aid: riiid
url: https://raw.githubusercontent.com/api-evangelist/riiid/refs/heads/main/apis.yml
name: Riiid
kind: company
description: Riiid (now operating as Socra AI) is an AI education technology company
  whose proprietary deep-knowledge-tracing and score-prediction models power adaptive
  learning. Its consumer product Santa (AI TOEIC / TOEFL test prep) and its R.Inside
  AI-as-a-Service offering bring real-time student modeling to partners. Riiid does
  not publish a public, self-serve developer API; its AI is delivered through B2B
  partner integrations and packaged products.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- AI
- Education
- Adaptive Learning
- Knowledge Tracing
- EdTech
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.19'
apis:
- aid: riiid:adaptive-learning
  name: Riiid Adaptive Learning
  tags:
  - Adaptive Learning
  - Personalization
  - Recommendation
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://corp.socra.ai/
  properties:
  - url: https://corp.socra.ai/
    type: Documentation
  - url: openapi/riiid-openapi.yml
    type: OpenAPI
  description: Riiid's adaptive learning engine analyzes learner interaction data in
    real time to recommend personalized study paths and content. It is delivered
    inside Riiid/Socra products (Santa) and to partners via integration, not as a
    documented public self-serve API.
- aid: riiid:knowledge-tracing
  name: Riiid Knowledge Tracing
  tags:
  - Knowledge Tracing
  - Score Prediction
  - Deep Learning
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://corp.socra.ai/
  properties:
  - url: https://corp.socra.ai/
    type: Documentation
  - url: https://github.com/riiid/ednet
    type: SourceCode
  - url: openapi/riiid-openapi.yml
    type: OpenAPI
  description: Proprietary deep knowledge tracing and score-prediction models (built
    on 100M+ student interactions, the EdNet dataset) estimate a learner's mastery
    and predict test outcomes in real time. Exposed through Riiid products and partner
    solutions; no public API endpoint is documented.
- aid: riiid:santa
  name: Riiid Santa
  tags:
  - Santa
  - Test Prep
  - TOEIC
  - TOEFL
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://apps.apple.com/us/app/santa-ai-toeic/id1148006701
  properties:
  - url: https://corp.socra.ai/
    type: Documentation
  - url: https://apps.apple.com/us/app/santa-ai-toeic/id1148006701
    type: Signup
  - url: openapi/riiid-openapi.yml
    type: OpenAPI
  description: Santa is Riiid's consumer AI tutor app for standardized English tests
    (TOEIC, and TOEFL via an ETS content partnership). It is distributed as iOS /
    Android mobile applications with no documented public developer API.
- aid: riiid:partner-solutions
  name: Riiid Partner Solutions
  tags:
  - Partner Solutions
  - AIaaS
  - B2B
  - R.Inside
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://corp.socra.ai/
  properties:
  - url: https://corp.socra.ai/
    type: Documentation
  - url: openapi/riiid-openapi.yml
    type: OpenAPI
  description: B2B / AI-as-a-Service (R.Inside) engagements that embed Riiid's adaptive
    learning and knowledge-tracing AI into partner education platforms. Access is
    sales-led and contract-based via partnership@socra.ai; no public self-serve API
    is published.
common:
- type: GitHubOrganization
  url: https://github.com/riiid
- type: LinkedIn
  url: https://www.linkedin.com/company/riiid
- type: Website
  url: https://www.riiid.com
- type: Documentation
  url: https://corp.socra.ai/
- type: Plans
  url: plans/riiid-plans-pricing.yml
- type: RateLimits
  url: rate-limits/riiid-rate-limits.yml
- type: FinOps
  url: finops/riiid-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com