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Harp exposes a small content API for public consumers, primarily the marketing site. “Public” means it needs no user session, not that it’s unauthenticated: every request must carry an API key.

Authentication

Requests send an X-API-Key header that must match the PUBLIC_API_KEY environment variable on the Go service. Treat it as a shared secret: call these endpoints from servers only, never from browser code.

Endpoints

All responses use Harp’s standard envelope:
logo_data is raw base64, not a URL. Pair it with logo_content_type to build a data URI. Because logos are inlined, the sponsors response grows with every sponsor; cache accordingly on the consumer side.

Example

The full private API (applications, reviews, scans, and everything else the portal uses) is documented via Swagger in the harp repo and requires an authenticated user session. It is not part of this public contract.