## Basic tool info Model name: klingai/kling v4 Model description: Kling V4 by KlingAI generates 5–30s videos from a written prompt or keyframe images. Create controlled motion and camera moves in 720p or 1080p. Model cover: https://cdn.wiro.ai/uploads/models/klingai-kling-v4-cover.mp4 Model categories: - tool - klingai - partner - text-to-video - image-to-video - nogpu-pipeline - quick-showcase - hero-showcase Run Task Endpoint (POST): https://api.wiro.ai/v1/Run/klingai/kling-v4 Get Task Detail Endpoint (POST): https://api.wiro.ai/v1/Task/Detail ## Model Inputs: - name: inputImage label: First Frame help: Optional. First frame for image-to-video. Leave empty for text-to-video. Referenced in the prompt as @image_1. type: combinefileinput default: kling-v4-sampleinput-1.webp - name: prompt label: prompt help: Optional. Required for text-to-video. The prompt to generate the video. Describe audio, dialogue and shots inside the prompt. Keyframes are referenced in order as @image_1, @image_2, ... (first frame, middle frames, last frame). type: textarea default: She takes a big bite of the taco, laughs with her mouth full and gives a thumbs up, while the camera slowly pulls back to reveal the busy night market with glowing string lights and rising steam. Natural market ambience and a sizzling grill. - name: duration label: duration help: Required. Total duration of the generated video in seconds, from 5 to 30. type: select default: 5 options: - value: "5" label: 5 - value: "6" label: 6 - value: "7" label: 7 - value: "8" label: 8 - value: "9" label: 9 - value: "10" label: 10 - value: "11" label: 11 - value: "12" label: 12 - value: "13" label: 13 - value: "14" label: 14 - value: "15" label: 15 - value: "16" label: 16 - value: "17" label: 17 - value: "18" label: 18 - value: "19" label: 19 - value: "20" label: 20 - value: "21" label: 21 - value: "22" label: 22 - value: "23" label: 23 - value: "24" label: 24 - value: "25" label: 25 - value: "26" label: 26 - value: "27" label: 27 - value: "28" label: 28 - value: "29" label: 29 - value: "30" label: 30 - name: resolution label: resolution help: Required. Output video resolution. type: select default: 720p options: - value: "720p" label: 720p - value: "1080p" label: 1080p - name: inputImageMiddle label: Middle Frames help: Optional. Middle keyframes in timeline order. Requires a first frame. Up to 10 images in total across first, middle and last frames. type: combinefileinput default: - name: inputImageLast label: Last Frame help: Optional. Last keyframe. Requires a first frame. type: combinefileinput default: - name: ratio label: ratio help: Optional. Aspect ratio. Only applies to text-to-video; image-to-video derives it from the keyframes. type: select default: 16:9 options: - value: "21:9" label: 21:9 - value: "16:9" label: 16:9 - value: "9:16" label: 9:16 - value: "1:1" label: 1:1 - name: watermark label: watermark help: Optional. Whether to add a watermark to the result. type: select default: false options: - value: "false" label: false - value: "true" label: true ## Integration Header Prepare ```bash # Sign up Wiro dashboard and create project export YOUR_API_KEY="{{useSelectedProjectAPIKey}}"; export YOUR_API_SECRET="XXXXXXXXX"; # unix time or any random integer value export NONCE=$(date +%s); # hmac-SHA256 (YOUR_API_SECRET+Nonce) with YOUR_API_KEY export SIGNATURE="$(echo -n "${YOUR_API_SECRET}${NONCE}" | openssl dgst -sha256 -hmac "${YOUR_API_KEY}" | awk '{print $NF}')"; ``` ## Run Command - Make HTTP Post Request ```bash curl -X POST "https://api.wiro.ai/v1/Run/klingai/kling-v4" -H "Content-Type: multipart/form-data" -H "x-api-key: ${YOUR_API_KEY}" -H "x-nonce: ${NONCE}" -H "x-signature: ${SIGNATURE}" -d '{ "inputImage": "kling-v4-sampleinput-1.webp", "prompt": "She takes a big bite of the taco, laughs with her mouth full and gives a thumbs up, while the camera slowly pulls back to reveal the busy night market with glowing string lights and rising steam. Natural market ambience and a sizzling grill.", "duration": "5", "resolution": "720p", "inputImageMiddle": [], "inputImageLast": [], "ratio": "16:9", "watermark": "false", "callbackUrl": "You can provide a callback URL; Wiro will send a POST request to it when the task is completed." }'; ``` ## Run Command - Response ```json { "errors": [], "taskid": "2221", "socketaccesstoken": "eDcCm5yyUfIvMFspTwww49OUfgXkQt", "result": true } ``` ## Get Task Detail - Make HTTP Post Request with Task ID ```bash curl -X POST "https://api.wiro.ai/v1/Task/Detail" -H "Content-Type: multipart/form-data" -H "x-api-key: ${YOUR_API_KEY}" -H "x-nonce: ${NONCE}" -H "x-signature: ${SIGNATURE}" -d '{ "taskid": "2221" }'; ``` ## Get Task Detail - Make HTTP Post Request with Socket Access Token ```bash curl -X POST "https://api.wiro.ai/v1/Task/Detail" -H "Content-Type: multipart/form-data" -H "x-api-key: ${YOUR_API_KEY}" -H "x-nonce: ${NONCE}" -H "x-signature: ${SIGNATURE}" -d '{ "tasktoken": "eDcCm5yyUfIvMFspTwww49OUfgXkQt" }'; ``` ## Get Task Detail - Response ```json { "total": "1", "errors": [], "tasklist": [ { "id": "2221", "uuid": "15bce51f-442f-4f44-a71d-13c6374a62bd", "socketaccesstoken": "eDcCm5yyUfIvMFspTwww49OUfgXkQt", "parameters": {}, "debugoutput": "", "debugerror": "", "starttime": "1734513809", "endtime": "1734513813", "elapsedseconds": "6.0000", "status": "task_postprocess_end", "createtime": "1734513807", "canceltime": "0", "assigntime": "1734513807", "accepttime": "1734513807", "preprocessstarttime": "1734513807", "preprocessendtime": "1734513807", "postprocessstarttime": "1734513813", "postprocessendtime": "1734513814", "totalcost": "0.003510000000", "chargedcost": "0.002808000000", "discountamount": "0.000702000000", "outputs": [ { "id": "6bc392c93856dfce3a7d1b4261e15af3", "name": "0.png", "contenttype": "image/png", "parentid": "6c1833f39da71e6175bf292b18779baf", "uuid": "15bce51f-442f-4f44-a71d-13c6374a62bd", "size": "202472", "addedtime": "1734513812", "modifiedtime": "1734513812", "accesskey": "dFKlMApaSgMeHKsJyaDeKrefcHahUK", "url": "https://cdn1.wiro.ai/6a6af820-c5050aee-40bd7b83-a2e186c6-7f61f7da-3894e49c-fc0eeb66-9b500fe2/0.png" } ], "size": "202472" } ], "result": true } ``` totalcost is the list price. chargedcost is the amount actually billed after any discount (a store fee is included on store runs); discountamount is the discount. chargedcost is null until the charge is recorded (shortly after task_postprocess_end) and "0" for a failed or cancelled task. ## Kill Task - Make HTTP Post Request with Task ID ```bash curl -X POST "https://api.wiro.ai/v1/Task/Kill" -H "Content-Type: multipart/form-data" -H "x-api-key: ${YOUR_API_KEY}" -H "x-nonce: ${NONCE}" -H "x-signature: ${SIGNATURE}" -d '{ "taskid": "534574" }'; ``` ## Kill Task - Make HTTP Post Request with Socket Access Token ```bash curl -X POST "https://api.wiro.ai/v1/Task/Kill" -H "Content-Type: multipart/form-data" -H "x-api-key: ${YOUR_API_KEY}" -H "x-nonce: ${NONCE}" -H "x-signature: ${SIGNATURE}" -d '{ "socketaccesstoken": "ZpYote30on42O4jjHXNiKmrWAZqbRE" }'; ``` ## Kill Task - Response ```json { "errors": [], "tasklist": [ { "id": "534574", "uuid": "15bce51f-442f-4f44-a71d-13c6374a62bd", "name": "", "socketaccesstoken": "ZpYote30on42O4jjHXNiKmrWAZqbRE", "parameters": { "inputImage": "https://api.wiro.ai/v1/File/mCmUXgZLG1FNjjjwmbtPFr2LVJA112/inputImage-6060136.png" }, "debugoutput": "", "debugerror": "", "starttime": "1734513809", "endtime": "1734513813", "elapsedseconds": "6.0000", "status": "task_cancel", "cps": "0.000585000000", "totalcost": "0.003510000000", "guestid": null, "projectid": "699", "modelid": "598", "description": "", "basemodelid": "0", "runtype": "model", "modelfolderid": "", "modelfileid": "", "callbackurl": "", "marketplaceid": null, "createtime": "1734513807", "canceltime": "0", "assigntime": "1734513807", "accepttime": "1734513807", "preprocessstarttime": "1734513807", "preprocessendtime": "1734513807", "postprocessstarttime": "1734513813", "postprocessendtime": "1734513814", "pexit": "0", "categories": "["tool","image-to-image","quick-showcase","compare-landscape"]", "outputs": [ { "id": "6bc392c93856dfce3a7d1b4261e15af3", "name": "0.png", "contenttype": "image/png", "parentid": "6c1833f39da71e6175bf292b18779baf", "uuid": "15bce51f-442f-4f44-a71d-13c6374a62bd", "size": "202472", "addedtime": "1734513812", "modifiedtime": "1734513812", "accesskey": "dFKlMApaSgMeHKsJyaDeKrefcHahUK", "foldercount": "0", "filecount": "0", "ispublic": 0, "expiretime": null, "url": "https://cdn1.wiro.ai/6a6af820-c5050aee-40bd7b83-a2e186c6-7f61f7da-3894e49c-fc0eeb66-9b500fe2/0.png" } ], "size": "202472" } ], "result": true } ``` ## Cancel Task - Make HTTP Post Request (For tasks on queue) ```bash curl -X POST "https://api.wiro.ai/v1/Task/Cancel" -H "Content-Type: multipart/form-data" -H "x-api-key: ${YOUR_API_KEY}" -H "x-nonce: ${NONCE}" -H "x-signature: ${SIGNATURE}" -d '{ "taskid": "634574" }'; ``` ## Cancel Task - Response ```json { "errors": [], "tasklist": [ { "id": "634574", "uuid": "15bce51f-442f-4f44-a71d-13c6374a62bd", "name": "", "socketaccesstoken": "ZpYote30on42O4jjHXNiKmrWAZqbRE", "parameters": { "inputImage": "https://api.wiro.ai/v1/File/mCmUXgZLG1FNjjjwmbtPFr2LVJA112/inputImage-6060136.png" }, "debugoutput": "", "debugerror": "", "starttime": "1734513809", "endtime": "1734513813", "elapsedseconds": "6.0000", "status": "task_cancel", "cps": "0.000585000000", "totalcost": "0.003510000000", "guestid": null, "projectid": "699", "modelid": "598", "description": "", "basemodelid": "0", "runtype": "model", "modelfolderid": "", "modelfileid": "", "callbackurl": "", "marketplaceid": null, "createtime": "1734513807", "canceltime": "0", "assigntime": "1734513807", "accepttime": "1734513807", "preprocessstarttime": "1734513807", "preprocessendtime": "1734513807", "postprocessstarttime": "1734513813", "postprocessendtime": "1734513814", "pexit": "0", "categories": "["tool","image-to-image","quick-showcase","compare-landscape"]", "outputs": [ { "id": "6bc392c93856dfce3a7d1b4261e15af3", "name": "0.png", "contenttype": "image/png", "parentid": "6c1833f39da71e6175bf292b18779baf", "uuid": "15bce51f-442f-4f44-a71d-13c6374a62bd", "size": "202472", "addedtime": "1734513812", "modifiedtime": "1734513812", "accesskey": "dFKlMApaSgMeHKsJyaDeKrefcHahUK", "foldercount": "0", "filecount": "0", "ispublic": 0, "expiretime": null, "url": "https://cdn1.wiro.ai/6a6af820-c5050aee-40bd7b83-a2e186c6-7f61f7da-3894e49c-fc0eeb66-9b500fe2/0.png" } ], "size": "202472" } ], "result": true } ``` ## Task Status Information This section defines the possible task status values returned by the API when polling for task completion. ### Completed Task Statuses (Polling can stop) These indicate that the task has reached a terminal state — either success or failure. Once any of these is received, polling should stop. - task_postprocess_end : Task completed successfully and post-processing is done. - task_cancel : Task was cancelled by the user or system. ### Running Task Statuses (Continue polling) These statuses indicate that the task is still in progress. Polling should continue if one of these is returned. - task_queue : Task is waiting in the queue. - task_accept : Task has been accepted for processing. - task_assign : Task is being assigned to a worker. - task_preprocess_start : Preprocessing is starting. - task_preprocess_end : Preprocessing is complete. - task_start : Task execution has started. - task_output : Output is being generated.