The Kling 3.0 series models API is now fully available Learn More Get Started Overview Quick Start Changelog API Reference General Info Rate Limits Callback Schema Video Generation Models Video Omni Text to Video Image to Video Reference to Video Motion Control Multi-elements to video Extend Video Lip Sync Avatar Text to Audio Video to Audio Text to Speech Voice Clone Image Recognize Element Effects Effect Templates NEW Video Effects Image Generation Models Image Omni Image Generation Reference to Image Extend Image AI Multi-Shot Virtual Try-On Others Query user info Pricing Billing Info Prepaid Resource Packs Protocols Privacy Policy of API Service Terms of API Service API Service Level Agreement Custom Voice Create Custom Voice POST /v1/general/custom-voices cURL Copy Collapse curl --request POST \ --url https://api-singapore.klingai.com/v1/general/custom-voices \ --header 'Authorization: Bearer ' \ --header 'Content-Type: application/json' \ --data '{ "video_id": "", "voice_url": "https://p2-kling.klingai.com/kcdn/cdn-kcdn112452/kling-qa-test/out.mp3", "voice_name": "Custom Voice", "callback_url": "" }' 200 Copy Collapse { "code": 0, // Error Codes；Specific definitions can be found in Error codes "message": "string", // Error information "request_id": "string", // Request ID, generated by the system, is used to track requests and troubleshoot problems "data": { "task_id": "string", // Task ID, generated by the system "task_info": { // Task creation parameters "external_task_id": "string" // Customer-defined task ID }, "task_status": "string", // Task status, Enum values：submitted、processing、succeed、failed "created_at": 1722769557708, // Task creation time, Unix timestamp, unit ms "updated_at": 1722769557708 // Task update time, Unix timestamp, unit ms } } Request Header Content-Type string Required Default to application/json Data Exchange Format Authorization string Required Authentication information, refer to API authentication Request Body voice_name string Required Voice Name The maximum length of text content is 20 characters The voices that are no longer used after creation can be deleted through the API voice_url string Optional The URL of voice data file Supports .mp3 / .wav audio file and .mp4 / .mov video file The voice needs to be clean and free of noise, with only one type of human voice present, with a duration of no less than 5 seconds and no longer than 30 seconds video_id string Optional Generated video ID, which can provide audio materials by referencing historical works Only videos that meet the following conditions can be used to customize voice: The video is generated on V2.6 model and the value of sound parameter is on The video is generated through Avatar API The video is generated through Lip-Sync API The voice needs to be clean and free of noise, with only one type of human voice present, with a duration of no less than 5 seconds and no longer than 30 seconds callback_url string Optional The callback notification address for the result of this task. If configured, the server will actively notify when the task status changes. For specific message schema, see Callback Protocol external_task_id string Optional Customized Task ID Will not overwrite system-generated task ID, but supports querying task by this ID Please note that the customized task ID must be unique within a single user account. Query Custom Voice (Single) GET /v1/general/custom-voices/{id} cURL Copy Collapse curl --request GET \ --url 'https://api-singapore.klingai.com/v1/general/custom-voices/{id}' \ --header 'Authorization: Bearer ' 200 Copy Collapse { "code": 0, // Error codes；Specific definitions can be found in "Error Code" "message": "string", // Error information "request_id": "string", // Request ID, generated by the system, is used to track requests and troubleshoot problems "data": { "task_id": "string", // Task ID, generated by the system "task_status": "string", // Task status, Enum values：submitted、processing、succeed、failed "task_status_msg": "string", // Task status information, displaying the failure reason when the task fails (such as triggering the content risk control of the platform, etc.) "task_info": { // Task creation parameters "external_task_id": "string" // Customer-defined task ID }, "task_result": { "voices": [ { "voice_id": "string", // Generated voice ID; globally unique "voice_name": "string", // Generated voice name "trial_url": "string", // URL for generating videos "owned_by": "kling" // Voice source, kling is the official voice library, and others are the creator's ID } ] }, "final_unit_deduction": "string", // The deduction units of task "created_at": 1722769557708, // Task creation time, Unix timestamp, unit: ms "updated_at": 1722769557708 // Task update time, Unix timestamp, unit: ms } } Request Header Content-Type string Required Default to application/json Data Exchange Format Authorization string Required Authentication information, refer to API authentication Path Parameters task_id string Required The task ID of the element creation task. Request path parameter, directly fill the value in the request path. external_task_id string Optional Customized Task ID for audio generation The external_task_id filled in when creating the task. You can choose to query by external_task_id or task_id When creating a task, you can choose to query by external_task_id or task_id. Query Custom Voice (List) GET /v1/general/custom-voices cURL Copy Collapse curl --request GET \ --url 'https://api-singapore.klingai.com/v1/general/custom-voices?pageNum=1&pageSize=30' \ --header 'Authorization: Bearer ' 200 Copy Collapse { "code": 0, // Error codes；Specific definitions can be found in "Error Code" "message": "string", // Error information "request_id": "string", // Request ID, generated by the system, is used to track requests and troubleshoot problems "data": [ { "task_id": "string", // Task ID, generated by the system "task_status": "string", // Task status, Enum values：submitted、processing、succeed、failed "task_status_msg": "string", // Task status information, displaying the failure reason when the task fails (such as triggering the content risk control of the platform, etc.) "task_info": { // Task creation parameters "external_task_id": "string" // Customer-defined task ID }, "task_result": { "voices": [ { "voice_id": "string", // Generated voice ID; globally unique "voice_name": "string", // Generated voice name "trial_url": "string", // URL for generating videos "owned_by": "kling" // Voice source, kling is the official voice library, and others are the creator's ID } ] } "final_unit_deduction": "string", // The deduction units of task "created_at": 1722769557708, // Task creation time, Unix timestamp, unit: ms "updated_at": 1722769557708, // Task update time, Unix timestamp, unit: ms } ] } Request Header Content-Type string Required Default to application/json Data Exchange Format Authorization string Required Authentication information, refer to API authentication Query Parameters pageNum int Optional Default to 1 Page number Value range: [1, 1000] pageSize int Optional Default to 30 Data volume per page Value range: [1, 1000] Query Presets Voice (List) GET /v1/general/presets-voices cURL Copy Collapse curl --request GET \ --url 'https://api-singapore.klingai.com/v1/general/presets-voices?pageNum=1&pageSize=30' \ --header 'Authorization: Bearer ' 200 Copy Collapse { "code": 0, // Error codes；Specific definitions can be found in "Error Code" "message": "string", // Error information "request_id": "string", // Request ID, generated by the system, is used to track requests and troubleshoot problems "data": [ { "task_id": "string", // Task ID, generated by the system "task_status": "string", // Task status, Enum values：submitted、processing、succeed、failed "task_status_msg": "string", // Task status information, displaying the failure reason when the task fails (such as triggering the content risk control of the platform, etc.) "created_at": 1722769557708, // Task creation time, Unix timestamp, unit: ms "updated_at": 1722769557708, // Task update time, Unix timestamp, unit: ms "task_result": { "voices": [ { "voice_id": "string", // Official voice ID; globally unique "voice_name": "string", // Official voice name "trial_url": "string", // URL for official videos "owned_by": "kling" // Voice source, kling is the official voice library, and others are the creator's ID } ] } } ] } Request Header Content-Type string Required Default to application/json Data Exchange Format Authorization string Required Authentication information, refer to API authentication Query Parameters pageNum int Optional Default to 1 Page number Value range: [1, 1000] pageSize int Optional Default to 30 Data volume per page Value range: [1, 1000] Delete Custom Voice POST /v1/general/delete-voices cURL Copy Collapse curl --request POST \ --url https://api-singapore.klingai.com/v1/general/delete-voices \ --header 'Authorization: Bearer ' \ --header 'Content-Type: application/json' \ --data '{ "voice_id": "850087542757535834" }' 200 Copy Collapse { "code": 0, // Error codes；Specific definitions can be found in "Error Code" "message": "string", // Error information "request_id": "string", // Request ID, generated by the system "data": { "task_id": "string", // Task ID, generated by the system "task_status": "string" // Task status, Enum values：submitted、processing、succeed、failed } } Request Header Content-Type string Required Default to application/json Data Exchange Format Authorization string Required Authentication information, refer to API authentication Request Body voice_id string Required The ID of the voice to be deleted, only supports deleting custom voices Previous chapter：Text to Speech Next chapter：Image Recognize Create Custom Voice Query Custom Voice (Single) Query Custom Voice (List) Query Presets Voice (List) Delete Custom Voice The Kling 3.0 Series Models API is Now Fully Available – All in One, One for All！ Models Available in This Release Kling 3.0 Motion Control, Kling Video 3.0, Kling Video 3.0 Omni, Kling Image 3.0, Kling Image 3.0 Omni Refer to Key Highlights of the Models 3.0 All-in-One: A unified model for multi-modal input and output. Most powerful consistency across the universe: Subject consistency (supports cameo, subject with voice control, i2v + subject) and text consistency. Narrative control at your fingertips: More freedom, precision, and control—up to 15 seconds long, video scene cuts, ultra-high-definition storyboards/images, custom seconds. Upgraded native audio-visual output: Supports multiple speakers and languages (with accents). Kling 3.0 Motion Control Consistent Facial Identity from any angle Complex Emotions faithfully reproduced High fidelity Restoration, Even with Face Occlusions Consistent Facial Clarity Across Dynamic Framing User Guide -> Kling Video 3.0 Compared to 2.6, expected improvements: Supports subject upload in I2V scenarios for enhanced consistency Significant improvement in multi-character referencing, especially for three-person scenarios Supports Japanese, Korean, and Spanish in addition to Chinese and English Capable of generating certain dialects and accents Better distinction and control over different types of audio (speech, sound effects, BGM) Improved text retention in I2V scenarios Supports scene transitions, with up to 6 shots and customizable storyboarding User Guide -> Kling Video 3.0 Omni Compared to O1, expected improvements: Native audio-visual synchronization Supports video subject creation Further improved consistency in reference-based tasks, especially for characters and products Combined capabilities of reference + storyboarding + audio-visual sync significantly enhance usability Supports scene transitions, with up to 6 shots Extended generation duration up to 15 seconds User Guide -> Kling Image 3.0 Highly consistent feature retention Precise response to detail modifications Accurate control over style and tone Rich imaginative capabilities User Guide -> Kling Image 3.0 Omni Enhanced narrative sense New storyboard image set generation, retaining reference image features with scene relevance Direct output of 2K/4K ultra-high-definition images Further improved detail consistency User Guide -> Thank you for your support and understanding! 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