Link is Hellgate's protocol-abstraction runtime and the platform's PSP and provider connectivity layer. You define a versioned API contract – a protocol – once, and bind it to one or more real providers through declarative backends. Callers invoke the protocol; Link maps each request onto the configured provider, dispatches it, maps the response back, and logs the exchange.

The result is a clean split between the API your code uses and the provider that actually fulfils it: change what's behind the API without changing the API.

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