Validation
Validate post content
Dry-run the same declarative checks the create path uses, WITHOUT creating anything: per-platform caption limits (each limit grounded in the platform handler or the platform’s documented maximum), required-media rules (e.g. Instagram), and media extension screening. Free and unbilled. Platforms with no honestly-documented ceiling (Snapchat stories carry no caption; Tumblr documents no body cap) report limit: null. Requires scope social:read.
POST
/
social
/
validate
/
post
Validate post content
curl --request POST \
--url https://api.smartlyq.com/v1/social/validate/post \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"content": "Launching today! 🚀",
"platforms": [
"twitter",
"instagram",
"linkedin"
],
"media_urls": [
"https://cdn.example.com/launch.jpg"
]
}
'import requests
url = "https://api.smartlyq.com/v1/social/validate/post"
payload = {
"content": "Launching today! 🚀",
"platforms": ["twitter", "instagram", "linkedin"],
"media_urls": ["https://cdn.example.com/launch.jpg"]
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
content: 'Launching today! 🚀',
platforms: ['twitter', 'instagram', 'linkedin'],
media_urls: ['https://cdn.example.com/launch.jpg']
})
};
fetch('https://api.smartlyq.com/v1/social/validate/post', 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.smartlyq.com/v1/social/validate/post",
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([
'content' => 'Launching today! 🚀',
'platforms' => [
'twitter',
'instagram',
'linkedin'
],
'media_urls' => [
'https://cdn.example.com/launch.jpg'
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($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.smartlyq.com/v1/social/validate/post"
payload := strings.NewReader("{\n \"content\": \"Launching today! 🚀\",\n \"platforms\": [\n \"twitter\",\n \"instagram\",\n \"linkedin\"\n ],\n \"media_urls\": [\n \"https://cdn.example.com/launch.jpg\"\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
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.smartlyq.com/v1/social/validate/post")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"content\": \"Launching today! 🚀\",\n \"platforms\": [\n \"twitter\",\n \"instagram\",\n \"linkedin\"\n ],\n \"media_urls\": [\n \"https://cdn.example.com/launch.jpg\"\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.smartlyq.com/v1/social/validate/post")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"content\": \"Launching today! 🚀\",\n \"platforms\": [\n \"twitter\",\n \"instagram\",\n \"linkedin\"\n ],\n \"media_urls\": [\n \"https://cdn.example.com/launch.jpg\"\n ]\n}"
response = http.request(request)
puts response.read_body{
"success": true,
"data": {
"valid": true,
"errors": [
"example-error"
],
"platforms": {}
},
"meta": {
"request_id": "req_9f3a2b1c-7d4e-4a08-b2c6-5e1f8a9d0c34",
"timestamp": "2026-07-26T09:41:22Z"
}
}{
"success": false,
"error": {
"code": "INVALID_API_KEY",
"message": "Missing or malformed Authorization header",
"details": {}
},
"meta": {
"request_id": "req_9f3a2b1c-7d4e-4a08-b2c6-5e1f8a9d0c34",
"timestamp": "2026-07-26T09:41:22Z"
}
}{
"success": false,
"error": {
"code": "VALIDATION_ERROR",
"message": "Missing required fields: content, platforms.",
"details": {
"fields": [
"content",
"platforms"
]
}
},
"meta": {
"request_id": "req_9f3a2b1c-7d4e-4a08-b2c6-5e1f8a9d0c34",
"timestamp": "2026-07-26T09:41:22Z"
}
}Authorizations
API key from Developer dashboard (Bearer token).
Body
application/json
Previous
Validate media URLChecks that a media URL is publicly reachable and reports its content type, byte size, and detected kind (image/video). SSRF-guarded: private and internal hosts are rejected. Uses a HEAD request with a 1-byte ranged-GET fallback for CDNs that refuse HEAD. Free and unbilled. Requires scope `social:read`.
Next
⌘I
Validate post content
curl --request POST \
--url https://api.smartlyq.com/v1/social/validate/post \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"content": "Launching today! 🚀",
"platforms": [
"twitter",
"instagram",
"linkedin"
],
"media_urls": [
"https://cdn.example.com/launch.jpg"
]
}
'import requests
url = "https://api.smartlyq.com/v1/social/validate/post"
payload = {
"content": "Launching today! 🚀",
"platforms": ["twitter", "instagram", "linkedin"],
"media_urls": ["https://cdn.example.com/launch.jpg"]
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
content: 'Launching today! 🚀',
platforms: ['twitter', 'instagram', 'linkedin'],
media_urls: ['https://cdn.example.com/launch.jpg']
})
};
fetch('https://api.smartlyq.com/v1/social/validate/post', 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.smartlyq.com/v1/social/validate/post",
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([
'content' => 'Launching today! 🚀',
'platforms' => [
'twitter',
'instagram',
'linkedin'
],
'media_urls' => [
'https://cdn.example.com/launch.jpg'
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($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.smartlyq.com/v1/social/validate/post"
payload := strings.NewReader("{\n \"content\": \"Launching today! 🚀\",\n \"platforms\": [\n \"twitter\",\n \"instagram\",\n \"linkedin\"\n ],\n \"media_urls\": [\n \"https://cdn.example.com/launch.jpg\"\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
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.smartlyq.com/v1/social/validate/post")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"content\": \"Launching today! 🚀\",\n \"platforms\": [\n \"twitter\",\n \"instagram\",\n \"linkedin\"\n ],\n \"media_urls\": [\n \"https://cdn.example.com/launch.jpg\"\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.smartlyq.com/v1/social/validate/post")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"content\": \"Launching today! 🚀\",\n \"platforms\": [\n \"twitter\",\n \"instagram\",\n \"linkedin\"\n ],\n \"media_urls\": [\n \"https://cdn.example.com/launch.jpg\"\n ]\n}"
response = http.request(request)
puts response.read_body{
"success": true,
"data": {
"valid": true,
"errors": [
"example-error"
],
"platforms": {}
},
"meta": {
"request_id": "req_9f3a2b1c-7d4e-4a08-b2c6-5e1f8a9d0c34",
"timestamp": "2026-07-26T09:41:22Z"
}
}{
"success": false,
"error": {
"code": "INVALID_API_KEY",
"message": "Missing or malformed Authorization header",
"details": {}
},
"meta": {
"request_id": "req_9f3a2b1c-7d4e-4a08-b2c6-5e1f8a9d0c34",
"timestamp": "2026-07-26T09:41:22Z"
}
}{
"success": false,
"error": {
"code": "VALIDATION_ERROR",
"message": "Missing required fields: content, platforms.",
"details": {
"fields": [
"content",
"platforms"
]
}
},
"meta": {
"request_id": "req_9f3a2b1c-7d4e-4a08-b2c6-5e1f8a9d0c34",
"timestamp": "2026-07-26T09:41:22Z"
}
}
