> ## 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. # Dependency map for a curriculum > Returns the dependency relationships between lesson groupings within a curriculum. Dependencies represent prerequisite relationships between lesson groupings (units, sections, modules). A dependency from source → target means the target is a prerequisite — it should be taught before the source. Use this endpoint when you need to: - Visualize the dependency graph for a curriculum - Understand prerequisite relationships between units or sections - Build a dependency-aware course planner or sequencing tool ## OpenAPI ````yaml /api-reference/knowledge-graph-api/openapi.yaml get /curriculums/{curriculumId}/dependency-map openapi: 3.0.3 info: title: Learning Commons Knowledge Graph REST API description: > REST API for accessing education knowledge graph data including academic standards, learning components, and curriculum information. **Key datasets:** - **Academic Standards**: Official state standards from all 50 U.S. states sourced from 1EdTech's CASE Network - **Learning Components**: Granular, teachable skills that break down broad standards into actionable instructional units - **Standards Crosswalks**: Connections between standards and frameworks - **Curriculum**: Structured course content including courses, lesson groupings (units, sections, modules), lessons, activities, and assessments **Learn more:** - [Knowledge Graph Overview](/knowledge-graph/understanding-knowledge-graph/introduction) - [Academic Standards](/knowledge-graph/graph-reference/academic-standards) - [Learning Components](/knowledge-graph/graph-reference/learning-components) - [Standards Crosswalks](/knowledge-graph/graph-reference/standards-crosswalks) - [Curriculum](/knowledge-graph/graph-reference/curriculum) - [Quickstart](/knowledge-graph/getting-started/quickstart) version: '0' servers: - url: https://api.learningcommons.org/knowledge-graph/v0 description: Production server security: - ApiKeyAuth: [] tags: - name: Academic Standards description: Academic standards operations - name: Curriculum description: Curriculum operations - name: Hierarchy description: Hierarchical navigation operations - name: Learning Components description: Learning components operations - name: Learning Progressions description: Learning progressions operations - name: Search description: Search and discovery operations - name: Standards Crosswalks description: Standards crosswalks operations paths: /curriculums/{curriculumId}/dependency-map: get: tags: - Curriculum summary: Dependency map for a curriculum description: > Returns the dependency relationships between lesson groupings within a curriculum. Dependencies represent prerequisite relationships between lesson groupings (units, sections, modules). A dependency from source → target means the target is a prerequisite — it should be taught before the source. Use this endpoint when you need to: - Visualize the dependency graph for a curriculum - Understand prerequisite relationships between units or sections - Build a dependency-aware course planner or sequencing tool operationId: getCurriculumDependencyMap parameters: - name: curriculumId in: path required: true description: Unique identifier for the resource in Knowledge Graph schema: $ref: '#/components/schemas/CurriculumIdENUM' - $ref: '#/components/parameters/LimitParam' - $ref: '#/components/parameters/CursorParam' responses: '200': description: Successfully retrieved paginated dependency map content: application/json: schema: $ref: '#/components/schemas/DependencyMapResponse' example: dependencies: - source: im:87b50a26-acbf-5798-ac94-ca1423679acd sourceName: Angles, Triangles, and Prisms sourceCurriculumLabel: Unit hasDependency: - identifier: im:a0e15ae9-dd70-5df0-93ad-9d6b99fc5ad2 name: Area and Surface Area curriculumLabel: Unit - identifier: im:c5f3b8d1-4e92-5a6c-b7d8-2f1e9a3c6b4d name: Angles and Angle Measurement curriculumLabel: Unit - source: im:d4e2f1a0-8b7c-5d3e-9f6a-1c2b4d5e8f7a sourceName: Constructions sourceCurriculumLabel: Section hasDependency: - identifier: im:e7f6a5b4-3c2d-5e1f-8a9b-0d1c2e3f4a5b name: Defining Rigid Transformations curriculumLabel: Section pagination: limit: 100 nextCursor: >- eyJpZGVudGlmaWVyIjoiaW06ZDRlMmYxYTAtOGI3Yy01ZDNlLTlmNmEtMWMyYjRkNWU4ZjdhIn0= hasMore: true '400': description: Bad request - Invalid query parameters content: application/json: schema: $ref: '#/components/schemas/Error' example: error: ValidationError message: Invalid cursor format requestId: req_12345 '422': description: Unprocessable Entity - Invalid curriculumId value content: application/json: schema: $ref: '#/components/schemas/Error' example: error: ValidationError message: Input should be 'im360' requestId: req_12345 '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/Error' example: error: InternalServerError message: >- An unexpected error occurred while retrieving the dependency map requestId: req_12345 components: schemas: CurriculumIdENUM: type: string description: Unique identifier for the resource in Knowledge Graph enum: - im360 DependencyMapResponse: type: object required: - dependencies - pagination properties: dependencies: type: array items: $ref: '#/components/schemas/Dependency' description: Dependency relationships between lesson groupings, grouped by source pagination: $ref: '#/components/schemas/Pagination' Error: type: object description: Standard error response object returned for all error conditions required: - error - message - requestId properties: error: type: string description: >- Machine-readable error type identifier (e.g., `ValidationError`, `NotFoundError`, `InternalServerError`) message: type: string description: >- Human-readable error message that explains what went wrong and may include actionable guidance requestId: type: string description: Unique identifier for this request (for debugging and support) details: type: object description: >- Optional additional details about the error, such as validation failures or field-specific issues additionalProperties: true Dependency: type: object description: >- Lesson grouping and the other lesson groupings it depends on (prerequisites). required: - source - hasDependency properties: source: type: string description: Unique identifier for the resource in Knowledge Graph sourceName: type: string description: Name or title of the resource sourceCurriculumLabel: type: string description: >- Curriculum label of the source lesson grouping (e.g., "Unit", "Section") hasDependency: type: array items: $ref: '#/components/schemas/DependencyTarget' description: >- Lesson groupings that this source has a dependency on (prerequisites) Pagination: type: object description: Cursor-based pagination metadata required: - limit - hasMore properties: limit: type: integer description: Maximum number of results to return per page nextCursor: type: string nullable: true description: >- Cursor for fetching the next page of results in your next request (`null` if there are no more results) hasMore: type: boolean description: Whether there are more results after this page DependencyTarget: type: object description: Lesson grouping that is depended upon (a prerequisite). required: - identifier properties: identifier: type: string description: Unique identifier for the resource in Knowledge Graph name: type: string description: Name or title of the resource curriculumLabel: type: string description: >- Curriculum label of the target lesson grouping (e.g., "Unit", "Section") parameters: LimitParam: name: limit in: query required: false description: Maximum number of results to return schema: type: integer minimum: 1 maximum: 1000 default: 100 CursorParam: name: cursor in: query required: false description: >- Pagination cursor obtained from the `nextCursor` field in a previous response (not needed for the first page) schema: type: string securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key description: API key for authentication ````