Best Arcade.dev alternatives for AI agent integrations in 2026

TL;DR Arcade.dev is an MCP runtime that executes authenticated tool calls for AI agents. It works well for MCP-first teams that need a hosted runtime and user-scoped auth. But production AI agents usually need more than tool calls: continuous data syncs for RAG, webhook ingestion, and deep observability across API integrations. If you are evaluating alternatives, pick the one that covers your full integration surface: not just the tool calls you need today, but the data syncs, webhooks, auth, an