Engineering

updates from our engineering team

[Engineering @Engineering]

@yagiznizipli 🚀

[Engineering @Engineering]

Three implementations became one, and a profile's first post now loads in 2.7 seconds on a slow connection. Read how we rebuilt X web for speed and efficiency:

[Yagiz Nizipli @yagiznizipli]

The web rewrite is working.

On a slow connection, the old X web took more than 22 seconds to show the first post on a profile. The new X web does it in 2.7 seconds. Here's how we did it, and how we're rolling it out one country at a time.

https://t.co/LBUqTnINTa

[Santiago @santiagomed]

Ever wondered what it takes to ship an encrypted chat API?

I wrote up how to build on the 𝕏 Chat API and a sneak peak on how we built it https://t.co/kX7HIn4I86

[Kyle @kyletruong]

First week at @X done and first big ship: introducing 23 new X Chat endpoints!

[Engineering @Engineering]

Livestream API ✅

Streaming on X ✅

[Mike Rosinsky @mike_rosinsky]

One of my favorite verticals that I've worked on, and there's so much more to come.

A world-class streaming platform needs a world-class API to match. Now it's here.

Tell your favorite streaming software company to get integrated today.

[Mike Rosinsky @mike_rosinsky]

One of my favorite verticals that I've worked on, and there's so much more to come.

A world-class streaming platform needs a world-class API to match. Now it's here.

Tell your favorite streaming software company to get integrated today.

[XChat @chat]

X Numbers are here.

Share yours with anyone you want to contact you, even if you don't follow them. It's an optional way for people to message or call you, without you needing to accept requests or follow them back.

[Santiago @santiagomed]

The @XDevelopers and @bot team worked tirelessly this week to make the X in Grok Bot experience as seamless as possible.

On top of the included credits to Grok Bot users, this week we started giving $20 of monthly X API credits to all Premium+ users.

[Santiago @santiagomed]

We're building the Everything API so agents can work across X and beyond.

To get started with the X Ads MCP, assign your developer app to an Ads project at https://t.co/gjk1mkIeYj

[X Open Source @XOpenSource]

https://t.co/soxNY8YdP7

[Engineering @Engineering]

Try X Chat API 👇

https://t.co/e09tjNVXbd

[Santiago @santiagomed]

𝕏 Chat is a full rewrite of DMs on 𝕏 and will replace legacy DMs over time

That only works if builders can come along. Businesses ran support & automation on the DM API for years, but none of it works with encrypted messages

𝕏 Chat needed an API of its own. Today it has one

[Engineering @Engineering]

Update your app today to see the difference.

Many more upgrades to come including hosting Spaces and performance upgrades for older devices. Let us know what you think and reply with any bugs that you catch.

[Engineering @Engineering]

We've completely rebuilt the Android X app from the ground up.

It's faster, smoother, and more reliable than the old version in every way. We modernized the foundation so everything just feels better: scrolling, loading, notifications, you name it.

[Nate Esparza @Nate_Esparza]

The Ads @engineering team at 𝕏 continues to deliver outstanding new products for advertisers! 🔥

In the last month we have launched:

- X Ads App on Shopify
- Simplified Pixel + Direct CAPI Integration
- Improved Dynamic UTMs
- New Conversion Tracking Dashboard
- Boost & Mentions Boost 🚀

[Belce Doğru Pattabi @belce_dogru]

Try out our new model for free and let us know what can be improved. Install at https://t.co/zsA4Thr1yz

[Andrew Milich @milichab]

Try Grok 4.5 in the API, Grok Build, and Cursor

[Creators @XCreators]

Introducing Live Studio (beta) — a completely redesigned livestreaming control room built into 𝕏.com.

https://t.co/H8E7mVXmNP

[Andrew Milich @milichab]

Build a voice agent connected to your scheduling app, knowledge base, and any custom MCPs or APIs

Phone number included to get started!

[Vardhan Agnihotri @agno_three]

was a lot of fun working on this! agents will now be able to inform their decisions with the highest-quality realtime data known to man.

lots more coming soon.

[XChat @chat]

XChat for Android is live. Chat privately with anyone on X, straight from your home screen.

Download now: https://t.co/ss0olSVFkt