Nango

Nango belongs in the database because customer-facing integrations are one of the most painful parts of product development, especially once OAuth, sync reliability, proxy requests, and API changes start to pile up. The official site positions Nango as integration infrastructure covering API auth, proxying, syncs, functions, logs, webhooks, and even LLM tool calling and MCP access. That makes it a serious backend platform for product teams rather than just another low-code automation tool.

It also deserves inclusion because the pricing is unusually detailed and transparent. The official pricing page clearly shows Free at $0, Starter from $50/month, Growth from $500/month, and Enterprise as custom pricing. It then breaks down the main billable units such as connections, proxy requests, function compute, function runs, logs, sync storage, and webhooks. That level of unit clarity is exactly the kind of pricing honesty a premium directory should reward.