01 — Source
One definition
Your workspace has one canonical API definition.
Design, document and test APIsin one workspace.
Import OpenAPI, design endpoints visually, browse documentation and test requests. Configure mock responses, generate clients and export your API contract from the same definition.
Payments API / designer / example preview
POST/payments
Summary
Create a payment
Operation ID
createPayment
ParametersRequest bodyResponsesMocks
201 · Payment created
400 · Invalid request
401 · Unauthorized
// ONE SYSTEM
API tools fail in isolation.
Context compounds.
Documentation, request testing, mocks and generated code are most useful when they share the same API definition. REST Test keeps the workflow connected so a change in one place does not become stale information somewhere else.
02 — Design
Structured editing
Design endpoints, schemas and responses without losing context.
03 — Test
Real requests
Build and execute requests against the API you are documenting.
04 — Sync
Tracked changes
Know when the definition changes and what changed with it.
// Documentation
Documentation that comes from the API itself.
REST Test turns your API definition into structured documentation your team can actually use. Endpoints, parameters, request bodies, responses and examples stay connected to the same model you design and test.
When the API changes, the documentation changes with it instead of becoming another artifact your team has to maintain manually.
Payments API / documentation / example preview
POST/payments
Creates a payment for an existing order.
ParametersRequestResponses
{
"amount": 4900,
"currency": "EUR"
}
"amount": 4900,
"currency": "EUR"
}
// API Designer
Design APIs as structured contracts.
Create and refine endpoints without editing raw specification files by hand. Define methods, paths, parameters, authentication, request bodies, schemas, responses and examples from one structured editor.
Everything you change feeds the same API model used by Documentation, Request Builder, mocks and generation.
Payments API / designer / example preview
POST/payments
Summary
Create a payment
Operation ID
createPayment
ParametersRequest bodyResponsesMocks
201 · Payment created
400 · Invalid request
401 · Unauthorized
// Request Testing
Test the API you are documenting.
Build requests with query parameters, headers, authentication and request bodies, then inspect the real response without leaving the workspace.
Use Browser Runner when a request can run directly from the browser or Cloud Runner when the request needs to execute through REST Test infrastructure.
Payments API / request / example preview
POSThttps://api.example.com/paymentsSend
ParamsHeadersAuthBody
{ "amount": 4900, "currency": "EUR" }
201 Created184 ms · 412 B
// CAPABILITIES
One platform.
One API lifecycle.
Design
Model endpoints, parameters, request schemas, responses and authentication as a structured API definition.
Document
Turn that definition into documentation that stays connected to the source instead of drifting over time.
Test & Mock
Execute real API requests and define predictable mock responses for frontend development and integration testing.
Generate
Generate types and integration code from the same API definition used everywhere else in the workspace.
// API INFRASTRUCTURE
The API definition becomes infrastructure.
REST Test is built around one simple idea: your documentation, tests, mocks and generated integrations should not become separate versions of the truth.
Keep them connected to one API definition, track its revisions and let every part of the workflow consume the same source.
That gives developers a clearer view of what changed, what depends on it and what needs to be updated next.
01
Definition history
Every meaningful API edit creates a revision so changes remain traceable over time.
02
Source monitoring
Remote OpenAPI definitions can be checked for upstream changes manually or on a schedule.
03
Change review
Compare revisions and review added, modified or removed operations before applying incoming changes.
04
Connected outputs
Documentation, request testing, mocks, SDKs and generated types all consume the same active definition.
// FAQ
Questions, answered.
// BUILD WITH CONTEXT
Bring your entire API workflow
into one workspace.
Start from an existing definition or create a new API from scratch. Design it, document it, test it and keep everything connected as it evolves.
Start for freeNo credit card required.