Your APIs Speak Different Languages. Your Tools Should Too.
Modern backends run multiple protocols — but most API tools only speak REST.
You Need 4+ Separate Tools
Postman for REST, GraphiQL for GraphQL, grpcurl for gRPC, wscat for WebSocket — each with its own setup, auth config, and learning curve.
Half Your APIs Have No Docs
REST gets Swagger. But your WebSocket events, gRPC services, and GraphQL schemas live in scattered wikis — or nowhere at all.
Debugging Across Tools Wastes Hours
Reproducing a bug means bouncing between a REST client, a WebSocket terminal, and your IDE — with no shared environment, no shared history.
Every Protocol. Full Lifecycle.
Each protocol gets first-class support — not a bolt-on afterthought.
REST
GraphQL
gRPC
WebSocket
SSE
Socket.IO
SOAP
The Foundation — Supercharged
Full-lifecycle REST API development with visual design, intelligent debugging, automated testing, and instant documentation.
Visual API Design with OpenAPI
Design REST APIs visually with full OpenAPI 3.x support. Reusable schemas, auto-validation, and a design editor that generates specs — not the other way around.
Smart Debugging with Auto-Generation
Send requests with auto-generated parameters, built-in response validation against your spec, and environment variables that work across your entire project.
Schema-Aware Query Building
Fetch your schema, get autocompletion, and run queries, mutations, and subscriptions — all inside Apidog.
Schema Explorer & Autocompletion
Click "Fetch Schema" to load your remote GraphQL schema. Get field-level autocompletion, type hints, and inline documentation as you build queries — like GraphiQL, but integrated into your full API workflow.
Queries, Mutations & Subscriptions
Full support for all GraphQL operations. Use variables for dynamic parameterization, visualize responses, and save queries to your project for the whole team to reuse.
Proto-Native gRPC Debugging
Import .proto files, auto-generate messages, and debug all four gRPC call types with a visual timeline.
Import Proto & Auto-Generate
Import .proto files from your filesystem or URL. Apidog parses your service definitions and auto-generates message payloads — saving hours of manual JSON crafting for complex schemas.
All 4 Call Types with Timeline View
Unary, Server Streaming, Client Streaming, and Bidirectional Streaming — each with a chronological timeline showing connection status, sent and received messages in real time.
Real-Time Debugging for Real-Time APIs
Connect, send multi-format messages, and monitor WebSocket and native Socket.IO communication — all in a live timeline.
Multi-Format Message Composition
Send Text, JSON, XML, HTML with syntax highlighting — plus binary data via Base64 or Hexadecimal. Full handshake customization with auth parameters, headers, and cookies.
Native Socket.IO Support
Subscribe to named events, send multi-argument messages, and handle acknowledgments. Apidog understands the Socket.IO protocol layer — not just the underlying WebSocket transport.
Stop Reading Raw Event Streams.
Debug streaming AI responses with auto-merge, reasoning chain visualization, and built-in support for OpenAI, Claude, Gemini, and DeepSeek formats.
Auto-Merge Streaming Responses
SSE streams arrive as fragmented data chunks. Apidog automatically detects text/event-stream responses and merges them into a unified output — essential for debugging LLM API responses.
SSE Debugging for LLM APIs in Published Docs
Readers of your published API documentation can debug SSE endpoints — including streaming LLM responses — directly in the browser, without any additional tooling.
Legacy Made Manageable
Import WSDL files, debug SOAP requests, and even convert SOAP services to REST — bridging legacy and modern in one tool.
WSDL Import & XML Editing
Import WSDL files to auto-generate SOAP endpoint definitions. Edit XML bodies with syntax highlighting and error detection. Full support for SOAP 1.1 and 1.2 with proper Content-Type headers.
Generate SOAP / Web Service API Documentation
Automatically generate human-readable API documentation from your WSDL definitions. Share SOAP and Web Service specs with your team and external consumers in a structured, browsable format.
One Workspace. All Protocols.
Every protocol shares the same team workspace, environments, auth, and documentation pipeline.
Unified Project Tree
REST, WebSocket, SSE, Socket.IO, and GraphQL endpoints live side-by-side in the same project. gRPC gets its own project type but shares the same workspace. No context switching.
Shared Environments & Auth
Configure once, use everywhere. OAuth2, Bearer tokens, API keys, and custom headers work across all protocol types — including gRPC metadata and WebSocket handshake parameters.
Cross-Protocol Documentation
Generate beautiful, interactive documentation for all your APIs regardless of protocol. Publish to your API Hub with version selectors, "Try It Out" buttons, and team-wide access.
CI/CD Pipeline Integration
Run automated tests across all protocols via Apidog CLI. Integrate with Jenkins, GitHub Actions, GitLab CI, and more — test your REST, GraphQL, and gRPC endpoints in a single pipeline.
#1 Easiest to Use API Management Software
Ranked by real users on G2, the world's #1 B2B software review platform.
TRUSTED BY TOP BRANDS WORLDWIDE
One Tool. Every Protocol.
Join 600k+ developers who build, test, and document multi-protocol APIs in Apidog.