Fortnox

Vendor spec exists but only as embedded Redoc state, with no stable raw URL. Third-party copies exist (rsystem-se/fortnox_openapi, archived; api-evangelist subsets), and the vendor spec makes them unnecessary.

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Fortnox API

Verified

Format: OpenAPI 3.0 · 3.0.3
Source: Vendor
URL: https://api.fortnox.se/apidocs
Server: https://api.fortnox.se
Operations: 451
Last changed: 31 Oct 2026
sha256: f268177b4f7abe2e… · 951 KB

OpenAPI 3.0.3 is embedded in the Redoc page (window.__redoc_state.spec.data, ~1 MB); the page's 'Download' link is client-side, not a raw URL. https://api.fortnox.se/apidocs/openapi.json and apps.fortnox.se/apidocs/openapi.json both 404. CI must fetch the HTML (~8 MB) and extract __redoc_state. info.version is empty. A separate Alpha/Beta spec is embedded the same way at https://apps.fortnox.se/apidocs/experimental (not counted).