Visual Schema Designer
Design data models on an interactive canvas with drag-and-drop simplicity. See relationships, constraints, and dependencies at a glance — no YAML editing required.
- Drag-and-drop class creation with property editors
- Smart auto-layout algorithms
- Color-coded groups with collapsible containers
- Real-time relationship visualization with animated edges
- Version comparison with side-by-side diff highlighting
- 10+ canvas themes including dark mode and blueprint
- Canvas export to PNG, SVG, PDF, Mermaid, PlantUML, and more
- Quality scoring with completeness and consistency grades
Visual API Path Authoring
Design every endpoint visually — operations, parameters, request bodies, responses, and security schemes — all on a dedicated developer-focused canvas with HTTP method color coding and real-time OpenAPI validation.
- HTTP method nodes with GET, POST, PUT, PATCH, DELETE color coding
- Drag-and-drop parameters, responses, and schema bindings
- Multi-content-type support (JSON, XML, multipart/form-data)
- Inline schema editing with class reference ($ref) binding
- Response status code color bands (2xx, 3xx, 4xx, 5xx)
- Security scheme configuration (API Key, Bearer, OAuth2)
- Smart edge routing with animated data flow visualization
- Auto-generate CRUD operations from existing schemas
Import almost anything from Anywhere
Bring your existing API specifications into Apiome with a guided, multi-step import wizard. Pull from file upload, URL fetch, clipboard paste, Git cloning, SwaggerHub, Postman collections, live MCP servers, or AI-generated specs — spanning REST, event-driven, GraphQL, and gRPC APIs.
- OpenAPI 3.1 / 3.0, Swagger 2.0, and JSON Schema (REST)
- AsyncAPI 2.x / 3.x for event-driven and streaming APIs
- GraphQL from SDL or live endpoint introspection
- gRPC / Protobuf from .proto files or server reflection
- Git import from GitHub, GitLab, and Bitbucket with branch selection
- SwaggerHub, Postman v2.1 collections, and MCP server discovery
- AI-powered import: describe your API in plain English
- Quality scoring (A–F), transaction-based execution, and live progress logs
Every source, one catalog
Bring in APIs however they live today — from a file on disk to a running server — across every major paradigm. The wizard detects, normalizes, scores, and catalogs each one.
Where you import from
File Upload
Drop or browse for a spec file
URL Fetch
Pull a spec straight from a URL
Clipboard Paste
Paste raw JSON or YAML content
Git Repository
GitHub, GitLab, Bitbucket + branches
SwaggerHub
Public and private SwaggerHub APIs
Postman Collection
Import Postman v2.1 collections
MCP Server
Discover a live MCP endpoint
AI Generation
Describe your API in plain English
What you can import
OpenAPI 3.1 / 3.0
REST APIs — the modern OpenAPI standard
Swagger 2.0
Legacy REST API descriptions
JSON Schema
Standalone data-model schemas
AsyncAPI 2.x / 3.x
Event-driven and streaming APIs
GraphQL
SDL or live endpoint introspection
gRPC / Protobuf
.proto files or server reflection
Enterprise & mainframe formats
Over 30+ additional enterprise and mainframe formats
Complete platform capabilities
Every tool you need to design, validate, export, and collaborate on APIs — in one place.
Interactive Canvas
Drag-and-drop schema design with smart auto-layout, grid snapping, minimap navigation, and zoom controls.
Paths Designer
Visual endpoint authoring with HTTP method color coding, parameter editing, and response schema binding.
Multi-Source Import
Import from file, URL, clipboard, Git, SwaggerHub, Postman, MCP servers, or AI — across REST, event, GraphQL, and gRPC APIs.
Multi-Tenant Architecture
Organize projects by teams and organizations with granular permission controls and isolated workspaces.
Version Control
Full version history with side-by-side comparison, diff highlighting, and semantic change tracking.
Code Generation
Generate OpenAPI specs, database migrations, and DTO stubs from your visual designs automatically.
10+ Canvas Themes
Light, dark, high contrast, blueprint, whiteboard, solarized, nord, and more — switch instantly.
Relationship Visualization
Animated edges with smart routing, cardinality labels, and constraint badges for clear data flow.
Rich Export Options
Export canvas to PNG, SVG, PDF, Mermaid, PlantUML, GraphML, DOT, or raw JSON with an export wizard.
Canvas Search
Find any class or property instantly with Cmd+F search, regex support, and result highlighting.
Granular RBAC
Built-in Owner, Admin, Editor, and Viewer roles per workspace, with a resource-by-action permission matrix you can tune to your team.
Member Lifecycle
Invite, suspend, and offboard members with status-aware access — suspended members are denied tenant access immediately.
Tamper-Evident Audit Log
Every privileged action is recorded to an append-only, hash-chained access ledger, exportable to JSON or CSV for compliance.
Platform Admin Plane
A platform-administration plane kept separate from tenant administration, with SSO and SCIM provisioning on the roadmap.
API Security Schemes
Configure OAuth2, API Key, Bearer token, and OpenID Connect security directly on operations.
AI-Powered Import
Describe your API in plain English and let AI generate a complete OpenAPI specification for you.
Quality Scoring
Automated A–F quality grades measuring completeness, consistency, best practices, and security coverage.
Public API Browser
Share your API specifications publicly and browse community-shared designs for inspiration.
Drag-and-Drop Everything
Operations, classes, properties, and schemas can all be dragged from the sidebar directly onto the canvas.
Level of Detail
Nodes simplify automatically when zoomed out, showing only class names for a clean bird's-eye view.
Schema Analytics
Track total classes, properties, relationships, and complexity metrics across your entire project.
Why teams choose Apiome
Unlike text-only spec editors or heavyweight API gateways, Apiome is a visual-first design platform purpose-built for teams who think in data models and endpoints.
| Capability | Apiome | Swagger Editor | Stoplight Studio | Postman |
|---|---|---|---|---|
| Visual Schema Canvas | ✅ | ❌ | ✅ | ❌ |
| Visual Path / Endpoint Designer | ✅ | ❌ | Partial | ❌ |
| OpenAPI 3.1 Support | ✅ | ✅ | ✅ | ✅ |
| Drag-and-Drop Nodes | ✅ | ❌ | ✅ | ❌ |
| Multi-Source Import (File, URL, Git, SwaggerHub, Postman, MCP, AI) | ✅ | File only | File / URL | File / URL |
| Multi-Paradigm Import (REST, AsyncAPI, GraphQL, gRPC) | ✅ | ❌ | Partial | ❌ |
| AI-Powered Spec Generation | ✅ | ❌ | ❌ | ❌ |
| Quality Scoring (A–F) | ✅ | ❌ | Partial | ❌ |
| Canvas Themes (10+) | ✅ | ❌ | ❌ | ❌ |
| Canvas Export (PNG, SVG, PDF, Mermaid) | ✅ | ❌ | ❌ | ❌ |
| Version Side-by-Side Diff | ✅ | ❌ | ✅ | ❌ |
| Group Containers for Schemas | ✅ | ❌ | ❌ | ❌ |
| Smart Edge Routing (4 styles) | ✅ | ❌ | Basic | ❌ |
| Multi-Tenant / Team Workspaces | ✅ | ❌ | ✅ | ✅ |
| Granular RBAC (Owner / Editor / Viewer) | ✅ | ❌ | Partial | Partial |
| Tamper-Evident Access Audit Log | ✅ | ❌ | ❌ | ❌ |
| Free Personal Tier | ✅ | ✅ | ✅ | ✅ |
Comparison based on publicly available feature sets as of February 2026. Feature availability may change.
Your design-to-deployment workflow
From first schema sketch to production-ready OpenAPI spec in four steps.
Design Schemas
Drag classes onto the canvas, define properties and types, and draw relationships between your data models.
Author Paths
Open the Paths Designer to create endpoints, bind schemas to request bodies and responses, and configure security.
Validate & Score
Run real-time OpenAPI validation, review quality scores, and fix issues before exporting your specification.
Export & Ship
Export as OpenAPI YAML/JSON, generate code stubs, or share your API documentation with your team and consumers.