| parameter | value | type | default / required* | notes |
|---|
| nkey | | token | * | Session key or token. Automatically assigned (only if optional) or obtained via acct_login/acct_token call. |
| acct | | string | | Account e-mail. If left empty, then the request is on behalf of the account that is logged in (nkey). |
| name | | string (60) | | Client name (first last). |
| email | | string (80) | | Account email address, and account credentials. |
| passwd | | string | | Account password. Please use a minimum of five characters including at least one digit or non-alphanumeric character.. |
| apipasswd | | string | | Main API password. Please use a minimum of five characters including at least one digit or non-alphanumeric character.. |
| lang | | string (6) | | Language, two chararters, following ISO 639. |
| timezone | | string | | Timezone name, example: Europe/Amsterdam. |
| company | | string (60) | | Company name. |
| address | | string (60) | | Address. |
| zip | | string (10) | | ZIP or postal code. |
| city | | string (40) | | City. |
| state | | string (40) | | State or province. |
| country | | char (2) | | Country, following ISO 3166. Examples: us, gb, nl. |
| telnr | | string (256) | | Telephone number, including "+" and international prefix. |
| faxnr | | string (15) | | Facsimile number, including "+" and international prefix. |
| callback | | string | | Callback function for JSONP style calls. When this parameter is given, the result will be JSON instead of XML. |
| view | | enum (xml, json) | xml | Specifies the desirable representation of the output (XML or JSON). HTTP Accept header can be used and has precedence. |