Hey t= here=F0=9F=91=8B,

2025 = is quickly coming to an end, and we=E2=80=99ve got some exciting updates fo= r you! We shipped AI tooling features (more on that below), we're hosting o= ur first debate-style webinar, and we found ourselves genuinely excited abo= ut a data format called TOON. (We know, we know.)

Shipped

We made it easier for AI assistants to help you build with Pos= tmark

Getti= ng an AI assistant to help with your email integration shouldn't feel like = explaining SMTP to your cat. We shipped three updates to fix that:

• An llms.txt file tha= t gives AI tools accurate, structured information about our API and feature= s (paste https://postmarkapp.com/llms.txt into ChatGPT= or Claude when you need help).
• Pre-built AI pro= mpts in our docs for common integration tasks like Node.js setup or pas= sword reset flows.
• A Model Context Protocol (MCP) server that let= s AI assistants actually send emails and check stats through your Postmark = account.

The r= esult? Less time searching docs, fewer integration mistakes, and AI assista= nts that can actually help you ship faster. The MCP server is early access = from Postmark Labs=E2=80=94we're actively looking for feedback on what to a= dd next. Read more about our AI documentation tooling =E2=86= =92

Customer spotlight

Parvez Akther + ThriveDesk

How would you describe yourself in one se= ntence?
Father, husband and entrepreneur who translates tech into plain talk before= the coffee kicks in.

Can you tell us a little bit about your e= xperience and the work you do?
Building software since 2010, now building companies for future.

How has Postmark helped you?
At ThriveDesk, our entire outbound emails are handled using Postmark. We do= n't have to worry about delivery, compliance and infra. It just works the w= ay we want.

How are you using Postmark on your projec= ts today?
Postmark is cornerstone of ThriveDesk, the next-gen helpdesk software we're= building. We 100% rely on Postmark for our email delivery.

What advice would you give other folks in= your role about implementing and managing their email?
Don't think much, use Postmark =F0=9F=99=82

Built something cool with Postmark lately?
We'd love to feature you in our Customer Spotlight!

Webinar

Should developers use AI coding tools? Two perspectives, one honest conv= ersation

The d= eveloper community is split on AI coding tools. Some see essential producti= vity boosters. Others see environmental disasters that plagiarize open-sour= ce work and erode fundamentals. Both sides have compelling points=E2=80=94a= nd we're not picking a winner.

Join = us December 3 at 2pm ET for a live, moderated debate between two experience= d developers on opposite sides of this issue. No evangelizing, no dismissin= g concerns=E2=80=94just a structured exploration of the real trade-offs you= face when deciding whether to use tools like GitHub Copilot, Cursor, or Cl= aude Code.

Our latest, greatest fin= ds from around the web

Here = are three pieces that caught our attention this month - each tackling a dif= ferent aspect of how developers and infrastructure are evolving:

TOON: Bye bye JSON for LLMs - Token-Or= iented Object Notation cuts token usage by 30-60% compared to JSON when fee= ding structured data to LLMs. It's not meant to replace JSON everywhere, bu= t for uniform tabular data passed to AI models, it's remarkably efficient.<= /p>

The = AI bubble is bigger than you think - This analysis examines th= e sketchy financial engineering underneath AI's infrastructure boom. Data c= enters financed through private credit, GPUs purchased with loans backed by= other GPUs, and depreciation schedules that might not match reality.

Google Antigravity - Google's experimental agent-fi= rst IDE powered by Gemini 3. It's part of the broader shift toward AI-integ= rated development environments, alongside tools like Cursor 2.0. Worth expl= oring if you're curious about where coding environments are headed.

Meme of the month

Newsletter complete. See you next month!

Keep building amazing things,

The Postmark Team

P.S. Want to share your project? If you've built something with Postm= ark that solves a real problem for real people, we want to feature you. Tell us about= it or just reply to this email.