Skip to main content
POST
/
api
/
v1
/
canvases
/
{canvasId}
/
direct
/
nodes
Create a node
curl --request POST \
  --url https://api.melius.com/api/v1/canvases/{canvasId}/direct/nodes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-team-id: <api-key>' \
  --data '
{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "geometry": {
    "x": 123,
    "y": 123,
    "w": 123,
    "h": 123,
    "zIndex": 123
  },
  "title": "<string>",
  "groupId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "modelConfig": {
    "model": "<string>",
    "variant": "<string>",
    "tier": "<string>"
  },
  "textPrompt": "<string>",
  "text": "<string>",
  "outputDuration": 1,
  "matchAudioToVideoDuration": true,
  "seed": 1073741823,
  "negativePrompt": "<string>",
  "stitchClipOrder": [
    "<string>"
  ],
  "stitchAudioOverlays": [
    {
      "nodeId": "<string>",
      "startTimeSeconds": 1,
      "trimStartMs": 1,
      "trimEndMs": 1
    }
  ],
  "stitchClipTrims": {},
  "voiceId": "<string>",
  "customVoiceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "elevenLabsVoiceSettings": {
    "speed": 2.125,
    "stability": 0.5,
    "similarityBoost": 0.5,
    "style": 0.5,
    "speakerBoost": true,
    "removeBackgroundNoise": true
  },
  "src": "<string>",
  "s3Key": "<string>",
  "s3Bucket": "<string>",
  "contentType": "<string>",
  "sourceNodeId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "templatePorts": [
    {
      "direction": "input",
      "portId": "<string>",
      "label": "<string>",
      "handleType": "<string>",
      "nodeId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "internalHandle": "<string>",
      "required": true,
      "maxConnections": 1,
      "internalTargets": [
        {
          "nodeId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "internalHandle": "<string>"
        }
      ],
      "connectedSourceIds": [
        "<string>"
      ],
      "top": "<string>"
    }
  ],
  "templateId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
'
import requests

url = "https://api.melius.com/api/v1/canvases/{canvasId}/direct/nodes"

payload = {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "geometry": {
        "x": 123,
        "y": 123,
        "w": 123,
        "h": 123,
        "zIndex": 123
    },
    "title": "<string>",
    "groupId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "modelConfig": {
        "model": "<string>",
        "variant": "<string>",
        "tier": "<string>"
    },
    "textPrompt": "<string>",
    "text": "<string>",
    "outputDuration": 1,
    "matchAudioToVideoDuration": True,
    "seed": 1073741823,
    "negativePrompt": "<string>",
    "stitchClipOrder": ["<string>"],
    "stitchAudioOverlays": [
        {
            "nodeId": "<string>",
            "startTimeSeconds": 1,
            "trimStartMs": 1,
            "trimEndMs": 1
        }
    ],
    "stitchClipTrims": {},
    "voiceId": "<string>",
    "customVoiceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "elevenLabsVoiceSettings": {
        "speed": 2.125,
        "stability": 0.5,
        "similarityBoost": 0.5,
        "style": 0.5,
        "speakerBoost": True,
        "removeBackgroundNoise": True
    },
    "src": "<string>",
    "s3Key": "<string>",
    "s3Bucket": "<string>",
    "contentType": "<string>",
    "sourceNodeId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "templatePorts": [
        {
            "direction": "input",
            "portId": "<string>",
            "label": "<string>",
            "handleType": "<string>",
            "nodeId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
            "internalHandle": "<string>",
            "required": True,
            "maxConnections": 1,
            "internalTargets": [
                {
                    "nodeId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
                    "internalHandle": "<string>"
                }
            ],
            "connectedSourceIds": ["<string>"],
            "top": "<string>"
        }
    ],
    "templateId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
headers = {
    "Authorization": "Bearer <token>",
    "x-team-id": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
const options = {
  method: 'POST',
  headers: {
    Authorization: 'Bearer <token>',
    'x-team-id': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    geometry: {x: 123, y: 123, w: 123, h: 123, zIndex: 123},
    title: '<string>',
    groupId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    modelConfig: {model: '<string>', variant: '<string>', tier: '<string>'},
    textPrompt: '<string>',
    text: '<string>',
    outputDuration: 1,
    matchAudioToVideoDuration: true,
    seed: 1073741823,
    negativePrompt: '<string>',
    stitchClipOrder: ['<string>'],
    stitchAudioOverlays: [{nodeId: '<string>', startTimeSeconds: 1, trimStartMs: 1, trimEndMs: 1}],
    stitchClipTrims: {},
    voiceId: '<string>',
    customVoiceId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    elevenLabsVoiceSettings: {
      speed: 2.125,
      stability: 0.5,
      similarityBoost: 0.5,
      style: 0.5,
      speakerBoost: true,
      removeBackgroundNoise: true
    },
    src: '<string>',
    s3Key: '<string>',
    s3Bucket: '<string>',
    contentType: '<string>',
    sourceNodeId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    templatePorts: [
      {
        direction: 'input',
        portId: '<string>',
        label: '<string>',
        handleType: '<string>',
        nodeId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
        internalHandle: '<string>',
        required: true,
        maxConnections: 1,
        internalTargets: [{nodeId: '3c90c3cc-0d44-4b50-8888-8dd25736052a', internalHandle: '<string>'}],
        connectedSourceIds: ['<string>'],
        top: '<string>'
      }
    ],
    templateId: '3c90c3cc-0d44-4b50-8888-8dd25736052a'
  })
};

fetch('https://api.melius.com/api/v1/canvases/{canvasId}/direct/nodes', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.melius.com/api/v1/canvases/{canvasId}/direct/nodes",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'geometry' => [
        'x' => 123,
        'y' => 123,
        'w' => 123,
        'h' => 123,
        'zIndex' => 123
    ],
    'title' => '<string>',
    'groupId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'modelConfig' => [
        'model' => '<string>',
        'variant' => '<string>',
        'tier' => '<string>'
    ],
    'textPrompt' => '<string>',
    'text' => '<string>',
    'outputDuration' => 1,
    'matchAudioToVideoDuration' => true,
    'seed' => 1073741823,
    'negativePrompt' => '<string>',
    'stitchClipOrder' => [
        '<string>'
    ],
    'stitchAudioOverlays' => [
        [
                'nodeId' => '<string>',
                'startTimeSeconds' => 1,
                'trimStartMs' => 1,
                'trimEndMs' => 1
        ]
    ],
    'stitchClipTrims' => [
        
    ],
    'voiceId' => '<string>',
    'customVoiceId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'elevenLabsVoiceSettings' => [
        'speed' => 2.125,
        'stability' => 0.5,
        'similarityBoost' => 0.5,
        'style' => 0.5,
        'speakerBoost' => true,
        'removeBackgroundNoise' => true
    ],
    'src' => '<string>',
    's3Key' => '<string>',
    's3Bucket' => '<string>',
    'contentType' => '<string>',
    'sourceNodeId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'templatePorts' => [
        [
                'direction' => 'input',
                'portId' => '<string>',
                'label' => '<string>',
                'handleType' => '<string>',
                'nodeId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
                'internalHandle' => '<string>',
                'required' => true,
                'maxConnections' => 1,
                'internalTargets' => [
                                [
                                                                'nodeId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
                                                                'internalHandle' => '<string>'
                                ]
                ],
                'connectedSourceIds' => [
                                '<string>'
                ],
                'top' => '<string>'
        ]
    ],
    'templateId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "x-team-id: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.melius.com/api/v1/canvases/{canvasId}/direct/nodes"

	payload := strings.NewReader("{\n  \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"geometry\": {\n    \"x\": 123,\n    \"y\": 123,\n    \"w\": 123,\n    \"h\": 123,\n    \"zIndex\": 123\n  },\n  \"title\": \"<string>\",\n  \"groupId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"modelConfig\": {\n    \"model\": \"<string>\",\n    \"variant\": \"<string>\",\n    \"tier\": \"<string>\"\n  },\n  \"textPrompt\": \"<string>\",\n  \"text\": \"<string>\",\n  \"outputDuration\": 1,\n  \"matchAudioToVideoDuration\": true,\n  \"seed\": 1073741823,\n  \"negativePrompt\": \"<string>\",\n  \"stitchClipOrder\": [\n    \"<string>\"\n  ],\n  \"stitchAudioOverlays\": [\n    {\n      \"nodeId\": \"<string>\",\n      \"startTimeSeconds\": 1,\n      \"trimStartMs\": 1,\n      \"trimEndMs\": 1\n    }\n  ],\n  \"stitchClipTrims\": {},\n  \"voiceId\": \"<string>\",\n  \"customVoiceId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"elevenLabsVoiceSettings\": {\n    \"speed\": 2.125,\n    \"stability\": 0.5,\n    \"similarityBoost\": 0.5,\n    \"style\": 0.5,\n    \"speakerBoost\": true,\n    \"removeBackgroundNoise\": true\n  },\n  \"src\": \"<string>\",\n  \"s3Key\": \"<string>\",\n  \"s3Bucket\": \"<string>\",\n  \"contentType\": \"<string>\",\n  \"sourceNodeId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"templatePorts\": [\n    {\n      \"direction\": \"input\",\n      \"portId\": \"<string>\",\n      \"label\": \"<string>\",\n      \"handleType\": \"<string>\",\n      \"nodeId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"internalHandle\": \"<string>\",\n      \"required\": true,\n      \"maxConnections\": 1,\n      \"internalTargets\": [\n        {\n          \"nodeId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n          \"internalHandle\": \"<string>\"\n        }\n      ],\n      \"connectedSourceIds\": [\n        \"<string>\"\n      ],\n      \"top\": \"<string>\"\n    }\n  ],\n  \"templateId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("x-team-id", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}
require 'uri'
require 'net/http'

url = URI("https://api.melius.com/api/v1/canvases/{canvasId}/direct/nodes")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["x-team-id"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"geometry\": {\n    \"x\": 123,\n    \"y\": 123,\n    \"w\": 123,\n    \"h\": 123,\n    \"zIndex\": 123\n  },\n  \"title\": \"<string>\",\n  \"groupId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"modelConfig\": {\n    \"model\": \"<string>\",\n    \"variant\": \"<string>\",\n    \"tier\": \"<string>\"\n  },\n  \"textPrompt\": \"<string>\",\n  \"text\": \"<string>\",\n  \"outputDuration\": 1,\n  \"matchAudioToVideoDuration\": true,\n  \"seed\": 1073741823,\n  \"negativePrompt\": \"<string>\",\n  \"stitchClipOrder\": [\n    \"<string>\"\n  ],\n  \"stitchAudioOverlays\": [\n    {\n      \"nodeId\": \"<string>\",\n      \"startTimeSeconds\": 1,\n      \"trimStartMs\": 1,\n      \"trimEndMs\": 1\n    }\n  ],\n  \"stitchClipTrims\": {},\n  \"voiceId\": \"<string>\",\n  \"customVoiceId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"elevenLabsVoiceSettings\": {\n    \"speed\": 2.125,\n    \"stability\": 0.5,\n    \"similarityBoost\": 0.5,\n    \"style\": 0.5,\n    \"speakerBoost\": true,\n    \"removeBackgroundNoise\": true\n  },\n  \"src\": \"<string>\",\n  \"s3Key\": \"<string>\",\n  \"s3Bucket\": \"<string>\",\n  \"contentType\": \"<string>\",\n  \"sourceNodeId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"templatePorts\": [\n    {\n      \"direction\": \"input\",\n      \"portId\": \"<string>\",\n      \"label\": \"<string>\",\n      \"handleType\": \"<string>\",\n      \"nodeId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n      \"internalHandle\": \"<string>\",\n      \"required\": true,\n      \"maxConnections\": 1,\n      \"internalTargets\": [\n        {\n          \"nodeId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n          \"internalHandle\": \"<string>\"\n        }\n      ],\n      \"connectedSourceIds\": [\n        \"<string>\"\n      ],\n      \"top\": \"<string>\"\n    }\n  ],\n  \"templateId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n}"

response = http.request(request)
puts response.read_body
{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "geometry": {
    "x": 123,
    "y": 123,
    "w": 123,
    "h": 123,
    "zIndex": 123
  },
  "groupId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "title": "<string>",
  "modelConfig": {
    "model": "<string>",
    "variant": "<string>",
    "tier": "<string>",
    "ratios": [
      "<string>"
    ],
    "resolution": "<string>",
    "voiceId": "<string>",
    "customVoiceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "font": {
      "familyName": "<string>"
    }
  },
  "textPrompt": "<string>",
  "outputDuration": 1,
  "seed": 1073741823,
  "negativePrompt": "<string>",
  "src": "<string>",
  "previewSrc": "<string>",
  "generatedText": "<string>",
  "activeVersionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "assetDurationInMs": 1,
  "createdByUserId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "autoModel": true,
  "fastModel": true,
  "matchAudioToVideoDuration": true,
  "stitchClipOrder": [
    "<string>"
  ],
  "stitchAudioOverlays": [
    {
      "nodeId": "<string>",
      "startTimeSeconds": 1,
      "trimStartMs": 1,
      "trimEndMs": 1
    }
  ],
  "stitchClipTrims": {},
  "voiceId": "<string>",
  "customVoiceId": "<string>",
  "elevenLabsVoiceSettings": {
    "speed": 2.125,
    "stability": 0.5,
    "similarityBoost": 0.5,
    "style": 0.5,
    "speakerBoost": true,
    "removeBackgroundNoise": true
  }
}
{
  "statusCode": 123,
  "message": "<string>",
  "error": "<string>"
}
{
  "statusCode": 123,
  "message": "<string>",
  "error": "<string>"
}
{
  "message": "<string>"
}
{
  "message": "<string>"
}
{
  "statusCode": 123,
  "message": "<string>",
  "error": "<string>",
  "retryAfterSeconds": 123
}

Authorizations

​
Authorization
string
header
required

A Melius API key (mel_...), sent as Authorization: Bearer <key>.

​
x-team-id
string
header
required

The team (workspace) to act on. Defaults to the key's team when omitted.

Path Parameters

​
canvasId
string<uuid>
required

Body

application/json

Body

​
id
string<uuid>
required
​
nodeType
enum<string>
required
Available options:
text,
image,
video,
audio,
file,
group,
custom_text,
pdf,
composite,
stitch,
magic_resize
​
geometry
object
required
​
title
string
​
groupId
string<uuid> | null
​
modelConfig
object | null
​
textPrompt
string | null
​
text
string
Maximum string length: 100000
​
outputAspectRatio
enum<string> | null
Available options:
21:9,
16:9,
4:3,
5:4,
3:2,
1:1,
2:3,
3:4,
4:5,
9:16,
9:21
​
outputDuration
integer | null
Required range: x > 0
​
outputResolution
Available options:
360p,
480p,
540p,
580p,
720p,
1080p,
1440p,
2160p,
4k,
0.5K,
1K,
2K,
4K,
1k,
2k
​
matchAudioToVideoDuration
boolean | null
​
seed
integer | null
Required range: 0 <= x <= 2147483647
​
negativePrompt
string | null
​
stitchClipOrder
string[] | null
​
stitchScaleFit
enum<string> | null
Available options:
fit,
stretch
​
stitchAudioOverlays
object[] | null
​
stitchClipTrims
object | null
​
voiceId
string | null
Minimum string length: 1
​
customVoiceId
string<uuid> | null
​
elevenLabsVoiceSettings
object | null
​
src
string<uri> | null
​
mediaType
enum<string> | null
Available options:
image,
video,
audio,
pdf
​
s3Key
string
​
s3Bucket
string
​
contentType
string
​
sourceNodeId
string<uuid>
​
groupType
enum<string> | null
Available options:
default,
unified,
template
​
templatePorts
object[] | null
​
templateId
string<uuid> | null

Response

201

​
id
string<uuid>
required
​
nodeType
enum<string>
required
Available options:
text,
image,
video,
audio,
file,
group,
custom_text,
pdf,
composite,
stitch,
magic_resize
​
geometry
object
required
​
groupId
string<uuid> | null
required
​
title
string
required
​
modelConfig
object | null
required
​
textPrompt
string | null
required
​
outputAspectRatio
enum<string> | null
required
Available options:
21:9,
16:9,
4:3,
5:4,
3:2,
1:1,
2:3,
3:4,
4:5,
9:16,
9:21
​
outputDuration
integer | null
required
Required range: x > 0
​
outputResolution
required
Available options:
360p,
480p,
540p,
580p,
720p,
1080p,
1440p,
2160p,
4k,
0.5K,
1K,
2K,
4K,
1k,
2k
​
seed
integer | null
required
Required range: 0 <= x <= 2147483647
​
negativePrompt
string | null
required
​
src
string | null
required
​
previewSrc
string | null
required
​
mediaType
enum<string> | null
required
Available options:
image,
video,
audio,
pdf
​
generatedText
string | null
required
​
activeVersionId
string<uuid> | null
required
​
assetDurationInMs
integer | null
required
Required range: x >= 0
​
createdByUserId
string<uuid> | null
required
​
autoModel
boolean | null
​
fastModel
boolean | null
​
matchAudioToVideoDuration
boolean | null
​
stitchClipOrder
string[] | null
​
stitchScaleFit
enum<string> | null
Available options:
fit,
stretch
​
stitchAudioOverlays
object[] | null
​
stitchClipTrims
object | null
​
voiceId
string | null
​
customVoiceId
string | null
​
elevenLabsVoiceSettings
object | null
Last modified on July 9, 2026