API Key
A unique identifier used to authenticate requests to an API. API keys must be stored securely, as a leaked key can grant unauthorized access to services and data.
An API key is a string of characters assigned to a developer or application to authenticate requests made to a web API. Unlike user passwords, API keys typically grant programmatic access, meaning a compromised key can allow automated, large-scale abuse of a service.
API keys should never be hardcoded into source code, stored in version control, or shared over unencrypted channels. Best practices include storing them in environment variables, secrets managers, or a team password manager with access logging.
For teams managing multiple SaaS integrations, a shared password vault ensures API keys are accessible to those who need them while maintaining an audit trail of who accessed each key and when.
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