> ## 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 - **Curriculum**: Structured course content including courses, lesson groupings (units, sections, modules), lessons, activities, and assessments - **Learning components**: Granular, teachable skills that break down broad standards into actionable instructional units - **Relationships**: Hierarchical and semantic connections between standards, learning components, and frameworks **Learn more:** - [Knowledge Graph Overview](/knowledge-graph/understanding-knowledge-graph/about-knowledge-graph) - [Academic Standards Dataset](/knowledge-graph/entity-and-relationship-reference/academic-standards) - [Learning Components Dataset](/knowledge-graph/entity-and-relationship-reference/learning-components) - [Quick Start Guide](/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 and course operations - name: Hierarchy description: Hierarchical navigation operations - name: Learning components description: Learning component operations - name: Learning progressions description: Learning progression and prerequisite relationships - name: Search description: Search and discovery operations - name: Standards crosswalks description: Standards crosswalk operations - name: Standards frameworks description: Standards frameworks 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: The identifier for the curriculum to retrieve dependencies for. schema: $ref: '#/components/schemas/CurriculumIdENUM' - $ref: '#/components/parameters/LimitParam' - $ref: '#/components/parameters/CursorParam' responses: '200': description: Successfully retrieved 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: Curriculum identifier enum: - im360 DependencyMapResponse: type: object description: >- Paginated dependency map for a curriculum, listing dependency relationships between lesson groupings grouped by source. required: - dependencies - pagination properties: dependencies: type: array items: $ref: '#/components/schemas/Dependency' description: >- List of dependency relationships between lesson groupings, grouped by source pagination: 40b3f2aa-1c64-41b6-90c6-1508f5ec0108 Error: type: object description: Standard error response object returned for all error conditions required: - error - message - requestId properties: error: type: string description: >- A machine-readable error type identifier (e.g., ValidationError, NotFoundError, InternalServerError) message: type: string description: >- A human-readable error message that explains what went wrong and may include actionable guidance requestId: type: string description: >- A unique identifier for this request, useful 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: >- A lesson grouping and the other lesson groupings it depends on (prerequisites). required: - source - hasDependency properties: source: type: string description: The identifier of the source lesson grouping sourceName: type: string description: The name of the source lesson grouping sourceCurriculumLabel: type: string description: >- The 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) DependencyTarget: type: object description: A lesson grouping that is depended upon (a prerequisite). required: - identifier properties: identifier: type: string description: The unique identifier of the target lesson grouping name: type: string description: The name of the target lesson grouping curriculumLabel: type: string description: >- The 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. Default is 100. Maximum allowed is 1000. schema: type: integer minimum: 1 maximum: 1000 default: 100 CursorParam: name: cursor in: query required: false description: >- Cursor for pagination. Obtain this value from the 'nextCursor' field in the previous response. Omit for the first page. schema: type: string securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key description: >- API key for authentication. Include your API key in the x-api-key header for all requests. ````