Whatever the API format, Apiome probably supports it.
39 API formats, with many more being added regularly.
REST & HTTP
OpenAPI 3.1 / 3.0, Swagger 2.0, Google API Discovery, RAML, Smithy, WSDL / SOAP, Arazzo, Postman collections, and .http / .rest files and cURL commands.
Events & Streaming
AsyncAPI 2.x / 3.x, CloudEvents, and Avro and Protobuf message schemas.
Graph & RPC
GraphQL — SDL or live introspection — plus gRPC / Protocol Buffers from .proto files or server reflection, and Apache Thrift.
Schemas & Data Models
JSON Schema, Avro, and SQL DDL, round-tripped against any other target.
Cloud & AI
Kubernetes CustomResourceDefinitions, LLM function-calling tool schemas, and live MCP server endpoints.
Regulated & Mainframe
FHIR, HL7 v2, ISO 20022, ISO 8583, FIX, EDI X12, COBOL copybooks, and z/OS Connect.
Everything you need to build better APIs
Powerful features that streamline your entire API development workflow.
Visual Schema Canvas
Design data models on an interactive canvas with drag-and-drop, smart auto-layout, color-coded groups, animated edges, and 10+ themes.
Paths Designer
Author API endpoints visually with HTTP method color coding, parameter editing, response schema binding, and real-time OpenAPI validation.
Enterprise Import
Import from file, URL, clipboard, Git, SwaggerHub, Postman, MCP servers, or AI — across REST, AsyncAPI, GraphQL, gRPC, Kubernetes CRDs, LLM tool schemas, and 29 more, for 39 API formats in all. Preview the full inventory, projection graph, and lint grade of every import before anything is written.
Export & Transcoding
Choose export targets ranked by readiness, then inspect the artifact structurally with a source-to-target mapping graph before you ship. Emit any of 35 API formats — OpenAPI, Protobuf, GraphQL, AsyncAPI, and more — plus canvas exports to PNG, SVG, PDF, Mermaid, and PlantUML.
Version Control & Diff
Track changes with full version history. Compare versions side by side with diff highlighting for added, modified, and removed schemas.
AI-Powered Design
Describe your API in plain English and let AI generate a complete OpenAPI specification. Quality scoring grades your spec from A to F.
Roles & Access Control
Granular RBAC with built-in Owner, Admin, Editor, and Viewer roles, a tunable permission matrix, member lifecycle controls, and a tamper-evident access audit log.
Multi-Tenant Workspaces
Organize projects by team and organization with isolated workspaces, per-tenant roles, and a separate platform-admin plane for operators.
Public API Browser
Publish specifications to a public portal with Monaco-powered viewers, version comparison, and embeddable snippets — or browse community designs.
How Apiome Works
From design to deployment in four simple steps.
Design Schemas
Drag classes onto the canvas, define properties and types, and draw relationships — or import an existing OpenAPI spec.
Author Paths
Switch to 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 from A to F, and test schemas against real payloads in the Schema Test Bench before exporting.
Export & Ship
Pick a target ranked by readiness, verify the emitted artifact structurally, then export to any of 35 formats or publish docs and hosted mocks for your consumers.
Explore Public OpenAPI Specifications
Discover and learn from publicly available OpenAPI specifications shared by the community. Browse real-world API designs, get inspiration for your projects, and see how others structure their APIs.
- ✓Browse hundreds of public API specifications
- ✓View detailed endpoint documentation and schemas
- ✓Learn best practices from community-shared designs
- ✓Share your own APIs with the community
