Release v0.14.0Registered

Frictionless Mock API Engine.

Develop frontend without depending on the backend. Create dynamic endpoints in seconds and organize your workflow with surgical precision.

Looking for the main product page? Create a mock API directly from the homepage and get a live hosted endpoint in seconds.

Scalability

Scale without Worries.

Guest users have a physical limit of 2 projects. By registering, your dashboard can hold up to 50 separate workspaces, allowing you to manage entire API ecosystems in one place.

50 project slots available
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2 / 2
Limit Reached
Registered
0 / 50
Room for everyone
Unlock 48 additional slots now

Capabilities

Power and Simplicity.

Mocks in seconds

Define the path, choose the method, and your mock is live. No deploy, no waiting.

OpenAPI Import

Turn an API contract into hosted mock endpoints. Upload YAML/JSON, paste content, or fetch a public schema URL.

Dynamic Data

Native Faker integration for realistic responses every time.

Multi-Project

Isolate your mocks by environment or client in dedicated projects.

API Keys

Protect your endpoints and use them in your CI/CD pipelines with ease.

Activity Logs

Monitor every single request in real-time. Instant debugging.

Chaos Mode

Simulate network instability, variable latency, random failures, and malformed payloads to build truly resilient frontends.

Conditional Responses

Return different status codes and payloads from a single endpoint based on query, header, or body. Drive every UI state — empty, error, role-based — without spinning up extra mocks.

MCP Server

Connect Claude Code, Cursor, Windsurf, and other AI assistants directly to your mock workspace. Query and manage projects, endpoints, and logs through natural language.

OpenAPI Import

From contract to mock API.

Stop rebuilding mocks by hand. Import your OpenAPI or Swagger specification and get shareable endpoints with realistic Faker data in minutes.

  • OpenAPI 3.0.x / 3.1.x and partial Swagger 2.0 support (YAML or JSON).
  • Three input modes: file upload, public URL, or paste content.
  • Preview every importable endpoint, then group operations into CRUD resources.
  • Enums, patterns, and common formats map to configurable Faker types.
Read the import guide
openapi.yaml
openapi: 3.0.3
paths:
 /users:
 get:
 responses:
 '200':
 content:
 application/json:
 schema: ...
Contract to endpoints
GET/users6 fields
GET/users/{id}6 fields
POST/users4 fields
GET/orders8 fields
CRUD group: /users
Chaos Active
Resilience Test
GET
40ms
POST
20ms
GET
450ms
GET
35ms
Field Chaos
{
"id": 1024,
"email": null,
"status": "invalid"
}
Failure Rate
25%
Latency Spike
+450ms

Real-time Chaos Simulation

Test like a Pro.

Don't just test the "happy path". Configure realistic failure profiles and inject field-level data mutilations (Field Chaos) to see how your app handles the unexpected.

100% Reliability control
Header-driven chaos

Override presets, failures, and latency directly from a request header for CI, QA, or one-off resilience tests.

X-Mimicry-Chaos-Preset: mobile

Developer tool

Need placeholder text for your mock responses?

Use the free Lorem Ipsum Generator and REST API to create text for UI prototypes, fixtures, and mock JSON payloads.

Open Lorem API

Power up your Workflow.

Unlock maximum productivity with advanced tools for teams and solo developers.

50 Projects

Organize teams and clients nonstop.

200 Live Mocks

Run complex tests with always-on endpoints.

Cloud Sync

Data saved forever, wherever you are.

Plans & Persistence

Feature comparison

Guest

Trial Mode
Mock Persistence
24 Hours
Unlimited Projects
Up to 2 Projects
API Keys
No API Keys
Cloud Sync
Local Storage Only
Continue as Guest
MOST CHOSEN

Registered

Full Access
Mock Persistence
Unlimited
Unlimited Projects
Up to 50 Projects
API Keys
Personal API Keys
Cloud Sync
Full Cloud Sync
Simultaneous active mocks
100 Simultaneous mocks
Get Started

FAQ

Is a credit card required?

Absolutely not. Mimicry is built to be instantly accessible.

What happens to Guest data?

After 24 hours of inactivity it is deleted, but if you register before then it will be automatically imported into your account.

How does Chaos Mode help me?

Chaos Mode lets you simulate real-world error scenarios (like 500s or 404s) and network latency, helping you test error boundaries and loading states without writing backend code.

How can I populate my mocks?

You can use 4 strategies: OpenAPI import (upload a YAML/JSON contract or public URL), Schema Faker (dynamic generation), POST/Push (send data via API or Curl), or manually pasting a JSON object/array.

Can I import an OpenAPI schema?

Yes. Upload an OpenAPI 3.x or Swagger document (YAML, JSON, or public URL) and Mimicry converts JSON response schemas into mock endpoints with Faker-powered data. Preview endpoints, group them as CRUD resources, and import in one step.

Ready to speed up your development?

Mimicry

We simplify frontend development by allowing you to create simulated APIs in seconds.

BUILDING ARCHITECTURE