Filter the list of supported mime types for media sideloading.
jetpack_supported_media_sideload_types
jetpack_supported_media_sideload_types-
filter -
filter jetpack_options_whitelistFilter the list of options that are manageable via the JSON API.
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filter rest_api_thumbnail_sizesFilter the thumbnail sizes available for each attachment ID.
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action wpcom_json_api_optionsFires before the page output. Can be used to specify custom header options.
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filter wpcom_json_api_restricted_blog_idsFilters all REST API access and return a 403 unauthorized response for all Restricted blog IDs.
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filter wpcom_json_api_user_is_member_of_blogFilter allowing non-registered users on the site to comment.
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filter rest_api_update_site_settingsFilters the settings to be updated on the site.
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action rest_api_delete_publicize_connectionFires when a Publicize connection is deleted.
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action rest_api_inserted_postFires when a post is created via the REST API.
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action wpcom_json_api_objectsFires on each GET request to a specific endpoint.
Jetpack Developer Resources 