Excalidraw

Excalidraw is an MIT-licensed virtual whiteboard with a hand-drawn aesthetic. Primary surfaces are the hosted web app at excalidraw.com and the @excalidraw/excalidraw npm package for embedding the canvas in other apps. There is no public REST API. Excalidraw+ is the commercial managed offering.

Excalidraw publishes 1 API on the APIs.io network. Tagged areas include Collaboration, Whiteboard, Diagramming, Open-Source, and Drawing.

Excalidraw’s developer surface includes documentation, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

15.3/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Collaboration Whiteboard Diagramming Open-Source Drawing

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 15.3/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 2.4 / 20

Access Clarity 2.6 / 20

Operational Transparency 3.4 / 13

Contract Governance 0.0 / 12

Discoverability 6.9 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/excalidraw: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

@excalidraw/excalidraw npm Package

The official React component package for embedding the Excalidraw canvas. Provides programmatic control over scene state, libraries, and serialized JSON. There is no Excalidraw ...

Pricing Plans 1

Published pricing tiers and plan structures.

Excalidraw Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Excalidraw Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Excalidraw Finops

FINOPS

Security Posture 1

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

Excalidraw Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

SourceCode

SourceCode

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

License

License

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Excalidraw+

CommercialOffering

Source (apis.yml)

aid: excalidraw
url: https://raw.githubusercontent.com/api-evangelist/excalidraw/refs/heads/main/apis.yml
name: Excalidraw
kind: opensource
description: Excalidraw is an MIT-licensed virtual whiteboard with a hand-drawn aesthetic. Primary surfaces are the hosted
  web app at excalidraw.com and the @excalidraw/excalidraw npm package for embedding the canvas in other apps. There is no
  public REST API. Excalidraw+ is the commercial managed offering.
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/excalidraw.png
tags:
- Collaboration
- Whiteboard
- Diagramming
- Open-Source
- Drawing
tags_raw:
- Collaboration
- Whiteboard
- Diagramming
- Open Source
- Drawing
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.23'
apis:
- aid: excalidraw:excalidraw-npm-package
  name: '@excalidraw/excalidraw npm Package'
  humanURL: https://docs.excalidraw.com/
  baseURL: npm package (no network endpoint)
  tags:
  - SDK
  - React
  - Library
  description: The official React component package for embedding the Excalidraw canvas. Provides programmatic control over
    scene state, libraries, and serialized JSON. There is no Excalidraw REST API; integrations are component-level.
  properties:
  - type: Documentation
    url: https://docs.excalidraw.com/
  - type: SourceCode
    url: https://github.com/excalidraw/excalidraw
  - type: NPM
    url: https://www.npmjs.com/package/@excalidraw/excalidraw
common:
- type: IssueTracker
  url: https://github.com/excalidraw/excalidraw/issues
- type: Releases
  url: https://github.com/excalidraw/excalidraw/releases
- type: ContributionGuide
  url: https://github.com/excalidraw/excalidraw/blob/master/CONTRIBUTING.md
- type: DomainSecurity
  url: security/excalidraw-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/excalidraw
- type: Website
  url: https://excalidraw.com/
- type: Documentation
  url: https://docs.excalidraw.com/
- type: SourceCode
  url: https://github.com/excalidraw/excalidraw
- type: License
  url: https://github.com/excalidraw/excalidraw/blob/master/LICENSE
- type: CommercialOffering
  title: Excalidraw+
  url: https://plus.excalidraw.com/
- type: Plans
  url: plans/excalidraw-plans-pricing.yml
- type: RateLimits
  url: rate-limits/excalidraw-rate-limits.yml
- type: FinOps
  url: finops/excalidraw-finops.yml
- type: Blog
  url: https://plus.excalidraw.com/feed.xml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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