fossteams

teams-api

Go2020–2025

fossteams / teams-api

teams-api

Unofficial Microsoft Teams Library

Libraries & SDKs

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2Distinct people

9Mentions

0Explicit recommenders

167GitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

Unofficial Microsoft Teams Library

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

fossteams/teams-cli · linked in 3 of the same discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year9 dated mentions

Observed mentions: 2020-10-27 19:09:20 UTC to 2025-02-28 12:24:05 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	2	1	1
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	4	1	3
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	0	0	0
2023	2023-01-01 00:00:00 UTC	2024-01-01 00:00:00 UTC	2	0	2
2024	2024-01-01 00:00:00 UTC	2025-01-01 00:00:00 UTC	0	0	0
2025	2025-01-01 00:00:00 UTC	2026-01-01 00:00:00 UTC	1	0	1

What Hacker News says

9 sources

denysvitali·Feb 28, 2025

Yes, this is correct (AFAIK). I think they basically bought Skype to build "Skype Spaces" which is basically Teams. See the auth flow here: https://github.com/fossteams/teams-api/blob/master/notes/log... They have a "Skype Spaces" JWT that's being used for some parts of Teams

In Microsoft is killing Skype

btdmaster·Mar 27, 2023

https://github.com/fossteams/teams-cli uses https://github.com/fossteams/teams-api

In Microsoft rebuilt Teams from the ground up, promises 2x faster performance

denysvitali·Feb 2, 2023

That's why we're building FossTeams [1], an open source client for Microsoft Teams (: The idea is to have a backend [2], powered by a library [3] that does the heavy lifting and a / multiple frontends to be used with that (e.g: CLI[4], Web frontend[5], Flutter app[6]). We're looking for contributors! If you hate Teams and want to improve an Open Source version, PRs are welcome (: [1]: https://github.com/fossteams [2]: https://github.com/fossteams/fossteams-backend [3]: https://github.com/fossteams/teams-api [4]: https://github.com/fossteams/teams-cli [5]: https://github.com/fossteams/fossteams-frontend [6]: https://github.com/fossteams/fossteams_gui

In Microsoft Teams Premium: powered by OpenAI’s GPT-3.5

denysvitali·Apr 9, 2021

Good job! But you can make it more lightweight by using my library: https://github.com/fossteams/teams-api Or the (wip) TUI: https://github.com/fossteams/teams-cli/

In VNC client running on a coffee machine

denysvitali·Apr 8, 2021Submission

Show HN: Microsoft Teams (unofficial) Go library (WIP)

5 points · Open discussion

denysvitali·Mar 16, 2021

A StackOverflow / Discourse alternative: https://github.com/denysvitali/dev-portal-frontend https://github.com/denysvitali/dev-portal Porting Linux to the Surface Pro X (and failing doing that due to my lack of kernel experience): http://github.com/denysvitali/surface-pro-x-linux/ Creating a Microsoft Teams library + client (WIP): https://github.com/fossteams/teams-api Unfortunately my free time is quite limited :(

In Ask HN: What (side-)project are you working on?

denysvitali·Jan 17, 2021

This is indeed frustrating, but there might be a technical explanation behind it: AFAIK message ids on Microsoft Teams are generated by the clients, and one cannot easily jump to a message ID. Their Teams mobile app does something more stupid, but that kinda works: when you reply to a message, the message is copy-pasted as a quote and you are basically sending back the original message to the user. I really don't agree with most of their engineering choices and I feel they're focusing on the wrong things (bringing new features instead of trying to get it to be a good software): but this could totally be a decision dictated by business. Their clients are super heavy on CPU and memory and I can barely use the web version. On a side note, I'm trying to fix part of this mess myself by writing a Microsoft Teams library (and later a / multiple

Read the rest

clients) so that I can finally use without complaining about it: https://github.com/fossteams/teams-api

In Microsoft Teams desktop reply to message feature missing

denysvitali·Oct 28, 2020

Kind of related: I'm working on a FOSS version of Teams, starting from the Go library [0]. Check it out and contribute if you would like to see more open source Teams clients popping out (: [0]: https://github.com/fossteams/teams-api

In Abusing Teams client protocol to bypass Teams security policies

denysvitali·Oct 27, 2020Submission

Show HN: Teams-API, a wip Go library for Microsoft Teams

https://github.com/fossteams/teams-api Rationale: I'm sick of Microsoft Teams but I have to use it. This is my attempt at reverse engineering their API and creating a library that I'll later use in a GTK application / TUI so that I can finally get rid of the Microsoft Teams UI / Web interface. Feel free to contribute, PRs and suggestions are always welcome!

3 points · Open discussion