Builder Content API

REST discovered

Details

URL: https://cdn.builder.io/api/v3
Docs: https://www.builder.io/c/docs/content-api

Authentication

Builder Public API Key api_key discovered Get key ↗

?apiKey=<credential>

In Builder, open your Space settings and copy the Public API Key as described in Using the Builder API Key. This key is intended for client-side or read-only integrations and is commonly sent as the apiKey query parameter to Builder's content endpoints on cdn.builder.io.

Builder Private API Key bearer discovered Get token ↗

Authorization: Bearer <credential>

In Builder, create or copy a Private API Key for your Space as described in Using the Builder API Key. The docs note this key is server-side and grants write access; Upload API says creating one requires Developer or Admin permissions. Send it in the Authorization header for private/admin APIs.