Prepare Video
curl --request POST \
--url https://api.usenarrative.ai/api/v1/hooks/prepare \
--header 'Content-Type: multipart/form-data' \
--form 'videos=<string>' \
--form videos.items='@example-file'import requests
url = "https://api.usenarrative.ai/api/v1/hooks/prepare"
files = { "videos.items": ("example-file", open("example-file", "rb")) }
payload = { "videos": "<string>" }
response = requests.post(url, data=payload, files=files)
print(response.text)const form = new FormData();
form.append('videos', '<string>');
form.append('videos.items', '{
"fileName": "example-file"
}');
const options = {method: 'POST'};
options.body = form;
fetch('https://api.usenarrative.ai/api/v1/hooks/prepare', 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.usenarrative.ai/api/v1/hooks/prepare",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--",
CURLOPT_HTTPHEADER => [
"Content-Type: multipart/form-data"
],
]);
$response = curl_exec($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.usenarrative.ai/api/v1/hooks/prepare"
payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--")
req, _ := http.NewRequest("POST", url, payload)
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.usenarrative.ai/api/v1/hooks/prepare")
.body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.usenarrative.ai/api/v1/hooks/prepare")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--"
response = http.request(request)
puts response.read_body{
"continuous_video_url": "https://cdn.usenarrative.ai/prepared/continuous_abc123.mp4",
"transcript_url": "https://cdn.usenarrative.ai/prepared/transcript_abc123.json",
"total_duration_sec": 5234.5,
"episodes_processed": 3
}{
"detail": "Invalid video URL provided"
}{
"detail": "Invalid video URL provided"
}Hooks
Prepare Video
Merge multiple episodes into a continuous video with smart transitions
POST
/
api
/
v1
/
hooks
/
prepare
Prepare Video
curl --request POST \
--url https://api.usenarrative.ai/api/v1/hooks/prepare \
--header 'Content-Type: multipart/form-data' \
--form 'videos=<string>' \
--form videos.items='@example-file'import requests
url = "https://api.usenarrative.ai/api/v1/hooks/prepare"
files = { "videos.items": ("example-file", open("example-file", "rb")) }
payload = { "videos": "<string>" }
response = requests.post(url, data=payload, files=files)
print(response.text)const form = new FormData();
form.append('videos', '<string>');
form.append('videos.items', '{
"fileName": "example-file"
}');
const options = {method: 'POST'};
options.body = form;
fetch('https://api.usenarrative.ai/api/v1/hooks/prepare', 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.usenarrative.ai/api/v1/hooks/prepare",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--",
CURLOPT_HTTPHEADER => [
"Content-Type: multipart/form-data"
],
]);
$response = curl_exec($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.usenarrative.ai/api/v1/hooks/prepare"
payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--")
req, _ := http.NewRequest("POST", url, payload)
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.usenarrative.ai/api/v1/hooks/prepare")
.body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.usenarrative.ai/api/v1/hooks/prepare")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"videos.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--"
response = http.request(request)
puts response.read_body{
"continuous_video_url": "https://cdn.usenarrative.ai/prepared/continuous_abc123.mp4",
"transcript_url": "https://cdn.usenarrative.ai/prepared/transcript_abc123.json",
"total_duration_sec": 5234.5,
"episodes_processed": 3
}{
"detail": "Invalid video URL provided"
}{
"detail": "Invalid video URL provided"
}POST /api/v1/hooks/prepare
Prepare multiple episode files into a continuous video with smart transitions. The AI analyzes episode boundaries, removes freeze frames, and eliminates overlapping recap content for seamless playback.Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| videos | File[] | Yes | Episode video files to merge (mp4, mov, avi, mkv) |
Response
| Field | Description |
|---|---|
| continuous_video_url | URL to the merged continuous video |
| transcript_url | URL to the transcript JSON file with word-level timestamps |
| total_duration_sec | Total duration of the continuous video in seconds |
| episodes_processed | Number of episodes that were merged |
Example Request
curl -X POST https://api.usenarrative.ai/api/v1/hooks/prepare \
-H "Content-Type: multipart/form-data" \
-F "videos=@episode-1.mp4" \
-F "videos=@episode-2.mp4" \
-F "videos=@episode-3.mp4"
Example Response
{
"continuous_video_url": "https://cdn.usenarrative.ai/prepared/continuous_abc123.mp4",
"transcript_url": "https://cdn.usenarrative.ai/prepared/transcript_abc123.json",
"total_duration_sec": 5234.5,
"episodes_processed": 3
}
Notes
- Supports common video formats: mp4, mov, avi, mkv
- AI automatically detects and removes freeze frames between episodes
- Overlapping recap content at episode starts is intelligently trimmed
- The transcript includes word-level timestamps for precise hook generation
- Use the returned URLs with the Generate Hook endpoint
Body
multipart/form-data
Episode video files to merge into continuous video
Response
Video prepared successfully
URL to the merged continuous video
Example:
"https://cdn.usenarrative.ai/prepared/continuous_abc123.mp4"
URL to the transcript JSON file
Example:
"https://cdn.usenarrative.ai/prepared/transcript_abc123.json"
Total duration of the continuous video in seconds
Example:
5234.5
Number of episodes that were merged
Example:
3

