A lot of integration setup feels more confusing than it should because teams encounter two connection models at once: OAuth and API keys.
The useful question is not which one is better in the abstract. The useful question is which one fits the tool you are trying to connect and the workflow you want to run.
OAuth in plain language
OAuth is common when a product needs secure access to another app on your behalf.
That is usually the right pattern for tools like:
- Gmail
- Slack
- GitHub
- Google Workspace
From the user perspective, OAuth usually means:
- click connect
- sign in with the provider
- approve the requested permissions
- return to the product with the connection active
This is often the cleanest experience for major SaaS tools.
API keys in plain language
API keys are more common when a tool exposes programmable access directly and the user is expected to paste a credential.
That is often the case for:
- some databases and developer tools
- web extraction services
- niche SaaS products
- internal services with admin-issued credentials
This approach is simple, but it requires careful handling because the credential is sensitive.
Which one should you use?
Use the connection method supported by the provider. The important practical difference is what the team needs to do during setup.
OAuth is usually better when:
- the provider supports it well
- a non-technical user needs a guided setup path
- the connection should be easy to revoke or re-authorize
API keys are usually fine when:
- the provider expects key-based access
- the team is connecting an internal or technical tool
- the credential is already managed operationally
Why this matters inside allv
allv supports both patterns because real operations stacks use both patterns.
That is part of what Connections are for. Some apps connect through OAuth, others through API keys, and both need to land inside one workspace so the workflow can use them consistently.
If you are designing cross-app workflows, the next step after connection is usually Workflows. And if you want the simplest path into the full product, the lifetime deal is the easiest way to start.