# Validation * Are there KYC / AML checks? * Is there a max cap on tokens? * What if that cap is per-participant? * Is there a starting and ending time frame? There are a bunch of different validation requirements that your crowdsale might be a part of: ### CappedCrowdsale Adds a cap to your crowdsale, invalidating any purchases that would exceed that cap ### IndividuallyCappedCrowdsale Caps an individual’s contributions. ### WhitelistCrowdsale Only allow whitelisted participants to purchase tokens. this is useful for putting your KYC / AML whitelist on-chain! ### TimedCrowdsale Adds an `openingTime` and `closingTime` to your crowdsale --- # 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.launchifi.xyz/crowdsale/validation.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.