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C
by Clerk
Invite a user
Creates an invitation for an email address and sends the invitation email with a link to sign up.
Updated Sep 26, 2026
create-invitation.md
Invite a user
Creates an invitation for an email address and sends the invitation email with a link to sign up.
Note: Fails if the email address already has an invitation or belongs to an existing user. Invitations expire after a month by default.
Set up
Use the first option your agent supports.
API (official)
- Base URL: https://api.clerk.com/v1
- Endpoint:
POST /invitations - Auth: send the header
Authorization: Bearer $CLERK_SECRET_KEY - Get a key: https://dashboard.clerk.com/~/api-keys
- Docs: https://clerk.com/docs/reference/backend-api
Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.
Rules
- Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
- Never print API keys.
Ways in
| Route | Source | Call | Required | Docs |
|---|---|---|---|---|
| Official | POST /invitations | API key in $CLERK_SECRET_KEY | Docs |
Workflows using Invite a user
No workflows yet
No published workflow uses Invite a user yet.