import { readFile } from "node:fs/promises";

const form = new FormData();
form.append("file", new Blob([await readFile("tile.png")]), "tile.png");
form.append("repeat", "straight");

const response = await fetch("https://makeseamless.com/v1/fix", {
  method: "POST",
  headers: { "x-api-key": "smls_your_api_key" },
  body: form,
});

const data = await response.json();
console.log(data);

<?php

$ch = curl_init("https://makeseamless.com/v1/fix");
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "x-api-key: smls_your_api_key",
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, [
    "file" => new CURLFile("tile.png"),
    "repeat" => "straight",
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;

import requests

with open("tile.png", "rb") as file:
    response = requests.post(
        "https://makeseamless.com/v1/fix",
        headers={"x-api-key": "smls_your_api_key"},
        files={"file": file},
        data={"repeat": "straight"},
    )

response.raise_for_status()
print(response.json())

require "net/http"
require "uri"

uri = URI("https://makeseamless.com/v1/fix")
request = Net::HTTP::Post.new(uri)
request["x-api-key"] = "smls_your_api_key"
request.set_form(
  [
    ["file", File.open("tile.png")],
    ["repeat", "straight"],
  ],
  "multipart/form-data",
)

response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts response.body

package main

import (
	"bytes"
	"fmt"
	"io"
	"mime/multipart"
	"net/http"
	"os"
)

func main() {
	var payload bytes.Buffer
	form := multipart.NewWriter(&payload)
	file, err := os.Open("tile.png")
	if err != nil {
		panic(err)
	}
	defer file.Close()
	part, err := form.CreateFormFile("file", "tile.png")
	if err != nil {
		panic(err)
	}
	if _, err := io.Copy(part, file); err != nil {
		panic(err)
	}
	form.WriteField("repeat", "straight")
	form.Close()

	req, err := http.NewRequest("POST", "https://makeseamless.com/v1/fix", &payload)
	if err != nil {
		panic(err)
	}
	req.Header.Set("x-api-key", "smls_your_api_key")
	req.Header.Set("Content-Type", form.FormDataContentType())

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	body, _ := io.ReadAll(res.Body)
	fmt.Println(string(body))
}

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;

String boundary = "makeseamless-form";
List<byte[]> parts = new ArrayList<>();
parts.add(("--" + boundary + "\r\n"
    + "Content-Disposition: form-data; name=\"file\"; filename=\"tile.png\"\r\n\r\n")
    .getBytes(StandardCharsets.UTF_8));
parts.add(Files.readAllBytes(Path.of("tile.png")));
parts.add("\r\n".getBytes(StandardCharsets.UTF_8));
parts.add(("--" + boundary + "\r\n"
    + "Content-Disposition: form-data; name=\"repeat\"\r\n\r\n"
    + "straight\r\n").getBytes(StandardCharsets.UTF_8));
parts.add(("--" + boundary + "--\r\n").getBytes(StandardCharsets.UTF_8));

HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://makeseamless.com/v1/fix"))
    .header("x-api-key", "smls_your_api_key")
    .header("Content-Type", "multipart/form-data; boundary=" + boundary)
    .POST(HttpRequest.BodyPublishers.ofByteArrays(parts))
    .build();

HttpResponse<String> response = HttpClient.newHttpClient()
    .send(request, HttpResponse.BodyHandlers.ofString());

System.out.println(response.body());

using System.Net.Http;

var request = new HttpRequestMessage(HttpMethod.Post, "https://makeseamless.com/v1/fix");
request.Headers.Add("x-api-key", "smls_your_api_key");
var form = new MultipartFormDataContent();
form.Add(new ByteArrayContent(File.ReadAllBytes("tile.png")), "file", "tile.png");
form.Add(new StringContent("straight"), "repeat");
request.Content = form;

var client = new HttpClient();
var response = await client.SendAsync(request);

Console.WriteLine(await response.Content.ReadAsStringAsync());

curl -X POST "https://makeseamless.com/v1/fix" \
  -H "x-api-key: smls_your_api_key" \
  -F "file=@tile.png" \
  -F "repeat=straight"

{
  "id": "job_2432c1827f32450f800694e552e9915c",
  "status": "queued",
  "stage": "queued",
  "repeat": "straight",
  "cached": false,
  "input": {
    "sha256": "9cf95d486b4c7d1bd6022a3e51d7c89b89ba5239d0378033c9a9f53413dd7770",
    "width": 256,
    "height": 256,
    "format": "PNG",
    "has_alpha": true
  },
  "created_at": "2026-11-03T15:24:08.435Z",
  "started_at": null,
  "finished_at": null,
  "result": null,
  "error": null,
  "candidates": []
}