# Verify Credential - Python sample code Verifies that a specific credential exists on the XRPL and is valid. Quick install & usage: ```sh python -m venv .venv source .venv/bin/activate pip install -r requirements.txt ./verify_credential.py ``` `verify_credential.py` can also be used as a commandline utility. Full usage statement: ```sh $ ./verify_credential.py -h usage: verify_credential.py [-h] [-b] [-n {devnet,testnet,mainnet}] [issuer] [subject] [credential_type] Verify an XRPL credential positional arguments: issuer Credential issuer address as base58. subject Credential subject (holder) address as base58. credential_type Credential type as string options: -h, --help show this help message and exit -b, --binary Use binary (hexadecimal) for credential_type -n, --network {devnet,testnet,mainnet} Use the specified network for lookup ```