N Northline API Unified model access for internal products
Operational API Layer

One endpoint for routing, controls, and clean delivery.

Northline API is a compact integration layer for teams that need stable access to multiple model backends without rebuilding auth, usage accounting, or streaming behavior in every client.

12 ms Median auth overhead in the request path
Streaming Server-sent event responses with consistent framing
Keys Scoped credentials for internal apps and scheduled jobs
Usage Token accounting, quotas, and request-level traceability

Built for operational simplicity

The surface area stays small on purpose: a narrow API, a predictable auth model, and enough observability to operate without ceremony.

Unified upstream routing

Normalize request handling across different providers while keeping a consistent request and response contract for internal clients.

Access control at the edge

Separate console access from API credentials, issue scoped keys, and keep operator workflows distinct from runtime traffic.

Streaming that behaves

Token streams, completion events, and usage summaries follow the same envelope so downstream consumers remain predictable.

Operational Model routing, console auth, and streaming endpoints are available.

Default paths

Keep the public surface unsurprising. Product overview on the root, docs in one place, console separately.

/

Product overview, integration summary, and status.

/docs/

Authentication, example requests, response conventions, and model operations.

/signin/

Operator sign-in page for console access and internal support workflows.