# Claim controllers * Geographical constraint controller: Allowed and Banned countries lists * Time constraint controller: Start and end time * PLAUS closure constraint (PLAUS can be closed by the issuer) * GitHub constraint controller: Claimers must have contributed to a repository with optional settings of validation and approval based on PRs, Status, and Labels * Distribution list constraint controller: A distribution list of target accounts that makes only those accounts eligible for claim * Email registration: Valid email registration through a distribution list. Only those with valid emails on that list will be able to claim * NFT Gate: Checking ownership and holding of one or two tokens. Only those who hold those configured tokens will be able to claim * WebAuthn Controller: Security constraint which assures single claim per device instead of browser using web crypto APIs and WebAuthn , PKC and passkeys. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.goplausible.xyz/features/claim-controllers.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.