The API Report CardAPI Index
SmartDraw

SmartDraw API

Diagramming, whiteboarding & data visualization (Visio/Lucidchart alternative) · smartdraw.com

SmartDraw's Open API is a client-side JavaScript SDK that emits VSON diagram markup, not a hosted REST service. There are no endpoints for reading or updating stored diagrams, no OAuth or API key flow, and no webhooks. The SDK downloads free under MPL 2.0, without technical support.

Last verified: July 2026Software & Data Tools
API GRADE
A
VERIFIED JUL 2026

SCORECARD

ExistencePOORThe Open API is a client-side JavaScript SDK emitting VSON markup, not a hosted REST API over SmartDraw documents.
AccessGOODThe VisualScript SDK is a free download under the MPL 2.0 license; no sign-up or approval involved.
CoverageFAILNo endpoints to list, fetch, or update diagrams stored in SmartDraw Cloud; the surface is a one-way render pipeline.
AuthFAILNo published OAuth flow and no API key issuance anywhere on the developer site; the SDK runs client side with no auth layer.
Docs & DXPOORSDK docs exist but SmartDraw states it does not offer technical support for the SDK; JavaScript only, no webhooks or rate-limit docs.
StabilityGOOD
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Supergood: SmartDraw shipped a real API. Most vendors don't; we ship near-native APIs for the rest.

Frequently asked questions

SmartDraw scores A on the API Report Card. SmartDraw's Open API is a client-side JavaScript SDK that emits VSON diagram markup, not a hosted REST service. There are no endpoints for reading or updating stored diagrams, no OAuth or API key flow, and no webhooks. The SDK downloads free under MPL 2.0, without technical support.

Tried to integrate with SmartDraw?
SOURCES
The Open API is fundamentally a client-side JavaScript SDK that emits VSON markup, not a hosted REST/CRUD API, there are no documented endpoints for listing, fetching, or updating diagrams stored in SmartDraw Cloud smartdraw.com
SmartDraw explicitly states they 'do not offer technical support for the SDK', developers are on their own smartdraw.com
No published OAuth 2.0 flow, API key issuance flow, rate-limit documentation, or webhook catalog on the public developer site smartdraw.com
Integration depth is limited compared to Lucidchart's developer.lucid.co REST + Extension API and SCIM provisioning developer.lucid.co
VisualScript SDK is JavaScript-only; no first-party Python, Java, .NET, or Go SDKs smartdraw.com
REST Extension Builder targets visualizing third-party data inside SmartDraw, it is not a mechanism for external systems to read SmartDraw content programmatically smartdraw.com
Users report being enrolled into a 'free trial' without clear disclosure and then unable to export, share, or print their work without buying an annual-only subscription trustpilot.com
Poor performance, frequent lost edits, and inconsistent state, especially on large diagrams in the web version g2.com
Layer handling is buggy: items in prior layers shift unexpectedly when new layers are added capterra.com
Snap-to-grid and measurement tools are unreliable, measurement reads grid distance rather than the user-selected anchor points softwareadvice.com
Customer service described as 'non-existent' by multiple reviewers, including difficulty resolving billing and cancellation disputes trustpilot.com
Annual-only billing model and aggressive auto-renewal create surprise charges and refund friction trustradius.com
Web version lags significantly on complex diagrams compared to the desktop app g2.com