Zeplin Design Handoff API
Zeplin design handoff REST API for product teams to bridge design and development with automated spec generation, asset export, style guide management, and code snippet generation from Figma, Sketch, and XD designs. Enables AI agents to manage project and screen synchronization for design asset automation, handle component and style guide access for design system management automation, access CSS and code snippet generation for developer handoff automation, retrieve asset export and download for design resource automation, manage annotation and note access for design specification automation, handle webhook integration for design update notification automation, access connected component library for design system consistency automation, retrieve screen version history for design iteration tracking automation, manage team and member collaboration for design workflow automation, and integrate Zeplin with Figma, Sketch, GitHub, Jira, and development tools for end-to-end design handoff automation.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Design handoff. GDPR, SOC2. OAuth2. US/EU. Design specs and asset data.
⚡ Reliability
Best When
A product team wanting AI agents to automate design specification extraction, developer handoff, CSS code generation, and design asset export through Zeplin's design-to-development bridge platform.
Avoid When
DESIGN TOOL SYNC DEPENDENCY FOR AUTOMATED HANDOFF: Zeplin design screen sync requires active Figma, Sketch, or XD plugin connection; automated design handoff pipeline must coordinate design tool export with Zeplin sync; automated handoff without active design tool connection cannot retrieve latest design updates. COMPONENT NAMING CONVENTION CONSISTENCY FOR AUTOMATED LOOKUP: Zeplin component and style guide data relies on naming conventions set by design team; automated component lookup must match exact naming used in Zeplin; automated component retrieval using different naming conventions returns empty results for valid components. CODE SNIPPET LANGUAGE SUPPORT VARIES BY PLATFORM: Zeplin code snippet generation supports different languages per platform (iOS: Swift/Objective-C, Android: Kotlin/Java, Web: CSS/React); automated code generation must specify target platform; automated multi-platform code generation from single Zeplin screen must request platform-specific snippets per target environment.
Use Cases
- • Extracting design specs from developer handoff automation agents
- • Syncing design assets from design system management agents
- • Generating code snippets from design-to-code automation agents
- • Tracking design updates from change notification agents
Not For
- • Design creation and editing (use Figma, Sketch, or Adobe XD for design tools)
- • Full design system management at scale (use Supernova or Specify for tokens)
- • Interactive prototyping (use InVision, Marvel, or Figma for prototypes)
Interface
Authentication
Zeplin uses OAuth 2.0 for API access. REST API with JSON. San Francisco, California HQ. Founded 2015 by Pelin Kenez and Zeki Boyaci. Acquired by Frontify in 2023. Products: Design handoff, style guide, connected components, code snippets, asset export. Integrations: Figma, Sketch, Adobe XD, GitHub, Jira, Slack, JIRA. GDPR. SOC2. Serves design and development teams. Competes with Abstract, InVision DSM, and Figma Dev Mode for design handoff.
Pricing
San Francisco CA. Frontify subsidiary. Free tier (1 project). Per-member subscription. Annual discount.
Agent Metadata
Known Gotchas
- ⚠ WORKSPACE vs PROJECT vs SCREEN HIERARCHY: Zeplin organizes content in Workspaces → Projects → Screens → Layers; automated design asset retrieval must navigate correct hierarchy level; automated screen retrieval from project level returns screen list without layer detail; layer-level data requires separate screen detail request
- ⚠ OAUTH TOKEN SCOPE FOR DESIGN ACCESS: Zeplin OAuth scopes control access to projects, style guides, and assets; automated design integration must request appropriate scopes at OAuth authorization; automated requests for out-of-scope resources return permission denied without clear scope requirement error
- ⚠ DESIGN TOOL EXPORT TIMING FOR WEBHOOK ACCURACY: Zeplin webhooks fire on screen sync events from design tools; automated downstream processing triggered by webhook must account for processing delay between Zeplin receipt and full sync completion; automated spec extraction immediately on webhook may return incomplete screen data
- ⚠ FRONTIFY ACQUISITION INTEGRATION UNCERTAINTY: Zeplin was acquired by Frontify in 2023; long-term API stability and integration roadmap with Frontify platform is evolving; automated workflows built on Zeplin API should monitor for migration or consolidation into Frontify platform APIs
- ⚠ ASSET EXPORT RESOLUTION AND FORMAT SELECTION: Zeplin asset exports support multiple scales (1x, 2x, 3x) and formats (PNG, SVG, PDF, WebP); automated asset export must specify scale and format per target platform; automated single-scale export for multi-platform delivery creates wrong resolution assets for mobile vs web targets
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Scores are editorial opinions as of 2026-03-07.