Generate designs, not images

One API call. Layered, editable, on-brand output. Real text you can click and change. Every element on its own layer. Not a template fill. Not a flat image from a diffusion model. A complete design your users can actually work with. Sivi gives you three ways to add a design API to your product: a REST API for backend automation, an SDK that drops a full design studio into your frontend, and an MCP server that lets any AI agent generate designs.

116,000 Brands |

Sivi Product Review

4.7/5

| 72+ Languages

Sivi awards

Generate designs, not images

One API call. Layered, editable, on-brand output. Real text you can click and change. Every element on its own layer. Not a template fill. Not a flat image from a diffusion model. A complete design your users can actually work with. Sivi gives you three ways to add a design API to your product: a REST API for backend automation, an SDK that drops a full design studio into your frontend, and an MCP server that lets any AI agent generate designs.

116,000 Brands

Sivi Product Review

4.7/5

72+ Languages

Sivi awards

Generate designs, not images

One API call. Layered, editable, on-brand output. Real text you can click and change. Every element on its own layer. Not a template fill. Not a flat image from a diffusion model. A complete design your users can actually work with. Sivi gives you three ways to add a design API to your product: a REST API for backend automation, an SDK that drops a full design studio into your frontend, and an MCP server that lets any AI agent generate designs.

116,000 Brands |

Sivi Product Review

4.7/5

| 72+ Languages

Sivi awards

Generate designs, not images

One API call. Layered, editable, on-brand output. Real text you can click and change. Every element on its own layer. Not a template fill. Not a flat image from a diffusion model. A complete design your users can actually work with. Sivi gives you three ways to add a design API to your product: a REST API for backend automation, an SDK that drops a full design studio into your frontend, and an MCP server that lets any AI agent generate designs.

116,000 Brands |

Sivi Product Review

4.7/5

| 72+ Languages

Sivi awards
Sivi's Large Design Model composes designs element by element. Text stays as text. Vectors stay as vectors. The output is a design file, not a frozen screenshot.

Sivi's Large Design Model composes designs element by element. Text stays as text. Vectors stay as vectors. The output is a design file, not a frozen screenshot.

Sivi's Large Design Model composes designs element by element. Text stays as text. Vectors stay as vectors. The output is a design file, not a frozen screenshot.

Sivi's Large Design Model composes designs element by element. Text stays as text. Vectors stay as vectors. The output is a design file, not a frozen screenshot.

Three products, one engine

Sivi has been the Large Design Model category creator.

Sivi API

For backend integration and automated pipelines.


Send a JSON request with your text prompt, content, brand kit, and output size. Get back a multi-layered design with every element individually addressable. Export as JSON, HTML, JPG, PNG, or PDF.


Best for: bulk generation, automated workflows, scheduled campaigns, server-side processing.

Sivi SDK

For user-facing design experiences.


Embed a complete design generator and editor inside your product. Your users type a prompt, get a design, edit any element, and export. White-label the entire experience with your brand colors, fonts, and logo.


Best for: client portals, SaaS embeds, seller dashboards, team design tools.

Sivi MCP

For AI agents and agentic workflows.


Connect any AI agent to Sivi through the Model Context Protocol. Your agent calls Sivi as a tool, generates layered designs mid-conversation, and returns results to the user. No custom integration code. Works with Claude, ChatGPT, Cursor, Windsurf, and any MCP-compatible client.


Best for: AI assistants, agentic workflows, copilot features, chat-based design generation.

The API is headless. You control the UI. The SDK is a drop-in design studio. You control the branding. Use one or both depending on your product.

The API is headless. You control the UI. The SDK is a drop-in design studio. You control the branding. Use one or both depending on your product.

The API is headless. You control the UI. The SDK is a drop-in design studio. You control the branding. Use one or both depending on your product.

The API is headless. You control the UI. The SDK is a drop-in design studio. You control the branding. Use one or both depending on your product.

What the output looks like

Other APIs return flat images or filled templates. Here's what changes when you integrate a design API instead.

Sivi Design API

Sivi Design API

Image APIs

Image APIs

Template APIs

Template APIs

What your users get

What your users get

Layered design file with separate, movable elements

Layered design file with separate, movable elements

Single flat image, no layers

Single flat image, no layers

Filled copy of a fixed layout

Filled copy of a fixed layout

Your maintenance

Your maintenance

Zero templates. Model generates layouts

Zero templates. Model generates layouts

Prompt-tuning per use case

Prompt-tuning per use case

Build and update every template

Build and update every template

User editing

User editing

Full - move, change, delete any element

Full - move, change, delete any element

None

None

Constrained

Constrained

Brand control

Brand control

Enforced from your brand kit automatically

Enforced from your brand kit automatically

No brand awareness

No brand awareness

Manual setup per template

Manual setup per template

Creative variety

Creative variety

Original composition every time, any size, 72+ languages

Original composition every time, any size, 72+ languages

Fixed aspect ratios, English-centric

Fixed aspect ratios, English-centric

One layout per template, manual sizing

One layout per template, manual sizing

Scale to new sizes

Scale to new sizes

Any dimension

Any dimension

Retrain or crop

Retrain or crop

New template per size

New template per size

Scale to new languages

Scale to new languages

72+ languages

72+ languages

English-centric

English-centric

Depends on template

Depends on template

Over 80% of enterprise marketing teams say brand consistency is a top priority, yet most AI APIs return flat images with no brand enforcement at all. Source: Lucidpress

Over 80% of enterprise marketing teams say brand consistency is a top priority, yet most AI APIs return flat images with no brand enforcement at all. Source: Lucidpress

Over 80% of enterprise marketing teams say brand consistency is a top priority, yet most AI APIs return flat images with no brand enforcement at all. Source: Lucidpress

Over 80% of enterprise marketing teams say brand consistency is a top priority, yet most AI APIs return flat images with no brand enforcement at all. Source: Lucidpress

Built for your platform

Sivi's design API automates design creation within platforms. Instead of relying on templates, Sivi uses its Large Design Model to produce fresh, professional layouts instantly. Each integration looks different. Here's what it looks like for yours.

Ecommerce platforms

Auto-generate product banners, category headers, and sale creatives for thousands of SKUs. One API call per product. Feed in your product data, get back layered banners.

Agencies

Build a white-label design studio for your clients. Each client gets their own portal with their brand kit. They self-serve on-brand designs within your guardrails.

LLM and AI products

Your AI agent writes the copy. Sivi composes the matching visual. Chain text generation and design generation in the same workflow. Use the MCP server so your agent calls Sivi directly as a tool, no glue code needed.

Ad platforms

Your users stay in-platform at the creative stage. They generate ad creatives instantly instead of dropping off to design somewhere else. All IAB sizes. A/B variations on demand.

Social media platforms

Users generate branded social posts, stories, and reels covers without switching to an external tool. Every post matches their brand kit.

Enterprise

Brand governance at scale. The API enforces your brand kit across thousands of creatives, 72 languages, any channel. The SDK gives regional teams self-serve access.

Website builders

Add a Generate Banner button to your page editor. Hero banners, hello bars, blog covers, on demand.

Media and content companies

Automate daily content production. Generate professional marketing designs in 72+ languages at publishing speed.

Email marketing platforms

Generate email headers and newsletter visuals that match the campaign content. Output exports as HTML.

Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Get started in 5 minutes

  1. Sign up at instant.sivi.ai and get your API key.

  2. Make your first API call. Two input modes are available: Designs from Prompt or Designs from Content.

  3. Explore the output. The response includes an array of variant objects containing URLs and links to an anonymous design studio where you can view, edit, and export the generated designs.

  4. Decide your integration path. API only? SDK embed? MCP for your AI agent? Mix and match. Pick the plan that fits.

import requests

response = requests.post(
    "https://connect.sivi.ai/api/prod/v2/general/designs-from-prompt",
    headers={"sivi-api-key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
        "type": "displayAds",
        "subtype": "displayAds-half-page-ad",
        "dimension": {"width": 300, "height": 600},
        "prompt": "generate a design for my t-shirt shop for summer campaign with 20% off",
        "assets": {
            "images": [],
            "logos": []
        },
        "language": "english",
        "numOfVariants": 4,
        "outputFormat": ["jpg", "png"],
        "settings": {
            "mode": "custom",
            "colors": ["#005C99", "#00BFA6", "#333333", "#F0F0F0"]
        }
    }
)

result = response.json()
design_id = result["body"]["designId"]

# Step 3: Retrieve the generated design variants
variants_response = requests.post(
    "https://connect.sivi.ai/api/prod/v2/general/get-design-variants",
    headers={"sivi-api-key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
        "designId": design_id,
        "type": "generated",
        "limit": 10
    }
)

variants = variants_response.json()
for v in variants["body"]["variations"]:
    print(f"Variant: {v['variantId']}")
    print(f"Image: {v['variantImageUrl']}")
    print(f"Edit: {v['variantEditLink']}")
Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Agencies using a design API report up to 10x increase in creative output without proportional headcount growth. Source: Forrester

Common questions about the design API, SDK, and MCP

What is a design API?

A design API takes a text prompt, brand assets, and size specifications as input and returns a structured, multi-layered design as output. Every element (text, images, vectors, backgrounds) exists on its own layer and can be edited independently. It is different from an image generation API (which returns flat pixels) and a template API (which fills pre-made layouts). Read the full guide.

Is this a template-based system?

No. Every design is generated from scratch by Sivi's Large Design Model. No templates to build, manage, or maintain.

How to integrate Sivi API in your website or app?

Choose from client SDK, server APIs, or a mix of both. The SDK embeds a design studio in your frontend. The Core Design API gives you backend control. Most teams get up and running in as little as 60 minutes.

How is Sivi's design API different from image generation APIs?

Image generation APIs return flat pixels with no layers and no editable text. Sivi returns structured design files where every element is individually editable.

Can I use the API, SDK, and MCP together?

Yes. Many integrators use the API for high-volume automated generation (batch product banners, scheduled social posts), the SDK for interactive, user-initiated design (client self-serve, on-demand creation), and the MCP server so their AI agents can generate designs as part of agentic workflows.

Do I need the SDK, the MCP server, or is the API enough?

The API includes an anonymous design studio link for every generated design, your users can open it and edit the output (move elements, change text, export). What they cannot do with the API alone is work with the prompt or update the input. If your users need to generate designs themselves, control prompts, and manage the full input-to-output flow inside your product, you need the SDK. If you're building an AI agent or copilot that should generate designs as a tool call, use the MCP server.

What is the Sivi MCP server?

An MCP server that lets AI agents call Sivi as a tool during conversations and agentic workflows. Compatible with Claude, ChatGPT, Cursor, Windsurf, and other MCP clients.

What user management API options are available?

Three options: redirect users to create Sivi accounts, manage users programmatically via the API, or embed fully so users never leave your platform. User management docs

What enterprise API integration features are available?

White-labeling, custom themes, staging environments, dedicated support, custom feature development, and influence on the roadmap. Talk to sales

How is data secured during API interactions?

All API traffic is encrypted. Brand assets and generated designs are isolated per account and never used for model training.

Do I own the designs generated through the API?

Yes. Full IP rights stay with you. Sivi claims no ownership over your generated output or brand assets.

What languages are supported?

72+ languages including RTL scripts like Arabic, Hebrew, and Urdu. The layout is re-composed per language, not just text-swapped. Supported languages

Start building with Sivi's design API

Get API access and start integrating a design API into your application.

Try the sandbox free. Read the docs. Or talk to our team about your integration.

Save 200+ development hours by integrating Sivi's design API.

Save 200+ development hours by integrating Sivi's design API.

Save 200+ development hours by integrating Sivi's design API.

Save 200+ development hours by integrating Sivi's design API.

What business owners, marketers, AI enthusiasts, and designers say about Sivi

  • Sivi AI - 5 star rating

    I like how the prompt wizard is created. Generate process is cool. I like the approach when you actually see what is going on, instead of looking at some spinner for X minutes and be not sure if it is still processing or it is freezing. Simple and easy to use Edit mode. This is really cool product.

    Sivi review by George Frigo

    George Frigo

    Lead product designer

  • Sivi AI - 5 star rating

    Sivi.ai is an impressive tool that can significantly speed up your design workflow. Its ability to generate visuals in a variety of dimensions and the option to edit the designs make it a versatile option for anyone in need of appealing designs.

    Sivi review by Max Yampolsky

    Max Yampolsky

    Founder @ One Click Crypto

  • Sivi AI - 5 star rating

    🎊 Really great tool, game-changer that disrups a huge market and everything connected with design and content creation.

    Sivi review by Anna Svirshchevskaya

    Anna Svirshchevskaya

    Product owner at @Paige

  • Five star review for Sivi AI by Pradeep Soundararajan

    I am an early beta user of Sivi and I love its present and future. I love the deep thought the team has put in it to understand the design process and making it business owner savvy. This is transformational for our GTM to help us quickly have multiple options in design for our messaging.

    Sivi review by Pradeep Soundarrajan

    Pradeep Soundararajan

    Founder CEO of Bugasura.io

  • Sivi AI - 5 star rating

    As per the tool - I've been looking for along time when there will be an AI tool to generate design from text with a user-friendly interface. And it seems like this is the one!

    Sivi review by Oleksandr Naumov

    Oleksandr Naumov

    Marketer

  • Sivi AI - 5 star rating

    Loved the idea of providing a prompt template to help new users get the most out of their first tries! I was surprised by how complete this product is, being able to edit the content and the visuals separately is a really good idea.

    Sivi review by Florian Myter

    Florian Myter

    Co-Founder weave.ly

116,000 Business Users |

Sivi AI Product Review

4.7/5

What business owners, marketers, AI enthusiasts, and designers say about Sivi

  • Sivi AI - 5 star rating

    I like how the prompt wizard is created. Generate process is cool. I like the approach when you actually see what is going on, instead of looking at some spinner for X minutes and be not sure if it is still processing or it is freezing. Simple and easy to use Edit mode. This is really cool product.

    Sivi review by George Frigo

    George Frigo

    Lead product designer

  • Sivi AI - 5 star rating

    Sivi.ai is an impressive tool that can significantly speed up your design workflow. Its ability to generate visuals in a variety of dimensions and the option to edit the designs make it a versatile option for anyone in need of appealing designs.

    Sivi review by Max Yampolsky

    Max Yampolsky

    Founder @ One Click Crypto

  • Sivi AI - 5 star rating

    🎊 Really great tool, game-changer that disrups a huge market and everything connected with design and content creation.

    Sivi review by Anna Svirshchevskaya

    Anna Svirshchevskaya

    Product owner at @Paige

  • Five star review for Sivi AI by Pradeep Soundararajan

    I am an early beta user of Sivi and I love its present and future. I love the deep thought the team has put in it to understand the design process and making it business owner savvy. This is transformational for our GTM to help us quickly have multiple options in design for our messaging.

    Sivi review by Pradeep Soundarrajan

    Pradeep Soundararajan

    Founder CEO of Bugasura.io

  • Sivi AI - 5 star rating

    As per the tool - I've been looking for along time when there will be an AI tool to generate design from text with a user-friendly interface. And it seems like this is the one!

    Sivi review by Oleksandr Naumov

    Oleksandr Naumov

    Marketer

  • Sivi AI - 5 star rating

    Loved the idea of providing a prompt template to help new users get the most out of their first tries! I was surprised by how complete this product is, being able to edit the content and the visuals separately is a really good idea.

    Sivi review by Florian Myter

    Florian Myter

    Co-Founder weave.ly

35,000 Business Users

Sivi Product Review

4.7/5

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Copyright © 2020-24 HelloSivi Software Labs

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Copyright © 2020-24 HelloSivi Software Labs

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