Validate invitation

Both routes are public - no secret key required - so you can call them straight from a signup page before the user has any session, to show “this invitation isn’t valid anymore” before they fill out the form.

Validate token

Validate a unique invitation token sent via email.

const result = await kerne.invitations.validateToken('token_123');

if (result.valid) {
  console.log('Valid invitation for:', result.email);
}

Validate code

Validate a shareable join code.

const result = await kerne.invitations.validateCode('7HK4RXPQ');

if (result.canUse) {
  console.log('Code is valid');
}

`canUse` vs `valid`

A code can be valid: true and still canUse: false - that’s a code that exists and hasn’t expired, but has already hit its maxUses. valid: false means it doesn’t exist at all, or has expired. Gate signup on canUse, not valid. A token has no equivalent split: it’s single-use, so being used and being invalid are the same event, and valid: false already covers it.

Server SDK

Frontend SDKs

Validate invitation

Validate token

Validate code

`canUse` vs `valid`

​Validate token

​Validate code

​canUse vs valid

Validate token

Validate code

`canUse` vs `valid`