Xentree English

Xentree English, or XEL, is a guided English-learning experience powered by AI.

Core capabilities

list learning modules and progress

start and complete modules

submit reading, writing, listening, and speaking tasks

run AI-based evaluation

track XPI scoring and dashboard progress

save transcript history from learning sessions

Authentication and scopes

XEL endpoints support both bearer and API key auth.

Recommended API key scopes:

xel:read for modules and dashboard read flows

xel:write for task submission and evaluation flows

Main endpoints

Modules and progress

GET /api/learn/english/modules

GET /api/learn/english/modules/{module_id}

POST /api/learn/english/modules/{module_id}/start

POST /api/learn/english/modules/{module_id}/complete

Tasks and evaluation

POST /api/learn/english/tasks/submit

POST /api/learn/english/tasks/regenerate

POST /api/learn/english/evaluate

Scoring and dashboard

GET /api/learn/english/dashboard

GET /api/learn/english/xpi

GET /api/learn/english/xpi/history

Sessions and transcripts

POST /api/learn/english/sessions/start

POST /api/learn/english/sessions/end

POST /api/learn/english/transcripts

GET /api/learn/english/transcripts/{session_id}

Example task submission

{
  "module_id": "1",
  "task_id": "writing-1",
  "skill": "writing",
  "response": "I would introduce myself confidently in a short paragraph.",
  "time_spent_seconds": 180
}

Who this is for

Use XEL APIs when you want a structured, trackable, and AI-assisted English learning workflow inside the Xentree platform.

Core capabilities#

Authentication and scopes#

Main endpoints#

Modules and progress#

Tasks and evaluation#

Scoring and dashboard#

Sessions and transcripts#

Example task submission#

Who this is for#