---
id: types-boto3-stepfunctions
version: "1.43.7"
license: MIT
license_treatment: permissive
maintenance: active
---

# types-boto3-stepfunctions — Type annotations for boto3 SFN 1.43.7 service generated with mypy-boto3-builder 8.12.0

License: permissive · Maintenance: active · Downloads: 133.5K/mo

## What it is and what it does

This package provides type stub annotations for the boto3 Step Functions service, compatible with boto3 1.43.7. It was generated using mypy-boto3-builder 8.12.0 and works with mypy, pyright, VSCode, PyCharm, Emacs, Sublime Text, and other tools that support Python type hints. The stubs enable static type checking and IDE code completion without requiring explicit type annotations in your boto3 code—you write boto3 calls normally and the type checker understands the API surface automatically.

The package is a stub-only distribution (no runtime code), so it adds minimal overhead. It includes annotations for the SFNClient, paginators, waiters, and type definitions specific to Step Functions operations. Installation is straightforward via pip, and the package is actively maintained with recent releases.

Use it for:

- Enable IDE autocomplete and type checking for boto3 Step Functions calls in VSCode with Pylance or PyCharm.
- Catch Step Functions API misuse at static analysis time using mypy or pyright before runtime.
- Generate paginator type hints for Step Functions list operations like ListStateMachines and ListExecutions.
- Provide explicit SFNClient type annotations for better code documentation and IDE support in large projects.

## Worth the install?

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

Provides type stubs and IDE-aware type annotations for boto3's Step Functions service, enabling static type checking and autocomplete in editors and type checkers.

Yes. If you use boto3 Step Functions in a Python project with a type checker or IDE that supports stubs, this package is worth installing. It has low install friction, no security vulnerabilities, an active maintenance signal, and a permissive MIT license. The only caveat is a known PyCharm performance issue with Literal overloads (documented in the package), which can be mitigated by using types-boto3-lite instead.

## Install

pip install types-boto3-stepfunctions
uv add types-boto3-stepfunctions
poetry add types-boto3-stepfunctions

## Installing types-boto3-stepfunctions

Before you install: Low friction—a pure stub package with only typing-extensions as a runtime dependency. Actively maintained with recent releases; last commit 2026-06-22.

License in practice: MIT license permits unrestricted use, modification, and distribution in both open-source and proprietary projects with minimal restrictions.

Quickstart:

pip install types-boto3-stepfunctions

from boto3.session import Session
from types_boto3_stepfunctions import SFNClient

client: SFNClient = Session().client("stepfunctions")

Requires Python 3.9 or later; boto3 must be installed separately in your project.

Verify before relying:

- Whether PyCharm performance issues mentioned in the docs (issue PY-40997) remain unresolved or have been addressed in recent PyCharm versions.

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 133.5K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

boto3 step functions type hints, stepfunctions type stubs, boto3 type annotations, mypy boto3 stubs, IDE autocomplete boto3, type-stubs, boto3, aws

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