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Leonardo.AI

Leonardo.AI is an Australian generative-AI company (acquired by Canva in July 2024) offering a Production API for AI image generation, video generation, 3D model creation, custom model and element training, realtime canvas editing, upscaling and variations, and Blueprint workflow execution. The platform supports in-house Leonardo models (Phoenix, Lucid Origin, Lucid Realism) and third-party models (FLUX.1/FLUX.2, Ideogram 3.0, GPT Image, Nano Banana, Seedream, Kling, LTX, Veo, Seedance, Hailuo, Rodin) under a unified pay-as-you-go dollar-denominated API surface with webhook callbacks, MCP server integration, and official Python and TypeScript SDKs.

agent native

Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.

Kin Score

API Evangelist profiles Leonardo.AI the way a machine reads it — 66 machine-readable artifacts across 14 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Leonardo.AI scores 66.2/100 (strong), with a separate agent-readiness read of 62/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 66.2/100 · strong
Contract Quality 20.1 / 25
Developer Ergonomics 12.2 / 20
Commercial Clarity 14.2 / 20
Operational Transparency 4.4 / 13
Governance 7.3 / 12
Discoverability 8.0 / 10
Agent readiness — 62/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile Leonardo.AI

Each block below is one kind of artifact we hold for Leonardo.AI. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 14

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

Leonardo.AI 3D Model Assets API

The 3D Model Assets API from Leonardo.AI — 3 operation(s) for 3d model assets.

Leonardo.AI Blueprints API

The Blueprints API from Leonardo.AI — 6 operation(s) for blueprints.

Leonardo.AI Dataset API

The Dataset API from Leonardo.AI — 4 operation(s) for dataset.

Leonardo.AI Elements API

The Elements API from Leonardo.AI — 3 operation(s) for elements.

Leonardo.AI Image API

The Image API from Leonardo.AI — 3 operation(s) for image.

Leonardo.AI Init Images API

The Init Images API from Leonardo.AI — 3 operation(s) for init images.

Leonardo.AI Media API

The Media API from Leonardo.AI — 2 operation(s) for media.

Leonardo.AI Models API

The Models API from Leonardo.AI — 4 operation(s) for models.

Leonardo.AI Motion API

The Motion API from Leonardo.AI — 3 operation(s) for motion.

Leonardo.AI Pricing Calculator API

The Pricing Calculator API from Leonardo.AI — 1 operation(s) for pricing calculator.

Leonardo.AI Prompt API

The Prompt API from Leonardo.AI — 2 operation(s) for prompt.

Leonardo.AI Realtime Canvas API

The Realtime Canvas API from Leonardo.AI — 4 operation(s) for realtime canvas.

Leonardo.AI User API

The User API from Leonardo.AI — 1 operation(s) for user.

Leonardo.AI Variation API

The Variation API from Leonardo.AI — 6 operation(s) for variation.

Scroll within the panel for all 14 ·

Open Collections 14

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Scroll within the panel for all 14 ·

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Leonardo Ai Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 19

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

Production API for image, video, 3D, and workflow generation under a unified dollar-denominated PAYG model
In-house Leonardo models — Phoenix, Lucid Origin, Lucid Realism — alongside third-party FLUX.1/FLUX.2, Ideogram 3.0, GPT Image 2, Nano Banana, Seedream
Video generation through Kling 2.x/3.x, LTX 2.x, Veo 3.x, Seedance, Hailuo, and Stable Video Diffusion motion models
3D model generation via Rodin V2 and 3D model asset management
Realtime Canvas powered by LCM (Latent Consistency Models) for sub-second iterative editing
Custom Models and Custom Elements — LoRA-style fine-tuning on user-uploaded datasets
Blueprints — pre-packaged multi-step generation workflows that can be executed via the API
PhotoReal, Alchemy, image prompts, image guidance (ControlNet), enhanced prompts, transparency
Universal Upscaler, unzoom (outpainting), creative upscale, and background-removal variations
Webhook callbacks for asynchronous job completion (no polling required)
Pricing Calculator endpoint for pre-flight cost estimation
Pay-As-You-Go billing in USD with manual and auto top-up, no monthly commitment, free starter credits
Concurrency, queue, and rate-limit controls scoped per API key
Production API key system (replaces deprecated User API key) — up to 10 keys per account
Official Python and TypeScript SDKs generated from the OpenAPI spec via Speakeasy
MCP Server integration for AI-agent workflows
Browser-side background-removal JS library and Blender texturing plugin available as open source
NSFW handling controls and per-model safety guardrails
Acquired by Canva July 2024; tech being integrated into Canva Magic Studio while the API remains independent

Scroll within the panel for all 19 ·

Event Specifications 1

Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Leonardo.AI Webhook Callbacks

AsyncAPI description of Leonardo.AI's outbound webhook callback surface. Leonardo delivers asynchronous job-completion notifications to a customer- hosted HTTPS endpoint that is...

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Leonardo Ai Context

0 classes · 7 properties

JSON-LD

Spectral Rules 3

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

Leonardo.AI API Rules

5 rules · 1 errors · 3 warnings

SPECTRAL

Leonardo.AI API Rules

6 rules · 4 warnings

SPECTRAL

Leonardo.AI API Rules

9 rules · 4 errors · 4 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Leonardo.AI Generation

0 properties

JSON SCHEMA

Leonardo.AI Model

0 properties

JSON SCHEMA

JSON Structure 1

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Leonardo Ai Generation Structure

0 properties

JSON STRUCTURE

Examples 5

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Leonardo Ai Authentication

http · 1 scheme

SECURITY

Leonardo Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Leonardo Ai Agentic Access

53 operations · 32 acting

53 operations · 32 acting

AGENTIC

Resources

Every other property we hold for Leonardo.AI — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Access & Security 2

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Company 4

The organization behind the API

Other 2

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/leonardo-ai · machine-readable index on apis.io