---
id: microsoft-kiota-serialization-form
version: "1.11.9"
license: unclear
license_treatment: permissive
maintenance: active
---

# microsoft-kiota-serialization-form — Core abstractions for kiota generated libraries in Python

License: permissive · Maintenance: active · Downloads: 9.4M/mo

## What it is and what it does

This package provides form-encoded serialization support for Kiota, Microsoft's code generator for API clients. It implements the application/x-www-form-urlencoded serialization format, which is commonly used for HTML form submissions and API requests. The library is a specialized component designed to be pulled in automatically by Kiota-generated client libraries when they need to handle form-encoded request or response bodies.

The package depends on microsoft-kiota-abstractions and is actively maintained with support for Python 3.10 through 3.14. It carries no known security vulnerabilities and uses a permissive MIT license. The library is part of Microsoft's broader Kiota ecosystem for generating strongly-typed API clients from OpenAPI specifications.

Use it for:

- Handling form-encoded payloads in Kiota-generated clients calling APIs that accept application/x-www-form-urlencoded data
- Serializing form data for OAuth token requests or similar authentication flows in generated API clients
- Supporting legacy or standard HTTP form submission patterns in modern API client code

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Handles serialization of data into application/x-www-form-urlencoded format for use with Kiota-generated API client libraries.

Yes, if you are using a Kiota-generated API client that needs to work with form-encoded endpoints. Install it as a dependency of your generated client code. It is actively maintained, has no vulnerabilities, and carries minimal install friction. If you are not using Kiota-generated clients, you likely do not need this package directly.

## Install

pip install microsoft-kiota-serialization-form
uv add microsoft-kiota-serialization-form
poetry add microsoft-kiota-serialization-form

## Installing microsoft-kiota-serialization-form

Before you install: Low install friction with a single runtime dependency. Active maintenance with a recent release and no known vulnerabilities.

License in practice: Licensed under MIT (permissive), allowing use in proprietary and open-source projects with minimal restrictions.

Quickstart:

pip install microsoft-kiota-serialization-form

from microsoft_kiota_serialization_form import FormSerializationWriterFactory

factory = FormSerializationWriterFactory()

Requires Python 3.10 or later; intended for use within Kiota-generated API client projects.

Verify before relying:

- Whether this package can be used standalone or only as part of a Kiota-generated project
- Specific API surface and method signatures beyond factory instantiation
- Performance characteristics with large form payloads

## Package facts

- License: not declared (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 9.4M/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

form encoded serialization python, kiota form serialization, application/x-www-form-urlencoded, kiota generated client, form data serialization, kiota api client, url form encoding, kiota, api-client, serialization

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