OntologyToAPI

This python package is an ontology-driven API generator designed for backend development by transforming structured domain knowledge, different data sources and implemented business models into fully functional APIs. The tool accepts ontologies specified in Turtle (.ttl), Resource Description Framework (.rdf) and Web Ontology Language (.owl).

• A full documentation on how to extend your own ontologies using the OntologyToAPI framework is still in development, but you can check a small sample and docs at https://github.com/JCGCosta/OntologyToAPI/wiki

Expected Results from a simple ontology specification

Supported communication technologies are (Currently):

Stateful Connections

• "SOCKET" - For Socket connections using asyncio streams

Stateless Connections

• "API" - For REST APIs using requests driver
• "MYSQL" - For MySQL Databases using aiomysql driver
• "SQLITE" - For SQLite Databases using aiosqlite driver
• "POSTGRESQL" - For PostgreSQL Databases using asyncpg driver
• "MONGODB" - For MongoDB Databases using motor driver
• "UNQLITE" - For UnQLite Databases using unqlite+asyncio driver

Next Steps:

Next steps involve extending the support for new communication technologies.

• "FILE" - For File operations using aiofiles driver
• "WEBSOCKET" - For WebSocket connections using websockets driver
• "MQTT" - For MQTT connections using asyncio-mqtt driver
• "REDIS" - For Redis Databases using aioredis driver
• "CASSANDRA" - For Cassandra Databases using cassandra-driver with asyncio support

Change Log

VERSION="0.0.25" LAST_UPDATE="13/07/2026"

• Changed the default name of an output schema to the concatenation of the BM name + _OutputSchema, to simplify debugging in docs.
• Added support to multi file uploads by adding "List[UploadFile]" or "list[UploadFile]" in the parameter type in the BM ontology, the solution required a workaround because of an inference problems with the swagger ui and the OAS 3.0 (Ref. https://github.com/fastapi/fastapi/pull/15069 and https://github.com/fastapi/fastapi/discussions/14975).