cURL
curl --request POST \
--url https://api.ttapi.io/suno/v1/fade-in \
--header 'Content-Type: application/json' \
--header 'TT-API-KEY: <api-key>' \
--data '
{
"music_id": "<string>",
"fade_time_s": 123,
"title": "<string>",
"isStorage": true,
"hookUrl": "<string>"
}
'import requests
url = "https://api.ttapi.io/suno/v1/fade-in"
payload = {
"music_id": "<string>",
"fade_time_s": 123,
"title": "<string>",
"isStorage": True,
"hookUrl": "<string>"
}
headers = {
"TT-API-KEY": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'TT-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
music_id: '<string>',
fade_time_s: 123,
title: '<string>',
isStorage: true,
hookUrl: '<string>'
})
};
fetch('https://api.ttapi.io/suno/v1/fade-in', 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.ttapi.io/suno/v1/fade-in",
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([
'music_id' => '<string>',
'fade_time_s' => 123,
'title' => '<string>',
'isStorage' => true,
'hookUrl' => '<string>'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"TT-API-KEY: <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.ttapi.io/suno/v1/fade-in"
payload := strings.NewReader("{\n \"music_id\": \"<string>\",\n \"fade_time_s\": 123,\n \"title\": \"<string>\",\n \"isStorage\": true,\n \"hookUrl\": \"<string>\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("TT-API-KEY", "<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))
}HttpResponse<String> response = Unirest.post("https://api.ttapi.io/suno/v1/fade-in")
.header("TT-API-KEY", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"music_id\": \"<string>\",\n \"fade_time_s\": 123,\n \"title\": \"<string>\",\n \"isStorage\": true,\n \"hookUrl\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.ttapi.io/suno/v1/fade-in")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["TT-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"music_id\": \"<string>\",\n \"fade_time_s\": 123,\n \"title\": \"<string>\",\n \"isStorage\": true,\n \"hookUrl\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"status": "SUCCESS",
"message": "success",
"data": {
"jobId": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}
}{
"status": "FAILED",
"message": "<string>",
"data": {}
}{
"status": "FAILED",
"message": "Wrong TT-API-KEY or email is not activated."
}Suno
Suno Fade In API Documentation
Use the Suno fade-in API to add a gradual audio fade-in effect to an existing Suno track.
POST
/
suno
/
v1
/
fade-in
cURL
curl --request POST \
--url https://api.ttapi.io/suno/v1/fade-in \
--header 'Content-Type: application/json' \
--header 'TT-API-KEY: <api-key>' \
--data '
{
"music_id": "<string>",
"fade_time_s": 123,
"title": "<string>",
"isStorage": true,
"hookUrl": "<string>"
}
'import requests
url = "https://api.ttapi.io/suno/v1/fade-in"
payload = {
"music_id": "<string>",
"fade_time_s": 123,
"title": "<string>",
"isStorage": True,
"hookUrl": "<string>"
}
headers = {
"TT-API-KEY": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'TT-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
music_id: '<string>',
fade_time_s: 123,
title: '<string>',
isStorage: true,
hookUrl: '<string>'
})
};
fetch('https://api.ttapi.io/suno/v1/fade-in', 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.ttapi.io/suno/v1/fade-in",
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([
'music_id' => '<string>',
'fade_time_s' => 123,
'title' => '<string>',
'isStorage' => true,
'hookUrl' => '<string>'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"TT-API-KEY: <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.ttapi.io/suno/v1/fade-in"
payload := strings.NewReader("{\n \"music_id\": \"<string>\",\n \"fade_time_s\": 123,\n \"title\": \"<string>\",\n \"isStorage\": true,\n \"hookUrl\": \"<string>\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("TT-API-KEY", "<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))
}HttpResponse<String> response = Unirest.post("https://api.ttapi.io/suno/v1/fade-in")
.header("TT-API-KEY", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"music_id\": \"<string>\",\n \"fade_time_s\": 123,\n \"title\": \"<string>\",\n \"isStorage\": true,\n \"hookUrl\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.ttapi.io/suno/v1/fade-in")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["TT-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"music_id\": \"<string>\",\n \"fade_time_s\": 123,\n \"title\": \"<string>\",\n \"isStorage\": true,\n \"hookUrl\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"status": "SUCCESS",
"message": "success",
"data": {
"jobId": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}
}{
"status": "FAILED",
"message": "<string>",
"data": {}
}{
"status": "FAILED",
"message": "Wrong TT-API-KEY or email is not activated."
}Use this endpoint to apply a fade-in effect to an existing Suno track. Submit
music_id, fade_time_s, and title; store the returned jobId and retrieve the edited result through Suno Fetch V2 or your hookUrl callback.Authorizations
You can obtain your API key from the TTAPI Dashboard.
Body
application/json
Source music ID to edit.
Fade duration, in seconds.
Base title for the edited track. The resulting title is submitted with a Fade In suffix.
Whether to store the generated audio.
- true: The audio will be stored and a TTAPI CDN URL will be returned
- false: The original source URL will be returned
Callback notification URL
Last modified on June 8, 2026
⌘I