Memfault CLI tool

This package contains the memfault CLI tool.

The purpose of the tool is to make integration with Memfault from other systems, like continuous integration servers, as easy as possible.

Install the tool and run memfault --help for more info!

Changes

[1.9.1] - 2026-07-09

Fix a UnicodeEncodeError when printing the checkmark (✓) on legacy Windows code pages (e.g. cp1252).

[1.9.0] - 2026-07-09

Add support for multipart OTA artifact uploading. This is controlled by the Memfault cloud, and only applies when OTA payloads exceed a large size limit. No change needed when invoking the Memfault CLI.
Include file size when preparing uploads for better cloud-side support.

[1.8.1] - 2026-05-13

Add the printing of relevant web links to the Memfault app when the post-chunk and deploy-release commands are run.

[1.8.0] - 2026-03-06

Add the --org-token option for authenticating with an Organization Auth Token (OAT). This is now the recommended way to pass OATs to the CLI. Previously, the documented approach was to pass the OAT via --password:
```
memfault --password "$ORGANIZATION_AUTH_TOKEN" ...
```
This should now be updated to use --org-token:
```
memfault --org-token "$ORGANIZATION_AUTH_TOKEN" ...
```
Passing an OAT via --password is deprecated and will be removed in a future release.
Update virtualenv dependency to >=20.36.1 to address this security disclosure.

[1.7.2] - 2026-02-05

Fix a bug where upload-yocto-symbols and upload-elf-symbols would fail on Python 3.14 with tarfile.AbsoluteLinkError when extracting tarballs that contain absolute symlinks (e.g. Yocto's /etc/localtime).

[1.7.1] - 2026-01-13

Update urllib3 dependency to >=2.6.3 to address this security disclosure.

[1.7.0] - 2025-12-15

Update urllib3 dependency to >=2.6.2 to address this security disclosure.
Update tqdm dependency to >=4.67.1 to address this security disclosure.
Update requests dependency to >=2.32.4 to address the following disclosures:
Remove support for Python 3.8. The minimum required Python version is now 3.9.

[1.6.0] - 2025-04-23

Add support for uploading ELF files without DWARF debug info.

[1.5.0] - 2024-11-14

Add support for Python 3.13: remove unnecessary version constraints on the chardet + lxml dependencies.

[1.4.0] - 2024-11-12

Populate a User-Agent string in the headers of all requests to Memfault Cloud to identify the CLI version used for diagnostics. Previously the User-Agent was only included for chunk POST requests.

[1.3.0] - 2024-11-07

Remove support for Python 3.6 + 3.7

[1.2.0] - 2024-08-28

Add the upload-software-version-sbom command. Look at the SBOM docs for more info.

[1.1.0] - 2024-07-22

Add a user-agent string to chunk POST requests to identify CLI version used for diagnostics.
Fixups with ruff (RET504)

[1.0.11] - 2024-06-28

Add an option --no-check-uploaded for upload-mcu-symbols to skip an initial check if the symbol file already exists. This option should be used with Org Tokens limited to only uploading symbol file
Bump urllib3 dependency to 1.26.19
Fixups with ruff 0.4.10

[1.0.10] - 2024-06-13

Source pyelftools from https://pypi.org/project/pyelftools/ again, as the required bugfixes have been merged upstream. See notes of 1.0.6 below.

[1.0.9] - 2024-04-04

Add Miniterm help text when launching the memfault console command, to indicate how to exit the console (Ctrl-]).

1.0.8

Add Apache 2 license

1.0.7

Fix bug when deactivating delta releases when multiple deployments match the filters.

1.0.6

Source pyelftools from https://github.com/memfault/pyelftools while we are waiting for 2 bugfixes to get merged upstream (https://github.com/eliben/pyelftools/pull/537 and https://github.com/eliben/pyelftools/pull/538).

1.0.5

Add support for deactivating delta releases.

1.0.4

Add upload-elf-symbols command for uploading ELF files with debug symbols built outside of a Yocto environment
Add upload-elf-coredump for uploading a Linux coredump to Memfault

1.0.3

Fix a bug where upload-aosp-symbols would fail when uploading too many files at once.

1.0.2

Fix a bug where upload-yocto-symbols would fail when some files in the tarballs provided did not have the read permission set.

1.0.1

Fix upload-custom-data-recording to print a more helpful error message when exceeding device rate limits.

1.0.0

Note: this release is marked as 1.0.0 but does not contain any breaking changes! The version number was bumped to reflect the maturity of the tool.

Fix upload-mcu-symbols to skip uploading if the symbol file has already been uploaded, and return a zero exit code in this case

0.18.1

Add the --deactivate option to deploy-release, which disables a release for a cohort

0.18.0

Add new extra-metadata option to upload-ota-payload to attach custom metadata to that OTA release. The metadata will be returned from Memfault Cloud when fetching the latest Android OTA release.
Continue uploading the entire folder of symbols even if any single upload fails due to the symbol file being too large.

0.17.0

Add new console command to read SDK exported chunks via a serial port and automatically upload to Memfault.

0.16.0

Add support for uploading Android debug symbols from alternative build systems.

0.15.3

Warn if a non-slug string is passed to the --project or --org arguments

0.15.2

Don't truncate help output from click when the CI environment variable is set, for consistent output formatting

0.15.1

Fix some compatibility issues for python3.6 + python3.7

0.15.0

💥 Breaking change: update the upload-yocto-symbols subcommand to take two image paths as required arguments; one for the root filesystem image, and another for the debug filesystem image. Versions 0.14.0 and lower used to take a guess at the path of the debug filesystem image from the value passed to the --image param. To avoid confusion and to support all configurations, the Memfault CLI no longer does any guessing and now takes two separate params: --image and --dbg-image

0.14.0

✨ Update the post-chunk subcommand to split uploads into batches of 500 chunks per upload, to avoid timing out when uploading very large chunk logs

0.13.0

💥 Breaking change: Renamed subcommand upload-debug-data-recording to custom-data-recording

0.12.0

✨ Added subcommand upload-debug-data-recording for uploading debug data files

0.11.0

✨ Enable support for Yocto Dunfell based projects (previously supported Kirkstone only)

0.10.0

✨ Upload-yocto-symbols now uploads additional symbol files

0.9.0

✨ Expanded support for .elf uploading with the upload-yocto-symbols subcommand

0.8.0

✨ Initial support for upload-yocto-symbols subcommand

0.7.0

🐛 Updated to correctly only use the GNU build-id .note section

Release files for memfault-cli 1.9.1

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Source distribution (sdist)

Source distribution for memfault-cli 1.9.1
File	Size	Uploaded
memfault_cli-1.9.1.tar.gz	41.7 kB	Jul 10, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for memfault-cli 1.9.1
File	Interpreter	ABI	Platform	Reset
memfault_cli-1.9.1-py3-none-any.whl 42.7 kB Jul 10, 2026	Python 3	none	any	Details

Total release size: 84.4 kB

Release files / memfault_cli-1.9.1.tar.gz

Download URL	memfault_cli-1.9.1.tar.gz
Size	41.7 kB
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SHA-256 checksum How to use checksums	`53fa7d0d7640481be365ac8f36784db2fc3e96c9fb32ba0bfab0d03331ec0cbe`
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Uploaded via	`uv/0.9.27 {"installer":{"name":"uv","version":"0.9.27","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"26.04","id":"resolute","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`

Release files / memfault_cli-1.9.1-py3-none-any.whl

Download URL	memfault_cli-1.9.1-py3-none-any.whl
Size	42.7 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`21b7597d41b59ef298e312fc0b608099c4d63e2cb6541e87f8df31486a06c558`
BLAKE2b-256 checksum How to use checksums	`7734d63bf436cb04e0d1ff29eab910f8a7227be44678d2924877021535f733d4`
Upload date	Jul 10, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.9.27 {"installer":{"name":"uv","version":"0.9.27","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"26.04","id":"resolute","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`