Protocol of the URL. If empty and <var>$1query</var> is set, the protocol is <kbd>http</kbd>. Leave both this and <var>$1query</var> empty to list all external links.

Protocol of the URL. If empty and <var>$1query</var> is set, the protocol is <kbd>http</kbd>. Leave both this and <var>$1query</var> empty to list all external links.

Protocol of the URL. If empty and <var>$1query</var> set, the protocol is <kbd>http</kbd>. Leave both this and <var>$1query</var> empty to list all external links.

Search string without protocol. See [[Special:LinkSearch]]. Leave empty to list all external links.

Timestamps of the revisions to restore. If both <var>$1timestamps</var> and <var>$1fileids</var> are empty, all will be restored.

Timestamps of the revisions to restore. If both <var>$1timestamps</var> and <var>$1fileids</var> are empty, all will be restored.

IDs of the file revisions to restore. If both <var>$1timestamps</var> and <var>$1fileids</var> are empty, all will be restored.

The title of the article to link. If this parameter is an empty string or both linktitle and badges are not set, the link will be removed.

Only parse the content of this section number.

When <kbd>new</kbd>, parse <var>$1text</var> and <var>$1sectiontitle</var> as if adding a new section to the page.

<kbd>new</kbd> is allowed only when specifying <var>text</var>.

Some parameter types in API requests need further explanation:
;boolean
:Boolean parameters work like HTML checkboxes: if the parameter is specified, regardless of value, it is considered true. For a false value, omit the parameter entirely.
;timestamp
:Timestamps may be specified in several formats. ISO 8601 date and time is recommended. All times are in UTC, any included timezone is ignored.
:* ISO 8601 date and time, <kbd><var>2001</var>-<var>01</var>-<var>15</var>T<var>14</var>:<var>56</var>:<var>00</var>Z</kbd> (punctuation and <kbd>Z</kbd> are optional)
:* ISO 8601 date and time with (ignored) fractional seconds, <kbd><var>2001</var>-<var>01</var>-<var>15</var>T<var>14</var>:<var>56</var>:<var>00</var>.<var>00001</var>Z</kbd> (dashes, colons, and <kbd>Z</kbd> are optional)
:* MediaWiki format, <kbd><var>2001</var><var>01</var><var>15</var><var>14</var><var>56</var><var>00</var></kbd>
:* Generic numeric format, <kbd><var>2001</var>-<var>01</var>-<var>15</var> <var>14</var>:<var>56</var>:<var>00</var></kbd> (optional timezone of <kbd>GMT</kbd>, <kbd>+<var>##</var></kbd>, or <kbd>-<var>##</var></kbd> is ignored)
:* EXIF format, <kbd><var>2001</var>:<var>01</var>:<var>15</var> <var>14</var>:<var>56</var>:<var>00</var></kbd>
:*RFC 2822 format (timezone may be omitted), <kbd><var>Mon</var>, <var>15</var> <var>Jan</var> <var>2001</var> <var>14</var>:<var>56</var>:<var>00</var></kbd>
:* RFC 850 format (timezone may be omitted), <kbd><var>Monday</var>, <var>15</var>-<var>Jan</var>-<var>2001</var> <var>14</var>:<var>56</var>:<var>00</var></kbd>
:* C ctime format, <kbd><var>Mon</var> <var>Jan</var> <var>15</var> <var>14</var>:<var>56</var>:<var>00</var> <var>2001</var></kbd>
:* Seconds since 1970-01-01T00:00:00Z as a 1 to 13 digit integer (excluding <kbd>0</kbd>)
:* The string <kbd>now</kbd>

The protocol of the URL is invalid.

The protocol of the URL is invalid.

The general procedure to use this module is:
# Fetch the fields available from <kbd>[[Special:ApiHelp/query+authmanagerinfo|action=query&meta=authmanagerinfo]]</kbd> with <kbd>amirequestsfor=$4</kbd>, and a <kbd>$5</kbd> token from <kbd>[[Special:ApiHelp/query+tokens|action=query&meta=tokens]]</kbd>.
# Present the fields to the user, and obtain their submission.
# Post to this module, supplying <var>$1returnurl</var> and any relevant fields.
# Check the <samp>status</samp> in the response.
#* If you received <samp>PASS</samp> or <samp>FAIL</samp>, you're done. The operation either succeeded or it didn't.
#* If you received <samp>UI</samp>, present the new fields to the user and obtain their submission. Then post to this module with <var>$1continue</var> and the relevant fields set, and repeat step 4.
#* If you received <samp>REDIRECT</samp>, direct the user to the <samp>redirecttarget</samp> and wait for the return to <var>$1returnurl</var>. Then post to this module with <var>$1continue</var> and any fields passed to the return URL, and repeat step 4.
#* If you received <samp>RESTART</samp>, that means the authentication worked but we don't have a linked user account. You might treat this as <samp>UI</samp> or as <samp>FAIL</samp>.

Parses content and returns parser output.

See the various prop-modules of <kbd>[[Special:ApiHelp/query|action=query]]</kbd> to get information from the current version of a page.

There are several ways to specify the text to parse:
# Specify a page or revision, using <var>$1page</var>, <var>$1pageid</var>, or <var>$1oldid</var>.
# Specify content explicitly, using <var>$1text</var>, <var>$1title</var>, and <var>$1contentmodel</var>.
# Specify only a summary to parse. <var>$1prop</var> should be given an empty value.

How to filter for redirects. If set to <kbd>nonredirects</kbd> when <var>$1redirect</var> is enabled, this is only applied to the second level.

Used as link text.

The link points to History page of the page.

This message follows:
* {{msg-mw|nuke-editby}} and {{msg-mw|comma-separator}}
* or empty string (if username is empty).
{{Identical|View changes}}

Parameters:
* $1 - a link to the page, the time and date of the version is the link anchor
* $2 - an internal or external link the user who made the version with the user name as the link anchor, or empty, or a text identifying the user without a link
* $3 - a link to the diff page of this version and the version preceeding it, or empty
* $4 - the comment, as provided by the user, which may be empty

List of types of options to reset when the <var>$1reset</var> option is set.

List of types of options to reset when the <var>$1reset</var> option is set.

The protocol o the URL is onvalid.

<div class="hlist plainlinks api-main-links">
* [[mw:API:Main_page|Documentation]]
* [[mw:API:FAQ|FAQ]]
* [https://lists.wikimedia.org/mailman/listinfo/mediawiki-api Mailing list]
* [https://lists.wikimedia.org/mailman/listinfo/mediawiki-api-announce API Announcements]
* [https://phabricator.wikimedia.org/maniphest/query/GebfyV4uCaLd/#R Bugs & requests]
</div>
<strong>Status:</strong> All features shown on this page should be working, but the API is still in active development, and may change at any time. Subscribe to [https://lists.wikimedia.org/pipermail/mediawiki-api-announce/ the mediawiki-api-announce mailing list] for notice of updates.

<strong>Erroneous requests:</strong> When erroneous requests are sent to the API, an HTTP header will be sent with the key "MediaWiki-API-Error" and then both the value of the header and the error code sent back will be set to the same value. For more information see [[mw:API:Errors_and_warnings|API: Errors and warnings]].

<strong>Testing:</strong> For ease of testing API requests, see [[Special:ApiSandbox]].

This hierarchy cannot be edited because both the hierarchy data and the category from which to draw unused pages are empty. Please ensure that at least one of these data sources is populated.

If set, a new entity will be created.
Set this to the type of the entity you want to create.
It is not allowed to have this set when <var>id</var> is also set.

The text to output instead of the list, if the list is empty. If empty, error message will rendered (such as "Page has no subpages to list"). If dash ("-"), result will be completely empty.

The text to output before the list, if the list is not empty.