Mock API generator
Create a mock API your frontend can actually integrate with
Create stable mock REST endpoints for frontend work, demos, tests, and prototypes without maintaining a temporary backend.
What this workflow solves
Go from idea to a stable HTTP contract without building every backend layer first.
A useful mock API should behave like the service you plan to ship: stable paths, realistic methods, predictable JSON, and clear errors. With NexApi you can create that contract early, then keep the same endpoint structure while the project grows.
Give frontend developers stable URLs before the full backend exists.
Model success and request-validation behavior early.
Share one mock API across local development, demos, and QA.
Inspect request logs when a client integration behaves unexpectedly.
How it works
A short path from data model to usable endpoint.
Define the contract
Create the routes, methods, fields, and response shape your production API is expected to use.
Add representative data
Use realistic records so UI states and edge cases are easier to test.
Connect the frontend
Point your application at the NexApi runtime URL instead of a local fixture.
Iterate with logs
Use request logs to catch path, method, auth, and payload mismatches during integration.
GET /r/demo/users/7{
"id": 7,
"name": "Alex Morgan",
"plan": "pro",
"avatar": "https://example.com/avatar.png"
}Mock a user endpoint
Your frontend can integrate against a stable route long before the final backend is complete.
Built into NexApi
The API operations layer is already there.
Start small, then add the controls normally scattered across backend code, gateway config, webhook workers, and observability tools.
Visual endpoint builder
Configure methods, paths, request schemas, and response mappings from one interface.
API keys and access
Add API-key based access rules and keep public endpoints under control.
Rate limits and caching
Apply endpoint-level runtime controls without rebuilding the surrounding backend.
Webhooks and connectors
Connect REST APIs with Google Sheets, Slack, Discord, webhooks, Postgres, MySQL, and external REST APIs.
OpenAPI output
Keep the API contract consumable by documentation and developer tooling.
Logs and analytics
Inspect requests and usage from the same dashboard used to configure the API.
Good fit for
Teams that want to ship the API contract first.
Frequently asked
Is this only for fake data?
No. A project can start as a mock and later use NexApi's data and connector capabilities while keeping the API contract familiar to the client.
Can multiple developers use the same mock endpoint?
Yes. A published endpoint gives the team a shared HTTP contract instead of separate local fixture files.
Can I see what requests the frontend sent?
NexApi includes request logs and analytics, which makes integration debugging much easier than opaque static mocks.
Build it in NexApi
Turn this use case into a working endpoint.
Start with the contract you need now, then add keys, connectors, webhooks, analytics, and OpenAPI as the project grows.