Arrives with your key
Zero retention$100 monthly capMarkup ≤ 20%
IIdentity
One sign-in, every app.
No account to create and no key to paste. An app asks for your key and inherits every decision you have already made.

Before
Same you. Further possibilities.
After
Your balance$41.20
Turn it once.
01 · Set up
Set it once.
Your preferences
02 · Spend
See spend. Save by default.
Total spend
Saved 42%
BeforeWith Universal Key
Discounted by default.
03 · You
Your setup follows you.
You
Why it travels
Identity, policy and money are the three things every AI app makes you redo. Put them on the key, and no app gets to ask again.
Arrives with your key
Zero retention$100 monthly capMarkup ≤ 20%
IIdentity
No account to create and no key to paste. An app asks for your key and inherits every decision you have already made.
REQ 7830Checked before the request runs
VerifiedIIPolicy
Your rules are checked on every request, before it runs. An app that cannot honour them is stopped at the door, and you see exactly why.
IIIMoney
Top up once. Every compatible app draws from the same live balance, and any one of them can be cut off in a click.
The key
Not another API key. Your balance, your limits and your privacy settings, in one credential every compatible app reads.

•••• •••• 8A2F
Works with
Claude Code, Cursor, Codex, Perplexity and the next thing you try sign in with your key, and reach 304 models across every major provider from the same balance.
Universal Key
Your balance · your rules
If a provider goes down, the call moves to the next one. Same balance, same rules, nothing to retry.
For builders
One “Continue with Universal Key” button. People arrive signed in, already funded, with their rules attached. No billing to build, no keys to hand out, no privacy page to write.
import { UniversalKey } from '@universal-key/sdk'
// your user signs in with their key
const key = await UniversalKey.signIn()
// and every call is paid from their balance
const reply = await key.chat({
model: 'claude-sonnet',
messages,
})
Your app
Funded · ZDR on · cap $40/mo
Questions
One key for every AI app you use. It holds your balance, your spending limits, your privacy rules and your preferences, and any compatible app can use it instead of making you sign up, pay and configure it from scratch.
No. You keep using the apps you like. They sign you in with your key and bill your balance, instead of asking for their own account, card and API key.
You top up once. Every app you connect draws from that balance, each within the limit you set for it, and every charge shows what the model cost and what the app added.
Your privacy settings ride on the key. Zero data retention is on by default and apps inherit it: an app that cannot honour your rules is stopped before the request runs.
Yes. Revoke any app from one list and its access ends everywhere at once, with no support ticket and no card to cancel.
A sign-in button and one SDK call. People arrive signed in, funded and with their rules attached, and you get paid your published margin on every call.
One key. A wider world.
One key.
A more capable you.
Universal Key