Launching soon — join the waitlist

Free APIs and tools
for builders.

Cobra Systems gives you instant access to production-grade APIs and developer tools — no credit card, no rate-limit walls, no friction.

Days

Hours

Minutes

Seconds

A sneak peek

One key. Every endpoint.

Ship in seconds with a clean, predictable REST API.

# Grab data with a single request
$ curl https://api.cobrasystems.tech/v1/data \
    -H "Authorization: Bearer cobra_sk_live_..."

{
  "status": "ok",
  "plan": "free",
  "requests_left": "unlimited"
}

// Node.js — using fetch
const res = await fetch("https://api.cobrasystems.tech/v1/data", {
  headers: { Authorization: "Bearer cobra_sk_live_..." }
})

const data = await res.json()
console.log(data) // { status: "ok", plan: "free" }

# Python — using requests
import requests

r = requests.get(
    "https://api.cobrasystems.tech/v1/data",
    headers={"Authorization": "Bearer cobra_sk_live_..."}
)
print(r.json())  # {'status': 'ok', 'plan': 'free'}

Try it live

Interactive API explorer

Pick an endpoint and fire a sample request. This is what you'll build with.

GET https://api.cobrasystems.tech/v1/weather?city=Tokyo

Click Send to run the request

The catalog

APIs shipping at launch

Weather

Current conditions and forecasts for any city or coordinate worldwide.

GeoIP

Resolve any IP address to country, city, timezone and network in one call.

Currency

Live and historical exchange rates across 160+ world currencies.

QR Codes

Generate crisp, customizable QR codes as PNG or SVG on the fly.

Auth Utils

Hashing, JWT signing and one-time codes without pulling in a heavy library.

Jokes & Fun

Random jokes, quotes and trivia — perfect for demos and side projects.

What's coming

Everything you need to build

Free API Access

Instant keys with generous free tiers. Use them in real, production projects.

Developer Tools

Utilities we build for ourselves, polished and released for everyone for free.

Clear Docs

Readable documentation with real, copy-paste examples that actually work.

Simple Keys

Generate and rotate API keys in seconds. Scoped and secure by default.

Usage Insights

Real-time dashboards so you always know exactly how your APIs are performing.

Built-in Security

Rate limiting, key scoping and abuse protection baked in from day one.

12+

APIs at launch

To get started

<50ms

Median response

The plan

Where we're headed

Private beta Done

First APIs live and battle-tested with a small group of private testers.

Waitlist open Now

Reserve your spot. Members get priority access and higher free limits.

Public launch

Self-serve keys, full docs, and the complete tool suite available to everyone.

Community APIs

Open framework for the community to publish and share their own free APIs.

Why Cobra

Built different

Feature	Cobra Systems	Typical provider
Free tier	Unlimited	Capped & throttled
Credit card to start	Never	Required
Setup time	Under a minute	Sales call
Hidden overage fees	None	Surprise bills
Open community APIs	Yes	No

Questions

Frequently asked

Yes. The core APIs and tools have a genuinely unlimited free tier. We may add optional paid plans later for teams that need SLAs and priority support, but the free tier stays free.

Never. Join the waitlist with just an email, and when we launch you'll generate an API key instantly — no card, no sales call.

Absolutely. Everything is built for real workloads with sensible rate limits, uptime monitoring and security baked in from day one.

We're aiming for the date on the countdown above. Waitlist members get priority access before the public launch, plus higher free limits.

That's on the roadmap. After launch we'll open a framework so the community can publish and share their own free APIs on the platform.

Be first through the door.

Get launch updates and swap ideas with other builders in our Discord.

Join the Discord

Free APIs and toolsfor builders.