rstructor
v0.4.0 GrowingGet structured, validated data out of LLMs as native Rust structs and enums. Derive a type and rstructor generates the JSON Schema, prompts the model, parses the reply, and retries on validation errors — across OpenAI, Anthropic Claude, Google Gemini, and xAI Grok. The Rust answer to Python's Pydantic + Instructor.
Quick Verdict
- ✓Actively maintained (updated 33d ago)
- !Pre-1.0: API may have breaking changes
- ✓Permissive license (MIT)
Security
Deep Insights
580 downloads in the last 30 days (19/day), up 27% from the previous period.
Despite being 1+ years old, rstructor hasn't reached 1.0 yet. Expect potential API changes between versions.
Notable dependents include cmt, reasonkit-core, summera. When high-quality crates choose rstructor, it's a strong quality signal.
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Top Dependents
Most downloaded crates that depend on rstructor
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Release Timeline
Feature Flags
default =["openai", "anthropic", "grok", "gemini", "derive", "logging"]