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 is listed with 1 API on the APIs.io network. Tagged areas include Collaboration, Whiteboard, Diagramming, Open Source, and Drawing.

Excalidraw’s developer surface includes engineering blog, documentation, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

15.9/100 emerging ▬ flat Agent 11/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive open core · MIT Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterprise

1 API 1 MCP Servers

Collaboration Whiteboard Diagramming Open Source Drawing

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 15.9/100 · emerging

Contract Quality 0.0 / 19

Developer Ergonomics 1.8 / 15

Access Clarity 0.8 / 15

Operational Transparency 2.6 / 10

Contract Governance 0.0 / 9

Discoverability 5.1 / 8

Regulatory Posture 0.9 / 15

Open Source Surface 5.0 / 10

Agent readiness — 11/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

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.

The six quality facets above are damped to 75 points between them, because both conditional facets apply and carry 25 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/excalidraw/"><img src="https://apis.io/badge/excalidraw/card.svg" alt="Excalidraw on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 5.3 — up to +18.9 composite points
Developer Ergonomics scores 11.9 — up to +17.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/excalidraw/apis.yml: open an issue on github.com/api-evangelist/excalidraw to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Raycast Store Extensions (first-party publishers + community-wrapped products)	covered	12.1 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

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 ...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Excalidraw MCP Server

Remote MCP server at mcp.excalidraw.com over HTTP; 5 tools listed.

MCP SERVER

Excalidraw API pricing

Not yet checked against Excalidraw's own pricing page. Compiled by API Evangelist on 2026-05-08 from excalidraw.com/; confirm before you rely on a figure.

Plan	Price
To Be Reconciled enterprise	—

Plan details, limits and sources →

Rate limits

Default: see provider documentation varies

Compiled by API Evangelist, not yet checked against Excalidraw's documentation. Rate-limit details →

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 4

The organization behind the API

Blog

Blog

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: open-core
  license: MIT
  license_evidence:
    repo: excalidraw/excalidraw
    spdx: MIT
    stars: 132875
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: medium
  source:
  - pricing
  - repository-license
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/excalidraw.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
tags:
- Collaboration
- Whiteboard
- Diagramming
- Open Source
- Drawing
tags_raw:
- Collaboration
- Whiteboard
- Diagramming
- Open Source
- Drawing
- Open-Source
created: '2026-05-08'
modified: '2026-10-06'
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:
- url: https://plus.excalidraw.com/blog
  type: Blog
- 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

Excalidraw API — frequently asked questions

Does Excalidraw have an API?

Yes. APIs.io lists 1 API from Excalidraw, including @excalidraw/excalidraw npm Package.

How much does the Excalidraw API cost?

APIs.io lists 1 pricing plan for Excalidraw, with each plan's price, limits and inclusions under Pricing on this page.

Does Excalidraw have an MCP server?

Yes. APIs.io lists 1 MCP server for Excalidraw: Remote MCP server at mcp.excalidraw.com over HTTP; 5 tools listed.

Is the Excalidraw API ready for AI agents?

Excalidraw has a Kin Score of 15.9 out of 100 (emerging) and an Agent Readiness score of 10.9 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/excalidraw"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/excalidraw/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/excalidraw/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.