Managing Output Parsers
for Structured Data
Transform raw model outputs into clean, typed, validated data structures with composable parser primitives — built for production pipelines.
Composable Parsers
Chain parsers together to handle complex nested schemas with automatic fallback and retry logic.
Type Validation
Every field is validated at parse time using Pydantic-compatible schemas with rich error messages.
Streaming Support
Parse incremental token streams in real-time without waiting for the full model response to complete.
Auto-Retry
Built-in retry logic re-prompts the model when output doesn’t match the expected schema or format.
Format Agnostic
Parse JSON, XML, YAML, Markdown tables, and custom delimited formats with the same unified API.
Zero Config
Works out of the box with sensible defaults. Drop in your schema and start extracting in minutes.
# Define your target schema from output_parsers import StructuredParser, Field from pydantic import BaseModel class ProductInfo(BaseModel): name: str price: float tags: list[str] in_stock: bool # Attach parser to your chain parser = StructuredParser(schema=ProductInfo, retries=3) result = parser.parse(model_output) # Fully typed, validated output ✓ print(result.name, result.price)

