"cheaplane"
],
"env": {
"DELEGATE_API_KEY": "<DELEGATE_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"cheaplane": {
"command": "uvx",
"args": [
"cheaplane"
],
"env": {
"DELEGATE_API_KEY": "<DELEGATE_API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"cheaplane": {
"command": "uvx",
"args": [
"cheaplane"
],
"env": {
"DELEGATE_API_KEY": "<DELEGATE_API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"cheaplane": {
"command": "uvx",
"args": [
"cheaplane"
],
"env": {
"DELEGATE_API_KEY": "<DELEGATE_API_KEY>"
}
}
}
}Environment variables
DELEGATE_API_KEY
Replace the placeholders with your own credentials and keep them out of version control.