Joel Smith

Head of Platform @mastra. New Jersey apologist.

[Alex Booker @bookercodes]

Stoked to announce Mastra Observability - hosted observability for Mastra agents 🔥

Export high-volume traces and logs

Monitor cost and performance, search and filter every run

Then use Studio to turn production behavior into evals, datasets, and experiments

[Joel Smith @jsumnersmith]

@peduarte Hope you're hitting https://t.co/Ka1hnm1wSF when you're in NYC.

[Sam Bhagwat @calcsam]

We’re excited to announce today that @mastra has raised a $22M Series A led by Spark Capital.

This brings our total capital raised to $35M:

[Joel Smith @jsumnersmith]

I join Mastra just over a month ago to help bring this new platform to life, and I'm excited that we're opening it up to everyone today.

Open by default, Mastra platform is the easiest and best way to get your Agents into production.

[Sam Bhagwat @calcsam]

Today, we’re launching the Mastra platform with tools to run your agents effectively at scale:

• Mastra Studio: evals, logs, traces, datasets, metrics
• Mastra Server: deploy agents + workflows
• Memory Gateway: SoTA agent memory

[Joel Smith @jsumnersmith]

Ok. @superset_sh is getting really good.

[Alex Booker @bookercodes]

Introducing metrics and logs in @Mastra 📈

[Alex Booker @bookercodes]

https://t.co/73Rr7SSvSp

[Joel Smith @jsumnersmith]

@VicVijayakumar @kentcdodds This is perfectly acceptable then. I’ve even gone as far as the 6AM mow with the battery mower.

[Yujohn Nattrass @YujohnNatt]

Excited to share experiments in @mastra. Create test cases, score the results, and compare runs side by side to see if the changes actually helped. Swap a model, tweak a prompt, run again, and compare.

Do it all in Studio or via the API. 1/5

[Sam Bhagwat @calcsam]

excited to announce ts ai part 2: demo day

showcasing how companies like @Sanity_io @WorkOS @StainlessAPI have shipped typescript agents to prod

come join us on April 9: https://t.co/Y9EjqVtjXv

[Jasper Vanu | Founder's GTM 🦊 @outboundman]

@calcsam 400k to 500k in 24 days. Mastra is growing faster than almost anything I've seen in the AI tooling space right now

[Sam Bhagwat @calcsam]

500k

[Mastra @mastra]

https://t.co/wCCwUhoWa3

[Tyler Barnes @tylbar]

I was a big time Claude Code user for a long time, but compaction was always this really broken/frustrating thing where after compaction it was better to just start a new session.

We built Mastra Code to not have that problem. It uses observational memory, so instead of compaction, observations compress the history 6-40x in the background, context rot is dropped, and the history of what happened and what mattered is retained

[Satya Patel @saddle_paddle]

We're betting on them at @superset_sh btw, check them out ASAP if you haven't yet

[Joel Smith @jsumnersmith]

I've been running this since I started on the @mastra team yesterday and already loving it. Shipped my first two PRs with Mastra Code to improve some of the UX inside of the agent itself.

[Tyler Barnes @tylbar]

🚨 Announcing a new coding agent that rivals Claude Code but with no compaction needed 🚨

The feeling of using it: run your coding sessions forever, don't worry at all, and get shit done!

We're calling it Mastra Code, it's powered by @mastra's new observational memory, and we've been using it internally @mastra to do all our work

1/4 🧵

[Joel Smith @jsumnersmith]

Updated bio. Jumping onboard with @mastra to help build out their cloud platform. This site has been short on AI content, and I'll do my part to help.

[Joel Smith @jsumnersmith]

@EricBalchunas This is a most correct take. No pretzel greater than the poorly named Center City soft pretzel.

Years ago, I used to work around the corner at a design studio and every week we had Pretzel Thursday™ featuring a full bag of pretzels fresh off the conveyer belt.

[Joel Smith @jsumnersmith]

I’ve been working on and off with Sam for 5 years, and this tool captures his superpower as a designer and engineer: great UIs take iteration, exploration, and ultimately thought.

[Sam Bernhardt @samuelbernhardt]

UI iteration in code is slow.

Exploring ideas shouldn’t require multiple branches and preview links.

Meet UIFork, a dev tool that lets you fork UI variations and flip between ideas instantly inside your running app.

Many variations. One branch. Deployable to a single URL.

[Token Terminal 📊 @tokenterminal]

🆕🤖 Token Terminal MCP is here!

Today, we're launching an MCP server that lets you query Token Terminal data directly in @claudeai or @ChatGPTapp.

Ask questions in natural language and get data, charts, and baseline analysis in seconds.

Get started now 👇