wtf is network-gateway-service?

The Subquery Network Auth Service acts as a gateway between people who need blockchain data and the servers that index and organize it. Instead of wrangling direct connections to data providers, users get a single entry point that handles authentication, checks what they're entitled to, and routes their queries accordingly. At a high level, the service runs as a local server you configure with a private key, a consumer address, a chain ID, and a network selection (testnet or a production environment called Kepler). Once running, it exposes a set of API endpoints. Some let you retrieve metadata about service agreements, check whether a specific blockchain's data is available, or list all active agreements tied to a particular chain. It also ships with Swagger documentation and a stats dashboard so you can inspect and monitor what's happening. The people who'd reach for this are teams building apps that rely on indexed blockchain data, say, a dashboard pulling transaction history from a specific chain, or an analytics tool querying smart contract events. If you've negotiated a service agreement or a pay-as-you-go plan with indexers, this service is the plumbing that makes those agreements actionable. You prove who you are, the service validates your plan, and your queries flow through to the right indexer without you managing that relationship manually. The README doesn't go into much detail on tradeoffs or architectural decisions beyond an architecture diagram. What's visible is a fairly straightforward TypeScript service with environment-based configuration, a few legacy API endpoints, and built-in observability through Swagger and Swagger-Stats. The reliance on VPN access for dev and production stats dashboards suggests it's designed for internal or controlled deployment rather than public exposure out of the box.