Drop-in compatible
Standard REST with an OpenAI-style schema. Point your existing client at grokapi.io — just change the base URL and key.
# point your client at us
base_url = "https://api.grokapi.io/v1"
api_key = "sk-grok-your-key"
Grok 4 · Grok 3 · pay as you go
Build with Grok through one fast API.
Instant access to xAI's Grok models through a drop-in, OpenAI-compatible proxy. Buy credits, get a key, and start building in minutes — you only pay for what you use.
from openai import OpenAI
client = OpenAI(
api_key="sk-grok-your-key",
base_url="https://api.grokapi.io/v1",
)
resp = client.chat.completions.create(
model="grok-4",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Works with the tools you already use
OpenAI SDK
LangChain
LlamaIndex
Vercel AI SDK
cURL
Why grokapi.io
A thin, reliable layer over the Grok API
Everything you need to run Grok in production — without rebuilding your stack.
Prepaid credits
Top up and spend only on what you use. No subscription, no surprise invoices.
Low-latency proxy
Globally routed edge with minimal overhead, automatic retries, and failover.
Usage & keys
Real-time spend tracking per key and model, scoped keys, instant rotation and limits.
Secure by default
Encrypted in transit, rate-limit smoothing, and a 99.9% uptime target.
Models
The Grok lineup, one API
Pick the right model per request through a single consistent interface.
grok-4
grok-3
Get started
From sign-up to first call in three steps
01
Buy credits
Create an account and top up. Credits never require a subscription.
02
Generate a key
Create an API key from your dashboard and drop it into your environment.
03
Make your first call
Set the base URL to our endpoint and call the API with the SDK you already use.
Pricing
Simple, pay-as-you-go credits
Buy a credit pack, spend it on any model. Top up more, get more bonus credit.
Starter
$5
For testing and side projects.
- $5 in usage credit
- Access to all models
- 2 API keys
- Usage dashboard
Most popular
Builder
$50 + $5 bonus
For production apps and teams.
- $55 in usage credit
- Unlimited API keys
- Spend limits & alerts
- Priority email support
Scale
$500 + $75 bonus
For high-volume workloads.
- $575 in usage credit
- Highest rate limits
- Dedicated routing
- Invoicing, SSO & SLA
| Model | Input / 1M tokens | Output / 1M tokens |
|---|---|---|
| grok-4 | $3.00 | $15.00 |
| grok-3 | $2.00 | $10.00 |
Indicative rates for illustration. See your dashboard for live pricing.
FAQ
Frequently asked questions
No. grokapi.io is an independent API proxy and reseller for Grok and is not affiliated with x.ai. For Grok's official site, visit x.ai.
Immediately. After you top up credits and generate a key, you can make your first call in minutes — no waitlist or approval step.
Yes. The endpoint mirrors the OpenAI Chat Completions schema, so most existing SDKs and tools work by changing only the base URL and API key.
Prepaid credits are valid for 12 months from purchase, and you'll get spend alerts before your balance runs low.
Requests are proxied over encrypted connections and we don't sell your data. See our Privacy Policy for full detail.
Yes — on the Scale plan we support invoicing and wire payment. Contact us to set it up.
Start building on Grok today
Top up, get an instant API key, and ship your first Grok-powered feature this afternoon.
Get your API key