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LTI 1.3 explained: integrating tools into your LMS

LTI 1.3 explained without jargon: what it is, how OIDC login works, grade passback via AGS, and how to integrate a tool into Canvas, Moodle or Blackboard.

2026-06-22 8 min
Resposta curta

LTI 1.3 (Learning Tools Interoperability) is the open standard that integrates external tools inside an LMS (Canvas, Moodle, Blackboard) securely: the student accesses the tool without a new login (via OIDC), in the course context, and grades flow back to the gradebook automatically via AGS. To integrate, you register the tool in the LMS (Client ID), exchange keys (JWKS), define placements and enable AGS. It's what lets you add AI or gamification to an existing LMS without replacing it.

LTI 1.3 is the standard that makes LMSs and external tools talk to each other. It's what lets you, for example, add an AI tutor or gamification inside Canvas or Moodle without switching platforms. Here's the concept without jargon and how to integrate.

Quick answer

  • LTI 1.3 = open standard to integrate external tools into the LMS
  • Login without a new password (OIDC), in the course context
  • AGS returns the tool's grades to the gradebook automatically
  • Different from SCORM (which is static content, not a live tool)
  • Enables gradual migration and coexistence without disruption

How it works (in 3 parts)

  1. Login (OIDC): the LMS starts a secure login; the tool trusts the LMS via JWT tokens validated by JWKS.
  2. Launch in context: the student opens the tool already in the course/class context, with no new login.
  3. Grade passback (AGS): the grade generated in the tool returns to the LMS gradebook automatically.

Integration step by step

  1. Register the tool in the LMS via Client ID / developer key (login and launch URLs).
  2. Exchange keys (JWKS) on both sides to validate tokens.
  3. Define placements (where the tool appears).
  4. Enable AGS for automatic grade passback.
  5. Test the launch as a teacher and as a student.

LTI 1.3 vs SCORM (don't confuse them)

AspectSCORMLTI 1.3
What it isPackaged contentTool integration
Where it runsInside the LMSOn the tool's server
GradesLimitedAutomatic AGS
StudeiaNot supportedSupported

When to use LTI instead of replacing the LMS

For a large university already standardized on Canvas/Moodle, adding a tool (AI, gamification) via LTI 1.3 is more realistic than migrating everything — coexistence without disruption, with the option to migrate gradually later.

FAQ

What is LTI 1.3? The open standard that integrates external tools into the LMS with secure login and grade passback.

Difference from SCORM? SCORM is static content; LTI connects a live tool. Studeia supports LTI, not SCORM.

What is AGS? The service that returns the tool's grades to the LMS gradebook automatically.

Do I need LTI or replace the LMS? For large, LTI avoids replacement; for smaller, replacing may pay off.

See the LTI 1.3 integration and how to connect to Canvas and Moodle.

FAQ

What is LTI 1.3?

LTI (Learning Tools Interoperability) 1.3 is the open standard that lets you integrate external tools inside an LMS (Canvas, Moodle, Blackboard) securely. The student accesses the tool without a new login, in the course context, and grades can flow back to the gradebook automatically via AGS.

What's the difference between LTI 1.3 and SCORM?

SCORM packages static content to run inside the LMS; LTI 1.3 connects a live tool (running on its own server) to the LMS, with secure login and grade passback. They're different things: SCORM is content, LTI is tool integration. Studeia supports LTI 1.3, not SCORM.

What is AGS (grade passback)?

AGS (Assignment and Grade Service) is the part of LTI 1.3 that returns grades generated in the external tool to the LMS gradebook automatically. Without AGS, the teacher would post grades manually — with AGS, syncing is automatic.

Do I need LTI 1.3 or can I just replace the LMS?

It depends. For large, standardized institutions, LTI 1.3 lets you add a tool (AI, gamification) without switching the LMS — coexistence without disruption. For smaller institutions, replacing may pay off. LTI is what enables gradual migration.

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LTI 1.3 explained: integrating tools into your LMS