valentina-python-client 2.2.0

Async Python client library for the Valentina Noir API

Valentina Python Client

Async and sync Python client library for accessing the Valentina Noir API.

Features

• Async and sync clients - Both VClient (async) and SyncVClient (sync) built on httpx
• Type-safe - Full type hints with Pydantic models for request/response validation
• Convenient factory pattern - Create a client once, access services from anywhere
• Automatic pagination - Stream through large datasets with iter_all() or fetch everything with list_all()
• Robust error handling - Specific exception types for different error conditions
• Idempotency support - Optional automatic idempotency keys for safe retries
• Rate limit handling - Built-in support for automatic rate limit retries

This client is a supported and up-to-date reference implementation for the Valentina Noir API.

Documentation

The full documentation is available at https://natelandau.github.io/valentina-python-client/.

Claude Code Skill

This repo includes a Claude Code skill that gives Claude deep knowledge of vclient's services, models, constants, and testing utilities. Install it so Claude can help you build applications against the Valentina API.

Install

claude install-skill /path/to/valentina-python-client/vclient-guide-skill

Once installed, Claude will automatically activate the skill when you're working with vclient imports, Valentina API endpoints, or FakeVClient testing.

Development Tools

Validate Constants

Verify that the Literal type constants in this package are in sync with the live API's /options endpoint. This catches drift between client and server before a release.

# Via duty task
uv run duty validate_constants

# Via script directly
uv run python scripts/validate_constants.py --api-key <key> --company-id <id>

The script reads configuration from (highest precedence first):

1. CLI arguments (--api-url, --api-key, --company-id)
2. System environment variables (VALENTINA_CLIENT_BASE_URL, VALENTINA_CLIENT_API_KEY, VALENTINA_CLIENT_DEFAULT_COMPANY_ID)
3. A .env.secret file in the project root

Exit codes: 0 = all constants match, 1 = mismatches found, 2 = missing configuration.