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Package to transform python functions into state of the art REST API

Project description


Turns your Python functions into microservices REST API in an instant.

Getting Started

Instantly turn your Python functions into production-ready microservices. Deploy and access your services via REST API. model2api builds on open standards - OpenAPI, JSON Schema, and Python type hints - and is powered by FastAPI, and Pydantic. It cuts out all the pain for productizing and sharing your Python code - or anything you can wrap into a single Python function.

This package is based on opyrator and was fork as the package was relying on older version of FastAPI and Starlette.


  • Turn functions into production-ready services within seconds.
  • Auto-generated HTTP API based on FastAPI.
  • Save and share as self-contained executable file or Docker image.
  • Instantly deploy and scale for production usage.
  • Track and monitor API's call with correlation_id

Getting Started


Requirements: Python 3.7+.

pip install model2api


  1. A simple compatible function could look like this:

    from pydantic import BaseModel
    class Input(BaseModel):
        message: str
    class Output(BaseModel):
        message: str
    def hello_world(input: Input) -> Output:
        """Returns the `message` of the input data."""
        return Output(message=input.message)

    A compatible function is required to have an input parameter and return value based on Pydantic models or an UploadFile. The input and output models are specified via type hints.

  2. Copy this code to a file, e.g.

  3. Run the HTTP API server from command-line:

    model2api model:hello_world

    In the output, there's a line that shows where your web service is being served, on your local machine.

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