Documentation Index
Fetch the complete documentation index at: /docs/llms.txt
Use this file to discover all available pages before exploring further.
curl --request POST \
--url https://api.impossibl.com/v1/images/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "openai/gpt-image-2",
"prompt": "<string>",
"n": 1,
"size": "<string>",
"output_compression": 50,
"user": "<string>"
}
'import requests
url = "https://api.impossibl.com/v1/images/generations"
payload = {
"model": "openai/gpt-image-2",
"prompt": "<string>",
"n": 1,
"size": "<string>",
"output_compression": 50,
"user": "<string>"
}
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({
model: 'openai/gpt-image-2',
prompt: '<string>',
n: 1,
size: '<string>',
output_compression: 50,
user: '<string>'
})
};
fetch('https://api.impossibl.com/v1/images/generations', 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.impossibl.com/v1/images/generations",
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([
'model' => 'openai/gpt-image-2',
'prompt' => '<string>',
'n' => 1,
'size' => '<string>',
'output_compression' => 50,
'user' => '<string>'
]),
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.impossibl.com/v1/images/generations"
payload := strings.NewReader("{\n \"model\": \"openai/gpt-image-2\",\n \"prompt\": \"<string>\",\n \"n\": 1,\n \"size\": \"<string>\",\n \"output_compression\": 50,\n \"user\": \"<string>\"\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.impossibl.com/v1/images/generations")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"model\": \"openai/gpt-image-2\",\n \"prompt\": \"<string>\",\n \"n\": 1,\n \"size\": \"<string>\",\n \"output_compression\": 50,\n \"user\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.impossibl.com/v1/images/generations")
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 \"model\": \"openai/gpt-image-2\",\n \"prompt\": \"<string>\",\n \"n\": 1,\n \"size\": \"<string>\",\n \"output_compression\": 50,\n \"user\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"created": 123,
"data": [
{
"b64_json": "<string>",
"revised_prompt": "<string>"
}
],
"usage": {
"total_tokens": 123,
"input_tokens": 123,
"output_tokens": 123,
"input_tokens_details": {
"text_tokens": 123,
"image_tokens": 123
}
}
}{
"error": {
"message": "`model` and `messages` are required",
"type": "invalid_request_error"
}
}{
"error": {
"message": "Invalid API key",
"type": "authentication_error"
}
}{
"error": {
"message": "Insufficient credits. Top up to continue.",
"type": "insufficient_quota"
}
}{
"error": {
"message": "Unknown model: foo/bar",
"type": "invalid_request_error"
}
}{
"error": {
"message": "permission-denied: ...",
"type": "upstream_error"
}
}{
"error": {
"message": "Provider not configured: missing OPENAI_API_KEY",
"type": "provider_not_configured"
}
}OpenAI-compatible image generation with openai/gpt-image-2. Returns
base64-encoded image bytes (never URLs). Billed per token — text input
plus image output tokens — from the prepaid balance; there is no BYOK
path for image generation yet.
curl --request POST \
--url https://api.impossibl.com/v1/images/generations \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"model": "openai/gpt-image-2",
"prompt": "<string>",
"n": 1,
"size": "<string>",
"output_compression": 50,
"user": "<string>"
}
'import requests
url = "https://api.impossibl.com/v1/images/generations"
payload = {
"model": "openai/gpt-image-2",
"prompt": "<string>",
"n": 1,
"size": "<string>",
"output_compression": 50,
"user": "<string>"
}
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({
model: 'openai/gpt-image-2',
prompt: '<string>',
n: 1,
size: '<string>',
output_compression: 50,
user: '<string>'
})
};
fetch('https://api.impossibl.com/v1/images/generations', 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.impossibl.com/v1/images/generations",
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([
'model' => 'openai/gpt-image-2',
'prompt' => '<string>',
'n' => 1,
'size' => '<string>',
'output_compression' => 50,
'user' => '<string>'
]),
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.impossibl.com/v1/images/generations"
payload := strings.NewReader("{\n \"model\": \"openai/gpt-image-2\",\n \"prompt\": \"<string>\",\n \"n\": 1,\n \"size\": \"<string>\",\n \"output_compression\": 50,\n \"user\": \"<string>\"\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.impossibl.com/v1/images/generations")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"model\": \"openai/gpt-image-2\",\n \"prompt\": \"<string>\",\n \"n\": 1,\n \"size\": \"<string>\",\n \"output_compression\": 50,\n \"user\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.impossibl.com/v1/images/generations")
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 \"model\": \"openai/gpt-image-2\",\n \"prompt\": \"<string>\",\n \"n\": 1,\n \"size\": \"<string>\",\n \"output_compression\": 50,\n \"user\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"created": 123,
"data": [
{
"b64_json": "<string>",
"revised_prompt": "<string>"
}
],
"usage": {
"total_tokens": 123,
"input_tokens": 123,
"output_tokens": 123,
"input_tokens_details": {
"text_tokens": 123,
"image_tokens": 123
}
}
}{
"error": {
"message": "`model` and `messages` are required",
"type": "invalid_request_error"
}
}{
"error": {
"message": "Invalid API key",
"type": "authentication_error"
}
}{
"error": {
"message": "Insufficient credits. Top up to continue.",
"type": "insufficient_quota"
}
}{
"error": {
"message": "Unknown model: foo/bar",
"type": "invalid_request_error"
}
}{
"error": {
"message": "permission-denied: ...",
"type": "upstream_error"
}
}{
"error": {
"message": "Provider not configured: missing OPENAI_API_KEY",
"type": "provider_not_configured"
}
}Gateway API key (imp-rt-...) from POST /v1/accounts or /v1/keys.
openai/gpt-image-2 Number of images to generate.
{width}x{height} (e.g. 1024x1024, 1536x1024) or auto.
auto, low, medium, high, standard, hd auto, transparent, opaque png, jpeg, webp JPEG/WebP only.
0 <= x <= 100Stable per-user id forwarded to the provider for abuse monitoring.
