Clever
Clever is a US K-12 identity and rostering service that sits between a district's student information system and the applications that need roster data. Districts usually say "we use Clever" and mean one of three fairly different things.
| Product | What it does | Who pays | What it needs from the district |
|---|---|---|---|
| Secure Sync (rostering) | Pulls students, staff, sections and enrolments from the SIS and shares an approved subset with each approved application | Free to the district; applications pay for access | SIS credentials or an on-district sync agent, plus a per-application sharing approval |
| Clever SSO / Portal | A launch page where students sign in once and open their applications | Free tier, paid tiers for extras | An identity source and per-application login configuration |
| Instant Login | The login handshake itself, used by applications that federate to Clever | Bundled with SSO | The application must have implemented it |
| Library | A catalogue of applications a district can turn on | Free to browse | Nothing |
How the data actually flows, and where you keep control
The path is SIS → Clever → application, and the control point is the middle arrow. Clever holds a copy of the district's roster; each application requests a scope of that roster; and the district approves or denies that request per application. Nothing reaches a vendor that the district did not approve, and approvals are revocable.
That per-application approval is genuinely the useful part. It converts a series of bespoke SIS integrations, each with its own credentials and its own extract job, into one integration plus a permissions screen. For a district running forty applications, that is the difference between a manageable data programme and an unmanageable one.
Two practical consequences that districts discover late:
- The share is a subset, and the subset has an edge. The standard student and staff share is built around instruction. Which fields flow, and which are optional, is a per-district configuration — verify rather than assume.
- Clever is not the system of record. A field that is blank in the SIS is blank in Clever. Rostering intermediaries make bad data travel faster; they do not improve it.
The part that matters for school-home messaging
Clever's centre of gravity is students, staff and sections — the data an instructional application needs. School-home communication needs something different: guardians, their relationship to each student, their phone numbers and email addresses, their contact rank, their preferred language, and their consent state.
Guardian contact data sits outside the standard student and staff share, and consent state does not exist in any rostering standard at all — it is generated by families interacting with the messaging system, not by the SIS. So a comms platform that rosters through Clever will typically still need a guardian feed from somewhere, and it will always need to own consent itself.
Where Kastr stands. We are not in the Clever library and we do not implement Clever Instant Login. Our authentication is a magic link — 32 random bytes, 15-minute single-use token, same-device binding, no password to phish and no account enumeration — and it is the only authentication we ship. If Clever SSO is a hard procurement requirement for your staff, we do not meet it today and you should weigh that seriously. Rostering is a different matter: anything that can emit a OneRoster-shaped file or POST JSON can feed /api/v1/roster/sync.
Deciding whether you need it
Clever is close to free for a district and solves a real integration-sprawl problem, so the question is rarely whether to use it. The questions worth asking are narrower:
- Which half are you actually buying? Rostering and SSO are separable. Plenty of districts roster through Clever and authenticate through Google or Entra.
- What does the approval screen show your team? The per-application share is a data-governance artefact. Somebody should be reviewing it annually, and in most districts nobody is.
- What happens when a vendor is not in the library? A district can still receive its own roster and feed it onward. A vendor requiring library membership before it will accept your data is telling you something about its integration surface.
- Does the intermediary become the lock-in? The whole argument for standards-based rostering is portability. That argument holds only if your applications consume standard shapes rather than one intermediary's proprietary handshake.
ClassLink occupies the same position with a different commercial posture and a different deployment model, and a fair number of districts run both.
Questions people actually ask
Is Clever free for districts?
Rostering is free to the district; the applications receiving data pay for access. The SSO portal has a free tier with paid options for additional capability. The real cost to a district is the internal effort of maintaining sync configuration and reviewing per-application data shares.
Does Clever share parent contact information with vendors?
Guardian contact detail is outside the standard student and staff share that rostering is built around. Coverage varies by district configuration, so a school-home communications platform generally needs a guardian feed arranged separately. Confirm field by field rather than assuming.
What is the difference between Clever Secure Sync and Clever SSO?
Secure Sync moves roster data from the SIS to approved applications. SSO lets a user sign in once and launch applications from a portal. They are commonly bought together and are technically independent; a district can use either without the other.
Can a district use Clever for rostering without using Clever SSO?
Yes, and many do — rostering through Clever while authenticating staff and students through Google Workspace or Microsoft Entra. If a vendor tells you rostering requires their SSO handshake, that is a product limitation rather than a Clever one.
One price. Every feature. Locked for three years.
$3.50 per student per year under 5,000 students. No tiers, no add-on modules, no per-message fees. Published on the site because you should not have to book a call to learn a price.