API registry / Bitwarden
Bitwarden
The Public API's OpenAPI document is embedded in the rendered page at bitwarden.com/help/api but is not served at a fetchable URL (candidate swagger.json paths return 404).
Apideck doesn't connect Bitwarden yet, so its tools aren't available to your agent here. It's listed for its spec.
Bitwarden publishes no machine-readable API spec.