> ## Documentation Index
> Fetch the complete documentation index at: https://docs.learningcommons.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Overview of the Knowledge Graph API, including base URL, authentication, and endpoints for curriculum, standards, and learning components.

<EarlyAccess />

The Learning Commons API provides programmatic access to Knowledge Graph data:

### [Standards](/knowledge-graph/schema-reference/standards)

| Dataset                                                                                                                                  | Description                                                                                              | REST API endpoints                                                                    |
| :--------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------ |
| [U.S. academic standards](/knowledge-graph/datasets/standards/us-academic-standards)                                                     | Official learning expectations across U.S. states and subjects                                           | [Academic standards](/api-reference/academic-standards/standards-frameworks)          |
| [U.S. academic standards crosswalks](/knowledge-graph/datasets/standards/us-academic-standards-crosswalks)                               | Similarity matches between state and <Tooltip tip="Common Core State Standards">CCSS</Tooltip> standards | [Standards crosswalks](/api-reference/standards-crosswalks/crosswalks-for-a-standard) |
| [English Language Development Standards Framework](/knowledge-graph/datasets/standards/english-language-development-standards-framework) | Official language development expectations for multilingual learners                                     | [Academic standards](/api-reference/academic-standards/standards-frameworks)          |
| [XQ Competencies](/knowledge-graph/datasets/standards/xq-competencies)                                                                   | Durable-skill learner outcomes and competencies                                                          | [Durable skills](/api-reference/durable-skills/durable-skills-frameworks)             |
| [Carnegie Skills Progressions](/knowledge-graph/datasets/standards/carnegie-skills-progressions)                                         | Collaboration, Communication, and Critical Thinking                                                      | [Durable skills](/api-reference/durable-skills/durable-skills-frameworks)             |

### [Learning components](/knowledge-graph/schema-reference/learning-components)

| Dataset                                                                                            | Description                                                                                          | REST API endpoints                                                                           |
| :------------------------------------------------------------------------------------------------- | :--------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------- |
| [Math learning components](/knowledge-graph/datasets/learning-components/math-learning-components) | Granular Math skills and concepts aligned to standards                                               | [Learning components](/api-reference/learning-components/learning-components-for-a-standard) |
| [ELA learning components](/knowledge-graph/datasets/learning-components/ela-learning-components)   | Granular <Tooltip tip="English Language Arts">ELA</Tooltip> skills and concepts aligned to standards | [Learning components](/api-reference/learning-components/learning-components-for-a-standard) |

### [Learning progressions](/knowledge-graph/schema-reference/learning-progressions)

| Dataset                                                                                  | Description                                                     | REST API endpoints                                                                                                                                                                                                                                                                                                                                   |
| :--------------------------------------------------------------------------------------- | :-------------------------------------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Math Coherence Map](/knowledge-graph/datasets/learning-progressions/math-coherence-map) | Prerequisite and successor relationships between math standards | <ul><li>[Prerequisites for a standard](/api-reference/academic-standards/prerequisites-for-a-standard)</li><li>[Standards a standard builds towards](/api-reference/academic-standards/standards-a-standard-builds-towards)</li><li>[Related standards for a standard](/api-reference/academic-standards/related-standards-for-a-standard)</li></ul> |

### [Curriculum](/knowledge-graph/schema-reference/curriculum)

| Dataset                                                   | Description                                                           | REST API endpoints                                              |
| :-------------------------------------------------------- | :-------------------------------------------------------------------- | :-------------------------------------------------------------- |
| [IM® v.360](/knowledge-graph/datasets/curriculum/im-v360) | Open scope and sequence; gated instructional and assessment materials | [Curriculum](/api-reference/curriculum/courses-in-a-curriculum) |

### [Instructional guidance](/knowledge-graph/schema-reference/instructional-guidance)

| Dataset                                                                                                         | Description                                                        | REST API endpoints |
| :-------------------------------------------------------------------------------------------------------------- | :----------------------------------------------------------------- | :----------------- |
| [Learner Variability Navigator](/knowledge-graph/datasets/instructional-guidance/learner-variability-navigator) | Learner factors and instructional strategies from Digital Promise® | Not yet supported  |

## How to use the API

|                    |                                                                                                                                           |
| :----------------- | :---------------------------------------------------------------------------------------------------------------------------------------- |
| **Base URL**       | `https://api.learningcommons.org/knowledge-graph/v0`                                                                                      |
| **Authentication** | [Generate an API key](https://platform.learningcommons.org/api-keys/) ↗ and include it in the request header as `x-api-key: YOUR_API_KEY` |

## Related topics

<CardGroup cols={2}>
  <Card title="Standards schema reference" icon="certificate" href="/knowledge-graph/schema-reference/standards">
    Review entities, relationships, and property definitions for Standards.
  </Card>

  <Card title="Learning components schema reference" icon="puzzle-piece" href="/knowledge-graph/schema-reference/learning-components">
    Review entities, relationships, and property definitions for Learning
    Components.
  </Card>

  <Card title="Curriculum schema reference" icon="book-open" href="/knowledge-graph/schema-reference/curriculum">
    Review entities, relationships, and property definitions for Curriculum.
  </Card>
</CardGroup>