# Token Catalog > An independent reference for Material Design 3 tokens and observed changes. Not affiliated with Google. Current snapshot: 20261011T032241-G6EVUOXI. Captured at: 2026-10-11T03:22:41.557640675Z. ## Read the data - [Usage guide](https://tokencatalog.dev/md3/skills/material-tokens/SKILL.md): API endpoints, download scopes and interpretation. - [API description](https://tokencatalog.dev/md3/openapi.json): OpenAPI paths, parameters and response schemas. - [API catalog](https://tokencatalog.dev/md3/.well-known/api-catalog): API description, usage documentation and health endpoint. - [AI catalog](https://tokencatalog.dev/md3/.well-known/ai-catalog.json): API, agent skill and MCP discovery. - [Skills index](https://tokencatalog.dev/md3/.well-known/agent-skills/index.json): Available agent skills and their content digests. - [MCP server card](https://tokencatalog.dev/md3/mcp/server-card): Public MCP transport and supported protocol versions. - [Authentication guide](https://tokencatalog.dev/md3/auth.md): Public access; no credentials or registration needed. - [Subject index](https://tokencatalog.dev/md3/api/v1/subjects): Components and styles with exact page and JSON URLs. - [Snapshots](https://tokencatalog.dev/md3/api/v1/releases): Capture dates and snapshot identifiers. - [Change history](https://tokencatalog.dev/md3/api/v1/changes): All retained observed changes as JSON. - [All tokens](https://tokencatalog.dev/md3/downloads/tokens.json?scope=all): Bulk JSON with every subject and supported context. - [Page index](https://tokencatalog.dev/md3/sitemap.xml): Canonical HTML pages. - [Full API and agent guide](https://tokencatalog.dev/md3/llms-full.txt): Usage instructions, MCP, Markdown and the subject inventory.