# NGSS Standards > Next Generation Science Standards search and curriculum mapping. ## Website https://www.nextgenscience.org ## Portal https://ngss-standards.on.xpay.sh ## MCP Servers ### NGSS Standards Next Generation Science Standards search and curriculum mapping URL: https://ngss-standards.mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY Tools: - get_standard: Retrieve a specific NGSS standard by its code identifier (e.g., MS-PS1-1, MS-LS2-3, MS-ESS3-1) ($0.01/call) - search_by_domain: Find all NGSS standards in a specific science domain (Physical Science, Life Science, or Earth and Space Science) ($0.01/call) - get_3d_components: Extract the three-dimensional learning components (SEP: Science and Engineering Practices, DCI: Disciplinary Core Ideas, CCC: Crosscutting Concepts) for a specific standard (e.g., MS-PS1-1, MS-LS2-3, MS-ESS3-1) ($0.01/call) - search_standards: Perform full-text search across all NGSS standard content including performance expectations, topics, and keywords (e.g., "energy transfer", "ecosystems", "chemical reactions", "climate change") ($0.01/call) - search_by_practice: Find all NGSS standards using a specific Science and Engineering Practice (SEP). Examples: "Developing and Using Models", "Analyzing and Interpreting Data", "Planning and Carrying Out Investigations" ($0.01/call) - search_by_crosscutting_concept: Find all NGSS standards using a specific Crosscutting Concept (CCC). Examples: "Patterns", "Cause and Effect", "Systems and System Models", "Energy and Matter" ($0.01/call) - search_by_disciplinary_core_idea: Find all NGSS standards using a specific Disciplinary Core Idea (DCI). Examples: "Definitions of Energy", "Interdependent Relationships in Ecosystems", "Weather and Climate" ($0.01/call) - get_unit_suggestions: Recommend compatible NGSS standards for curriculum unit planning based on 3D framework overlap (domain, SEP, DCI, CCC). Example: Given anchor "MS-PS3-1" (energy), suggest 2-7 compatible standards that share similar practices, concepts, or disciplinary ideas for a cohesive unit ($0.01/call) ## Get Started 1. Get an API key at https://ngss-standards.on.xpay.sh/account/keys 2. Add the MCP server URL to your client config (Claude, Cursor, Windsurf) 3. Pay per tool call from your XPay wallet ## About Powered by XPay — pay-per-use API access for AI agents. https://xpay.sh