OPENAI-COMPATIBLE TESTING INFRASTRUCTURE

Build fast.
Ship faster.

A ready-to-use OpenAI-compatible API for rapid prototypes. Start with 100,000 credits, connect your app, and spend your time building.

Read the docs
100,000 starting credits OpenAI-compatible No LLM bill
LIVE API SHAPE
POST/api/v1/chat/completions200 OK
model: "mock-smart",
messages: [{ role: "user",
  content: "Build me an idea" }]
responseReady to build.request_id: req_mock_7f2a
100,000 starting credits
01100,000 creditsEnough room to prototype, test, and iterate.
02Build fastPredictable simulated models with usage accounting.
03Ship with confidenceRequest IDs, clear errors, streaming, and API keys.

THE FAST PATH

From first request to working prototype.

Everything you need to put an AI-powered idea in front of people without building an inference stack first.

01

Sign in with Google

Your account is created automatically and your starting credits are ready from the first session.

GoogleContinue with Google
02

Grab your API key

Get a secure openmock_live_ key and connect it to your server in minutes.

openmock_live_••••••••••••
03

Make your first call

Use the OpenAI SDK, cURL, or your existing client and start shipping your prototype.

200x-request-id

SIMULATED MODELS

Pick the behavior you need. Keep the API the same.

These models simulate latency, token usage, credit multipliers, and controlled failures so you can test the parts of your product that matter.

Explore API docs
MODELCREDIT
mock-fastquick experiments
mock-smartbalanced output
mock-reasonerdeeper reasoning
mock-unstabletest failure handling
Bearer authentication · input + output usage · request IDs · streaming

BUILT FOR ITERATION

See what your app is actually doing.

Track requests, tokens, credits, latency, model selection, and success or failure from one lightweight dashboard.

USAGETHIS WEEK
CREDITS USED12,480of 100,000
requests 184avg latency 612mssuccess 98.9%

OPENAI SDK COMPATIBLE

Bring the SDK you already know.
Start building.

Change the base URL and API key. Keep the familiar OpenAI JavaScript or Python SDK flow and get your hackathon prototype moving.

baseURLhttps://openmock.vercel.app/api/v1OpenAI-compatible