# QuantumDB - 量子计算知识引擎 - 处理器、算法、纠错、应用 > Quantum computing knowledge base - processors, algorithms, error correction, applications ## API Endpoints (JSON) - `GET /api/data.json` - Complete structured data - `GET /api/entities.json` - All entities flat list - `GET /api/openapi.json` - OpenAPI 3.1 specification - `GET /api/algorithms.json` - algorithms data - `GET /api/main.json` - main data - `GET /api/processors.json` - processors data ## Stats - Total entities: 15 - algorithms: 7 - processors: 8 ## Cross-references - `GET /api/cross-refs.json` - Links to related knowledge bases ## Agent Discovery - `GET /.well-known/agent.json` - Machine-readable API description - `GET /.well-known/ai-plugin.json` - ChatGPT plugin manifest - `GET /llms.txt` - This file - `GET /llms-full.txt` - Complete data in text format