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#pydantic

Pydantic posts — validation, settings, and typed data models in Python.

FastAPI in 2026: Building Production APIs with Python 3.14

A production blueprint for FastAPI on Python 3.14 scalable project structure, Pydantic request/response contracts, dependency injection, honest async, queues, testing, and deployment worker model.

Cover image for MCP Tool Design Agents Get Right: Schemas, Errors, and Structured Output

1 month ago 181

AI Python

MCP Tool Design Agents Get Right: Schemas, Errors, and Structured Output

The craft that decides whether agents succeed with your server: choosable descriptions, constrained schemas, the isError contract, structured output, and honest tool annotations.

1 month ago 75

Python

Type-Safe Data Modeling with Pydantic v2 and Python Type Hints

Use Pydantic v2 to validate data at the boundary: models, field constraints, custom validators, and clean serialization, the backbone of FastAPI and reliable LLM output.