Open-source Node.js toolkit that lets Claude Code, Codex, and Antigravity call one another through shell commands and an MCP server, using existing CLI subscriptions without API keys.
Prices and medians update for the tier you select. Caution: thin market — treat statistics as indicative.
Ranked by how closely each one matches Claude Sidekicks's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
Thin market — few comparable priced products; treat statistics as indicative.