LTI is the 1EdTech standard for launching an external learning tool from inside a course, carrying the user’s identity, role and course context with it. LTI 1.3 rebuilt the handshake on OAuth 2.0 and OpenID Connect, and LTI Advantage added services for grade return, roster access and deep linking. It is the most widely implemented education standard in the world.
LTI
LTI answers the question every learning platform faces: how does a third-party tool appear inside a course, know who the student is, know whether they are a learner or an instructor, and send a grade back — without the institution wiring a bespoke integration for every tool it buys.
- A signed launch - LTI 1.3 uses OpenID Connect and signed JWTs, so the tool can trust who is calling and in what role.
- Names and Role Provisioning - A roster service, so a tool can see the members of the course it was launched into.
- Assignment and Grade Services - Grades travel back to the gradebook over a defined API rather than a CSV.
- Deep Linking - An instructor can place specific tool content into a course, not just a generic launch point.
- Certified conformance - 1EdTech runs a certification programme, and the badge is the market’s trust signal.
LTI is the clearest case in the catalog of a standard that is genuinely adopted and almost never published. Every major learning platform implements it, the specification is public and mature, and in an 814-organization education market scored for The State of Education & EdTech APIs, the nouns LTI defines — courses, roles, memberships, line items — appear nowhere near the top of the published contracts. The implementations live behind per-institution integrations, so conformance is real and invisible.
Referenced in API Evangelist papers
This standard shows up in my published research. These reports read the machine-readable evidence provider by provider — and put this standard in the context of a real sector.
The State of Education & EdTech APIs
LTI's nouns — courses, roles, memberships, grade line items — appear nowhere near the top of the published contracts of an 814-organization market, because conformance lives behind per-institution integrations rather than in anything an outsider can fetch.
