# Scapy

> Script packet dissection, construction, request/reply matching and capture-file analysis in Python. Custom packet fields and layer bindings let analysts encode understood wire formats and investigate protocol behavior.

- Type: Tool
- Targets: Protocol
- Category: Protocol analysis tools
- Relationship: Foundation tool
- Sources reviewed: 2026-10-17
- Added to the catalog: 2026-10-17
- Original resource: <https://github.com/secdev/scapy>
- Primary source: <https://github.com/secdev/scapy/blob/e2e35c07bce2f40e7513e1b29a6d300d5329dbc3/README.md>
- Catalog page: <https://awesomerea.org/resources/scapy/>
- Record JSON: <https://awesomerea.org/resources/scapy/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/scapy/index.md)

## Requirements & limits

- Reviewed stable release: 2.8.0, published 2026-10-02. Its package metadata requires Python >=3.7,<4; upstream says the 2.8 major version is the last to support Python 3.7 and 3.8. Use release-matched documentation rather than older cached version pages.
- Linux, macOS and BSD have documented platform support; Windows requires Npcap. Live capture or packet transmission needs suitable interfaces and privileges. Offline capture analysis is a separate workflow, and libpcap requirements vary by platform and feature.
- Optional features have additional dependencies, such as cryptography for cryptographic functionality and plotting tools for visual reports. Unknown formats require suitable custom Packet/Field definitions and bindings; dissection does not automatically infer complete protocol semantics or peer implementations.
- GPL-2.0-only in the reviewed package metadata, with dependency and capture-driver licenses separate. The 2.8.0 release notes describe security fixes.

## Primary sources

1. <https://github.com/secdev/scapy/blob/e2e35c07bce2f40e7513e1b29a6d300d5329dbc3/README.md>
2. <https://github.com/secdev/scapy/blob/e2e35c07bce2f40e7513e1b29a6d300d5329dbc3/pyproject.toml>
3. <https://github.com/secdev/scapy/blob/e2e35c07bce2f40e7513e1b29a6d300d5329dbc3/LICENSE>
4. <https://github.com/secdev/scapy/blob/e2e35c07bce2f40e7513e1b29a6d300d5329dbc3/doc/scapy/installation.rst>
5. <https://github.com/secdev/scapy/blob/e2e35c07bce2f40e7513e1b29a6d300d5329dbc3/doc/scapy/build_dissect.rst>
6. <https://scapy.readthedocs.io/en/stable/introduction.html>
7. <https://github.com/secdev/scapy/releases/tag/v2.8.0>
8. <https://pypi.org/project/scapy/2.8.0/>

## More in Protocols

- [Universal Radio Hacker (URH)](https://awesomerea.org/resources/universal-radio-hacker/index.md) · Tool
- [SavvyCAN](https://awesomerea.org/resources/savvycan/index.md) · Tool
- [AALpy](https://awesomerea.org/resources/aalpy/index.md) · Tool
- [rtl_433](https://awesomerea.org/resources/rtl-433/index.md) · Tool
- [Blackbox Protobuf](https://awesomerea.org/resources/blackbox-protobuf/index.md) · Tool
- [furiousMAC Continuity](https://awesomerea.org/resources/furiousmac-continuity/index.md) · Tool

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.