Learnosity

Learnosity is an Irish-founded assessment infrastructure company whose APIs are embedded into other companies' learning products rather than sold as a finished platform. The surface is split in two: a family of versioned client-side JavaScript APIs - Items, Assess, Questions, Question Editor, Author, Author Aide, Annotations, Events, Reports, Grading, Rubric Editor and Feedback Aide - that render assessment, authoring, grading and reporting experiences inside a host application, and a server-side Data API for Item bank content, learner sessions, responses, scoring, jobs, reports and consumer administration. Learnosity is explicitly not a REST API: every Data API call is an HTTP POST whose operation is chosen by an `action` parameter, and every request across every API carries an HMAC-SHA256 signed `security` object generated server-side by one of six official SDKs. Versions ship on a dated Long Term Support train (vYYYY.X.LTS) pinned in the URL, with regional endpoints in Virginia, Dublin, Sydney, California and Oregon.

Learnosity publishes 12 APIs on the APIs.io network. Tagged areas include Education, Assessment, EdTech, Learning, and Analytics.

Learnosity’s developer surface includes developer portal, documentation, API reference, getting-started guide, support, engineering blog, pricing, and 34 more developer resources.

🌐 Visit website 📡 Source on GitHub

55.2/100 strong ▬ flat Agent 9/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

12 APIs

Education Assessment EdTech Learning AnalyticsContent AuthoringArtificial Intelligence Accessibility Company

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 55.2/100 · strong

Contract Quality 1.4 / 21

Developer Ergonomics 12.1 / 17

Access Clarity 10.3 / 17

Operational Transparency 9.3 / 11

Contract Governance 1.9 / 10

Discoverability 6.9 / 9

Regulatory Posture 10.0 / 15

Agent readiness — 9/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Education & Research regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/learnosity: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 12

Individual APIs this provider publishes, each with its own machine-readable definition.

Learnosity Data API

Server-side JSON API for the Learnosity platform. Endpoint families cover Item bank content (Items, Questions, Features, Activities, Tags, Pools, Templates, Workflows), learner ...

Learnosity Items API

Client-side JavaScript API that renders and runs an assessment from an Activity in the Item bank, handling navigation, save and resume, response storage and submission.

Learnosity Assess API

The assessment player layer used by Items API in assess rendering mode, drivable directly for bespoke player experiences.

Learnosity Questions API

Renders individual Questions and Features inline without the surrounding assessment player - the lowest-level Learnosity rendering component.

Learnosity Author API

Full embeddable authoring environment for browsing, creating and editing Items, Questions, Features and Activities in the Item bank.

Learnosity Question Editor API

The single-Question editing widget, embeddable on its own inside a custom authoring UI.

Learnosity Reports API

Renders prebuilt learner and aggregate reports - individual reports, live progress and learner-centric reports - into the host application.

Learnosity Events API

Real-time client-side event channel used for live progress monitoring across in-flight assessment sessions.

Learnosity Annotations API

Adds annotation and markup capability - highlighting, notes - over assessment content.

Learnosity Grading API

Embeddable manual grading UI for scoring learner responses.

Learnosity Author Aide API

AI-assisted authoring component for generating and improving assessment content inside the host product.

Learnosity Feedback Aide

Embeddable AI scoring and feedback surface for open-response work, exposed through feedbackSession and feedbackSessionUI configuration.

Scroll for all 12

Rate Limits 1

Documented rate limits and quota policies.

Learnosity Rate Limits

15 limits

RATE LIMITS

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Learnosity Authentication

custom-hmac-signature · 1 scheme

SECURITY

Learnosity Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Learnosity Vulnerability Disclosure

security.txt · contact published

SECURITY

Learnosity Trust Center

ISO 27001, CSA STAR, EU-U.S. Data Privacy Framework (incl. UK Extension and Swiss-U.S. DPF)

SECURITY

Resources

Get Started 7

Portal, sign-up, and the first successful call

Portal

DeveloperPortal

GettingStarted

SignUp

Login

Demos

Demos

Sandbox

Sandbox

Scroll for all 7

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

ErrorCatalog

Components

DataModel

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 6

Authentication, authorization, and security posture

Authentication

Compliance

TrustCenter

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 7

Status, limits, changes, and where to get help

Support

HelpCenter

StatusPage

Deprecation

ChangeLog

ChangeLog

RateLimits

Scroll for all 7

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 4

The organization behind the API

Blog

BlogRSS

Website

Partners

Source (apis.yml)

aid: learnosity
name: Learnosity
description: 'Learnosity is an Irish-founded assessment infrastructure company whose APIs are embedded into other companies''
  learning products rather than sold as a finished platform. The surface is split in two: a family of versioned client-side
  JavaScript APIs - Items, Assess, Questions, Question Editor, Author, Author Aide, Annotations, Events, Reports, Grading,
  Rubric Editor and Feedback Aide - that render assessment, authoring, grading and reporting experiences inside a host application,
  and a server-side Data API for Item bank content, learner sessions, responses, scoring, jobs, reports and consumer administration.
  Learnosity is explicitly not a REST API: every Data API call is an HTTP POST whose operation is chosen by an `action` parameter,
  and every request across every API carries an HMAC-SHA256 signed `security` object generated server-side by one of six official
  SDKs. Versions ship on a dated Long Term Support train (vYYYY.X.LTS) pinned in the URL, with regional endpoints in Virginia,
  Dublin, Sydney, California and Oregon.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://learnosity.com/images/learnosity_logo.svg
url: https://raw.githubusercontent.com/api-evangelist/learnosity/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: enriched
x-tier-reason: enrichment-pipeline
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Education
- Assessment
- EdTech
- Learning
- Analytics
- Content Authoring
- Artificial Intelligence
- Accessibility
- Company
apis:
- aid: learnosity:data-api
  name: Learnosity Data API
  description: Server-side JSON API for the Learnosity platform. Endpoint families cover Item bank content (Items, Questions,
    Features, Activities, Tags, Pools, Templates, Workflows), learner sessions and responses, stateless scoring, long-running
    jobs, aggregate reports and datasets, consumer administration, and secure asset retrieval. All calls are POST with an
    `action` of get, set or update, addressed as /{LTS_VERSION}/{endpoint}, and must be signed with the Learnosity SDK.
  humanURL: https://help.learnosity.com/hc/en-us/articles/16458081309213-endpoints-Data-API
  baseURL: https://data.learnosity.com
  tags:
  - Data
  - Assessment
  - Reporting
  properties:
  - type: GettingStarted
    url: https://help.learnosity.com/hc/en-us/articles/360000758637-Getting-Started-With-the-Data-API
  - type: Authentication
    url: https://help.learnosity.com/hc/en-us/articles/360000754738-Security-and-Authentication
  - type: RateLimits
    url: rate-limits/learnosity-rate-limits.yml
  - type: ErrorCatalog
    url: errors/learnosity-error-codes.yml
- aid: learnosity:items-api
  name: Learnosity Items API
  description: Client-side JavaScript API that renders and runs an assessment from an Activity in the Item bank, handling
    navigation, save and resume, response storage and submission.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534045857949-Items-API-Initialization-Options
  baseURL: https://items.learnosity.com
  tags:
  - Assessment
  - Delivery
- aid: learnosity:assess-api
  name: Learnosity Assess API
  description: The assessment player layer used by Items API in assess rendering mode, drivable directly for bespoke player
    experiences.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534105833373-Assess-API-Initialization-Options
  baseURL: https://assess.learnosity.com
  tags:
  - Assessment
- aid: learnosity:questions-api
  name: Learnosity Questions API
  description: Renders individual Questions and Features inline without the surrounding assessment player - the lowest-level
    Learnosity rendering component.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534061467933-Questions-API-Initialization-Options
  baseURL: https://questions.learnosity.com
  tags:
  - Questions
  - Assessment
- aid: learnosity:author-api
  name: Learnosity Author API
  description: Full embeddable authoring environment for browsing, creating and editing Items, Questions, Features and Activities
    in the Item bank.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534074620189-Author-API-Initialization-Options
  baseURL: https://authorapi.learnosity.com
  tags:
  - Authoring
  - Content
- aid: learnosity:question-editor-api
  name: Learnosity Question Editor API
  description: The single-Question editing widget, embeddable on its own inside a custom authoring UI.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534061255965-Question-Editor-API-Initialization-Options
  baseURL: https://questioneditor.learnosity.com
  tags:
  - Authoring
- aid: learnosity:reports-api
  name: Learnosity Reports API
  description: Renders prebuilt learner and aggregate reports - individual reports, live progress and learner-centric reports
    - into the host application.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534075019677-Reports-API-Initialization-Options
  baseURL: https://reports.learnosity.com
  tags:
  - Analytics
  - Reporting
- aid: learnosity:events-api
  name: Learnosity Events API
  description: Real-time client-side event channel used for live progress monitoring across in-flight assessment sessions.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534106856221-Events-API-Initialization-Options
  baseURL: https://events.learnosity.com
  tags:
  - Event
  - Real-Time
  tags_raw:
  - Events
  - Realtime
- aid: learnosity:annotations-api
  name: Learnosity Annotations API
  description: Adds annotation and markup capability - highlighting, notes - over assessment content.
  humanURL: https://help.learnosity.com/hc/en-us/categories/16534076465693-Annotations-API-Initialization-Options
  baseURL: https://annotations.learnosity.com
  tags:
  - Annotations
  - Assessment
- aid: learnosity:grading-api
  name: Learnosity Grading API
  description: Embeddable manual grading UI for scoring learner responses.
  humanURL: https://help.learnosity.com/hc/en-us/categories/19985132524957-Grading-API-Initialization-Options
  baseURL: https://grading.learnosity.com
  tags:
  - Grading
  - Scoring
  properties:
  - type: GettingStarted
    url: https://help.learnosity.com/hc/en-us/articles/25283285367453-Getting-started-with-the-Grading-API
- aid: learnosity:author-aide-api
  name: Learnosity Author Aide API
  description: AI-assisted authoring component for generating and improving assessment content inside the host product.
  humanURL: https://help.learnosity.com/hc/en-us/categories/19776607605789-Author-Aide-API-Initialization-Options
  baseURL: https://authorapi.learnosity.com
  tags:
  - Artificial Intelligence
  - Authoring
  properties:
  - type: GettingStarted
    url: https://help.learnosity.com/hc/en-us/articles/19751636225181-Getting-started-with-the-Author-Aide-API
- aid: learnosity:feedback-aide
  name: Learnosity Feedback Aide
  description: Embeddable AI scoring and feedback surface for open-response work, exposed through feedbackSession and feedbackSessionUI
    configuration.
  humanURL: https://help.learnosity.com/hc/en-us/categories/22502911016989-Feedback-Aide
  baseURL: https://grading.learnosity.com
  tags:
  - Artificial Intelligence
  - Scoring
common:
- type: Portal
  url: https://help.learnosity.com/hc/en-us
- type: DeveloperPortal
  url: https://help.learnosity.com/hc/en-us
- type: Documentation
  url: https://help.learnosity.com/hc/en-us/categories/16266193425053-Developer-Documentation
- type: APIReference
  url: https://help.learnosity.com/hc/en-us/categories/16266193425053-Developer-Documentation
- type: GettingStarted
  url: https://help.learnosity.com/hc/en-us/articles/360000758637-Getting-Started-With-the-Data-API
- type: Support
  url: https://learnosity.com/platform/support/
- type: HelpCenter
  url: https://help.learnosity.com/hc/en-us
- type: Blog
  url: https://learnosity.com/edtech-blog/
- type: BlogRSS
  url: https://learnosity.com/edtech-blog/feed/
- type: GitHubOrganization
  url: https://github.com/Learnosity
- type: Pricing
  url: https://learnosity.com/licenses/
- type: SignUp
  url: https://learnosity.com/contact-sales/
- type: Login
  url: https://console.learnosity.com/login
- type: TermsOfService
  url: https://learnosity.com/terms-of-use/
- type: PrivacyPolicy
  url: https://learnosity.com/privacy-policy/
- type: Website
  url: https://learnosity.com/
- type: Partners
  url: https://learnosity.com/company/partners/
- type: Demos
  url: https://demos.learnosity.com/
- type: StatusPage
  url: https://status.learnosity.com
- type: Deprecation
  url: https://help.learnosity.com/hc/en-us/articles/360001268538-Release-Cadence-and-Version-Lifecycle
- type: ChangeLog
  url: https://help.learnosity.com/hc/en-us/articles/19629981258653-Developer-Release-Logs
- type: ChangeLog
  name: Learnosity changelog artifact
  url: changelog/learnosity-changelog.yml
- type: Lifecycle
  url: lifecycle/learnosity-lifecycle.yml
- type: Authentication
  url: authentication/learnosity-authentication.yml
- type: Conventions
  url: conventions/learnosity-conventions.yml
- type: ErrorCatalog
  url: errors/learnosity-error-codes.yml
- type: RateLimits
  url: rate-limits/learnosity-rate-limits.yml
- type: Packages
  url: packages/learnosity-packages.yml
- type: SDKs
  url: packages/learnosity-packages.yml
- type: Sandbox
  url: sandbox/learnosity-sandbox.yml
- type: Components
  url: components/learnosity-components.yml
- type: DataModel
  url: data-model/learnosity-data-model.yml
- type: Conformance
  url: conformance/learnosity-conformance.yml
- type: Compliance
  url: https://learnosity.com/platform/security/
- type: TrustCenter
  url: security/learnosity-trust-center.yml
- type: Security
  url: https://learnosity.com/product-security-policy/
- type: VulnerabilityDisclosure
  url: security/learnosity-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/learnosity-domain-security.yml
- type: WellKnown
  url: well-known/learnosity-well-known.yml
- type: LLMsTxt
  url: llms/learnosity-llms.txt
- type: X-MCPServerCandidate
  url: mcp/learnosity-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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