Open Source Inpaint API — Remove Objects from Images

A production REST API for AI-powered image inpainting and object removal. One HTTP call removes any unwanted element — watermarks, logos, people, power lines, shadows, or price tags — and fills the gap with coherent background content. This is the open source inpaint API approach made available as a managed endpoint: all the quality, zero infrastructure. $0.005 per call — half the price of alternatives. 500 free credits, no credit card.

Quick start — open source inpaint API in one call

Sign up, copy your key from the dashboard, and POST your image. Optionally pass a mask (bounding box or binary mask image) or a text prompt describing what to erase. Poll until status=completed, then download the clean image.

curl -X POST https://api.pixelapi.dev/v1/image/remove-object \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "[email protected]" \
  -F "prompt=watermark in bottom-right corner"
# Response: {"generation_id": "uuid", "status": "queued"}

# Poll until completed
curl https://api.pixelapi.dev/v1/image/UUID \
  -H "Authorization: Bearer YOUR_API_KEY"
# Response: {"status": "completed", "output_url": "https://..."}

pip install pixelapi
---
from pixelapi import PixelAPI

client = PixelAPI(api_key="YOUR_API_KEY")
result = client.remove_object(
    image="product.jpg",
    prompt="remove the watermark in the bottom-right corner"
)
result.save("product_clean.jpg")

npm install pixelapi
---
import { PixelAPI } from "pixelapi";

const client = new PixelAPI({ apiKey: process.env.PIXELAPI_KEY });
const result = await client.removeObject({
  image: "./product.jpg",
  prompt: "remove the watermark in the bottom-right corner",
});
await result.save("product_clean.jpg");

composer require pixelapi/pixelapi
---
<?php
use PixelAPI\Client;

$client = new Client(getenv("PIXELAPI_KEY"));
$result = $client->removeObject([
    "image"  => "product.jpg",
    "prompt" => "remove the watermark in the bottom-right corner",
]);
file_put_contents("product_clean.jpg", $result->getBody());

gem install pixelapi
---
require "pixelapi"

client = PixelAPI::Client.new(api_key: ENV["PIXELAPI_KEY"])
result = client.remove_object(
  image: "product.jpg",
  prompt: "remove the watermark in the bottom-right corner"
)
File.binwrite("product_clean.jpg", result.body)

go get github.com/pixelapi/pixelapi-go
---
import "github.com/pixelapi/pixelapi-go"

client := pixelapi.New("YOUR_API_KEY")
result, err := client.RemoveObject(pixelapi.RemoveObjectParams{
    Image:  "product.jpg",
    Prompt: "remove the watermark in the bottom-right corner",
})
if err != nil { panic(err) }
result.Save("product_clean.jpg")

Pricing — the cheapest inpaint API by a wide margin

PixelAPI's per-call price is set at exactly half the cheapest publicly-verified rival per-image rate, per our standing pricing principle.

Pricing verified from each rival's public pricing page, May 2026. PixelAPI's per-call price is set at exactly half the cheapest verifiable rival per-unit cost.

What you get back

Common workflows

The Inpaint / Object Removal API is the backbone of these production workflows. Each links to a setup guide:

More use-case guides: all industries →

Integrations & SDKs

Comparison vs alternatives

Rate limits & error handling

Default 60 requests/minute on the free tier, 600 on paid tiers. Exceeding the limit returns HTTP 429 with a Retry-After header. Recommended: exponential backoff starting at 2s, doubling on each retry up to 30s. The Python and Node SDKs handle this automatically.

# Python SDK auto-retries 429 with backoff
from pixelapi import PixelAPI
client = PixelAPI(api_key="...", max_retries=4)
result = client.remove_object(
    image="bulk.jpg",
    prompt="remove the watermark"
)  # auto-retries on 429

Common error codes:

Frequently asked questions