Mock APIs in seconds — Define a schema and get a live endpointRead more

Working mock APIs without a Backend

Define your JSON shape, every request returns fresh, realistic mocks. Ship the frontend against a live endpoint while the real backend catches up.

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Get to know more about GhostAPI

Lightweight mock endpoints from schema. Realistic data on every call, so your UI can move before production APIs exist.

What it is

Instant mock endpoints

A SaaS tool that turns a JSON response shape into a working GET endpoint. No database or server code required to start integrating your frontend.

How it works

Schema first

You define fields and types; we store the blueprint and issue a unique URL. Each request returns freshly generated values using rules and libraries like Faker.

Why teams use it

Ship faster

Frontend and QA can hit a live-like API immediately while backend work catches up—fewer blockers, quicker iterations, easier scenario testing.

Playground

Pick GET or POST, define formats, then Submit and Test. POST sends the test body and merges it into the generated response.

Submit to provision mock URL

API generation — request/response formats

Request formatAny valid JSON
Response formatAny valid JSON
Creates a public GET or POST mock on this app.

Get to know how GhostAPI works

Five steps from schema to live Mocks

Step 1

Define your schema

Describe response fields and types in JSON—strings, numbers, booleans, nested objects.

Next
Step 2

Submit your format

Send the structure to API Ghost so it knows what each mock response should look like.

Next
Step 3

Receive a unique URL

Get a dedicated GET endpoint you can drop into apps, tests, or prototypes.

Next
Step 4

Call it like a real API

Your frontend issues normal GET requests—no special client or SDK required.

Next
Step 5

Fresh data every time

Each response is generated on the fly with realistic values (e.g. Faker-style rules).

Outcome