> ## Documentation Index
> Fetch the complete documentation index at: https://www.zkcompression.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Examples

> Example projects for building ZK programs on Solana.

<Accordion title="Agent skill">
  Use the [zk-nullifier](https://github.com/Lightprotocol/skills/tree/main/skills/zk-nullifier) agent skill to build privacy-preserving ZK programs with nullifiers:

  ```
  npx skills add Lightprotocol/skills
  ```

  For orchestration, install the [general skill](https://zkcompression.com/skill.md):

  ```bash theme={null}
  npx skills add https://zkcompression.com
  ```
</Accordion>

|                                                                                          | Description                                                                                                                     |
| :--------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------ |
| [ZK-ID](https://github.com/Lightprotocol/program-examples/tree/main/zk/zk-id)            | Identity verification using Groth16 proofs. Issuers create credentials; users prove ownership without revealing the credential. |
| [Nullifier](https://github.com/Lightprotocol/program-examples/tree/main/zk/zk-nullifier) | Simple Program to Create Nullifiers.                                                                                            |