Personalised story API

Add personalised books to your product.

One API for narrative, illustration and human creative review. Every customer detail shapes the story — and real designers refine it for free until it is ready to sell.

Explore the API
See a live story

First 5 books free Unlimited designer refinements ~2 business days

INPUTApproved
Example child profile for Noah
NoahAge 4 · en-US
Age4 years old FromBoston DreamGo to the Moon CompanionMilo the bunny Story styleMoonlit adventure Image styleSoft storybook
+2
A complete personalised Noah storybook spread created by Storytellrs
CREATIVE REVIEWLikeness consistent
HUMAN LOOPHuman reviewed
SAFETYBrand & IP safe
</>DELIVERYStructured JSON ready
design-request.sh
POST /v1/design-requests

{
  "child": { "first_name": "Noah" },
  "age": 4,
  "location": "Boston",
  "wish": "go_to_the_moon",
  "companion": "Milo",
  "images": ["img_01", "img_02"],
  "story_style": "moonlit_adventure",
  "illustration_style_id": "storybook_soft_01"
}
Request received202 Accepted
{
  "id": "story_82cd10",
  "status": "ready",
  "assets": {
    "cover_url": "https://cdn.storytellrs.ai/s/story_82cd10/cover.jpg",
    "pages_url": "https://cdn.storytellrs.ai/s/story_82cd10/pages.json"
  }
}
1Request2Generate3Human review4Ready

Proposed API · fields may change

Two ways to buy

Same creative engine. Choose how you take it to market.

Early access · manual approval · about 5 pilot partners. Endpoints below are for evaluating the integration, not a production multi-client tenant.

Built on MagicLabs production experience

10+years building personalised products
5M+personalised products sold
$133M+generated for a partner
150creative specialists
3M+hours invested in AI workflows
MagicLabs operating figures used to underwrite Storytellrs quality and delivery capacity.

From inputs to a finished story

One request.
A complete creative product.

Send approved customer details and images. Receive narrative, illustrations, layouts and review status as one coherent product — with unlimited refinements by real designers included.

01

Never a fixed template

Every detail shapes the plot, tone, story style and images.

02

Consistent likeness

A recognisable character across every scene.

Personalised Noah book spread showing designed illustration and page layout
03

Designed pages

Illustration, text and layout created together.

04

Unlimited refinements

Free API revisions handled by real designers.

Why Storytellrs

A generated book is the baseline.
We build the story worth keeping.

Compare the same Noah brief at two levels of execution. Storytellrs brings story direction, art direction, character consistency, designed layouts and human creative review into one production system.

Industry-standard personalised Noah book for comparisonBASELINEIndustry standard
Storytellrs Noah book with richer story and visual directionSTORYTELLRS SYSTEM Storytellrs finish
Same child · same Moon briefDrag to compare the finished books ↔

Beyond generationWhat changes in the finished product

01

Generic child likenessNoah and Milo feel recognisable throughout

02

A template plot with inserted detailsStory direction built from the child’s world

03

Illustration and text assembled separatelyNarrative, art direction and layout designed together

04

Generation as the finish lineHuman creative review before delivery

See the live US product

How it works

From API request
to reviewed story.

Asynchronous by design. No long-running client requests. Typical first delivery: about 2 business days. Typical revision: same day to 1 business day.

  1. 01

    Send the design request

    Provide child information, approved images, locale, product format and style. You receive 202 Accepted with a request ID immediately.

    { child: "Noah", style: "soft" }POST
  2. 02

    We orchestrate the creative workflow

    Storytellrs selects the right models and workflows for narrative, character, illustration and layout.

    StoryCharacterLayout
  3. 03

    Quality and safety checks run

    Automated checks and trained specialists review likeness, tone, visual quality and brand rules.

    ✓ Likeness✓ Narrative✓ Brand
  4. 04

    Receive the ready event

    Your webhook receives structured story data and secure delivery URLs — typically within about 2 business days for a new design.

    story.ready200 OK

Built for developers

A small API surface for a complex creative workflow.

Early access: we onboard about 5 pilot partners by hand. The endpoints below are listed so you can evaluate the integration — not a production multi-client tenant. Keys after review. No self-serve signup, dashboard, or client isolation.

Early access · manual approval

Quickstart

From API key to first story

Authenticate, create a design request, wait for the webhook (or poll status), then request free refinements when needed.

  1. Authenticate Send Authorization: Bearer $STORYTELLRS_API_KEY on every request. Keys are issued after manual approval of your access request.
  2. Create asynchronously POST /v1/design-requests returns 202 with id and status: "queued". Do not wait on a long HTTP connection.
  3. Track status Statuses move queuedgeneratingin_reviewready (or needs_input / failed). Prefer webhooks; poll GET /design-requests/:id as a fallback.
  4. Handle the webhook Verify the signature, then handle story.ready. Fetch the structured story with GET /stories/:id.
  5. Refine for free POST /design-requests/:id/revisions sends instructions to real designers. Revisions do not consume your free or paid completed-design allowance.
  6. Idempotency & errors Pass Idempotency-Key on create and revision to avoid duplicates. Expect 401 auth, 422 validation, 429 rate limit, 409 conflict on stale revisions.

Indicative turnaround during early access: ~2 business days for a new completed design · same day to 1 business day for a revision.

● 202Response

Proposed API · fields may change

A child reading with the MagicLabs creative team in BhutanTone Visual craft Brand rules

Creative review complete

Approved for delivery
  • Likeness consistent Passed
  • Age-appropriate narrative Passed
  • Brand profile: Partner 024 Applied
Today, 16:48 · Reviewer ML-118

Powered by technology. Crafted by humans.

Human judgement where your brand needs it most.

Our systems automate the heavy lifting. Trained creative specialists review the details that determine whether a story feels polished, coherent and safe to publish.

  • LikenessRecognisable and consistent characters
  • NarrativeCoherent, age-appropriate and emotionally right
  • Visual craftProduction-ready compositions, faces and layouts
  • Brand & contentApproved rules, permissions and safety checks

Our in-house creative team in Bhutan brings human care and judgement to every production workflow.

Children’s data & privacy

Built for partners who handle family data carefully.

When images of children enter the workflow, responsibilities stay clear. You collect consent; we process only what is needed to deliver the story.

Partner consent

You obtain and record parental or guardian consent before uploading child images or personal details. Storytellrs processes data as your production processor for story creation.

Encryption

Images and payloads are encrypted in transit (TLS) and at rest. Access inside production systems is limited to the people and services required for generation and review.

Retention & deletion

Production assets are retained for delivery, revision and invoicing support, then deleted on a defined schedule or earlier on partner request for a specific story or account.

Subprocessors

Generation models and secure infrastructure providers support orchestration. Human creative review is performed by trained MagicLabs specialists under the same confidentiality controls.

Hosting region

Primary production systems run in the EU (Ireland) with optional US processing for partners who require it. Region selection is confirmed during onboarding.

No model training on your photos

Customer-uploaded child photos and partner brand assets are not used to train foundation models. They are used only to fulfil design requests and revisions for your account.

Full DPA and security pack available during access review. Privacy FAQ ↓

Your brand, your story world

Five starter styles.
Custom systems when you need them.

Start with a direction that fits age, purchase context and format. If your brand needs a new visual language, we scope a custom style with an explicit setup fee.

White-label by design Storytellrs stays behind the scenes. Your customers experience your brand, checkout and relationship from start to finish.

Live US product

Already in market, with 40% purchase conversion.

01 · Problem Families want a story made for their child

The live US product sells personalised storybooks. Template plots with swapped names were not enough to turn previews into purchases.

02 · Inputs Name, dream, place, companion, photos

Families answer a short questionnaire and upload approved images — every detail shapes direction, narration and illustration.

03 · Storytellrs Creative system + unlimited refinements

We orchestrate narrative and art, run human review, and refine free via the API until the story is ready to sell.

04 · Result 40% of requests convert to a purchase

About 4 in 10 families who start a story request go on to buy the finished book — not a relative lift, an absolute conversion rate.

“Families recognise their child in the finished book — that is what turns a preview into a purchase.”

Storytellrs · live US product
Every detail shapes the storyStory direction, writing style and imagery respond to every input — not fixed plots with fields swapped in.
Unlimited refinements by real designers, includedFree retouches via the API, completed by real designers.
40% conversion rate = share of story requests that result in a book purchase on the live US product. Not a +40% relative improvement vs a prior baseline.
Purchase conversion40%

of story requests buy a book

1
Storytellrs live US landing

Partner storefront

Families start on the live US product.

2
Creative review

Storytellrs creates

Design, orchestration and quality review.

3
Finished personalised Storytellrs Noah book

Customer buys

A complete story, ready to preview and purchase.

Clear integration boundaries

You grow the brand.
We run the creative engine.

Launch a new personalised product without rebuilding the production stack behind it.

Y

You own

  • Customer acquisition
  • Brand and storefront
  • Merchandising and pricing
  • Checkout and payment
  • Customer communications
  • Customer data policy & consent
Partner storefrontFinished story

Storytellrs powers

  • Story and visual design
  • Creative orchestration
  • Consistency checks
  • Human creative review
  • Brand and safety controls
  • JSON and delivery assets

Pricing

Start free. Pay only for designs completed.

Your first 5 books are free. After that, each completed design is $4. Unlimited refinements by real designers are included on every design. A new direction or new brief starts a new completed design.

Starter

Free

Your first 5 books free
  • Request access with your work email
  • API key after manual review
  • Starter design styles
  • Unlimited free revisions on each design
  • No credit card required

Volume

Custom

For larger programs
  • Higher volume pricing
  • Dedicated or custom style systems
  • Setup fee scoped for new design directions
  • Integration and launch support
What counts as a completed design
  • Example 1 — billed once. New Noah Moon brief in Soft Storybook → first ready delivery = 1 completed design ($0 if within your first 5 free books, else $4).
  • Example 2 — free. Three revision requests (“make Milo larger”, “soften the ending”, “brighter cover”) on that same design = $0. Retouches are unlimited.
  • Example 3 — new design. Same child but a new Watercolour Classic direction / new brief = +1 completed design. A new visual direction or narrative brief starts a new billable unit.
Simple by design Your first 5 completed designs (books) are free. After that we invoice completed designs monthly — revisions never count toward the free allowance or the $4 fee. Pricing questions ↓

Developer experience

Quickstart and examples, no password required.

A focused quickstart and sample request/response, without exposing the production backend.

FAQ

The practical details.

Still evaluating the fit? Talk to us about your product, volume and brand requirements.

What does Storytellrs API create?+

Deeply personalised books and stories from structured customer inputs and approved images, delivered as structured story JSON and production assets. A hosted viewer is available on the white-label path.

How is it different from using AI models directly?+

Storytellrs combines model orchestration, creative production workflows, consistency checks, brand controls and human review. You receive a finished creative product rather than raw outputs — with unlimited refinements by real designers included.

Are the stories based on fixed templates?+

No. Each approved detail can shape the story direction, tone, writing style, scenes and imagery. Our team applies the narrative and conversion experience learned from producing personalised stories in market, so the result feels intentionally made for the child rather than assembled from interchangeable fields.

What if a story or design needs changes?+

Retouches are free and unlimited on an existing design. Request revisions through POST /design-requests/:id/revisions and real designers will refine the story, illustration or layout. A new direction or new brief creates a new completed design.

What counts as a completed design for billing?+

A completed design is the first approved delivery of a new brief. Example: Noah’s Moon story in Soft Storybook = 1 design. Three free retouches on that story = $0. Restarting the same child in Watercolour Classic (new direction) = +1 design. Your first 5 books free count these completed designs, not revisions.

Is the experience white-label?+

Two paths: API only (JSON + assets, you keep checkout) or white-label (same engine plus a hosted viewer). A hosted cart is scoped — talk to us if you need it. You keep the customer relationship and brand experience.

How do billing and free designs work?+

Your first 5 completed designs (books) are free. After that, completed designs are billed at $4 each. Revisions never consume the free allowance. During early access, we review usage and send a monthly invoice instead of charging automatically.

Do I need an account before using the API?+

Request access with your work email. We reply within 1 business day, review the request by hand, and share credentials after approval. There is no self-serve signup and no instant API key.

How long does a story take to create?+

Creation is asynchronous. The API returns a request ID immediately and a webhook notifies your system when the story is ready. Indicative early-access turnaround: about 2 business days for a new completed design, and same day to 1 business day for a revision.

How does human review work?+

Automated checks and trained creative specialists review the areas that most affect quality and brand safety, including likeness, consistency, tone, visual craft and approved brand rules.

How are uploaded images and children's data handled?+

Partners obtain parental or guardian consent before upload. We encrypt data in transit and at rest, retain assets only for delivery, revision and billing support, delete on schedule or request, host primarily in the EU (Ireland) with optional US processing, and do not use customer-uploaded child photos to train foundation models. See Children’s data & privacy.

Your customers. Your brand. Our creative engine.

Build a story your customers will keep.

Add personalised books and stories to your product with one API. Request access, we onboard you by hand, then your first 5 books are free — $4 per completed design after that, with unlimited designer refinements included.

Early access

Request API access.

We onboard partners by hand and reply within 1 business day. Keys are issued after review — not instantly. First 5 books free, then $4 per completed design.

Offer
Manual onboarding. We reply within 1 business day. Keys after review.