Jeremiah Lowin
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jlowin.dev
Jeremiah Lowin
@jlowin.dev
CEO @prefect.io. Building FastMCP. Mostly harmless.
My new content strategy:

1. Be trending
2. Don’t be not trending
September 13, 2025 at 10:54 PM
Ok we get it... you really, really, really like easy auth integrations.
September 12, 2025 at 2:08 AM
this time is different
September 9, 2025 at 1:19 AM
"This issue appears to be a duplicate... of itself."

Tell me more about this "AGI"

github.com/jlowin/fastm...
September 6, 2025 at 7:43 PM
"You're absolutely right!"
August 25, 2025 at 1:07 AM
Ladies and gentlemen, I give you: Opus 4.1
August 23, 2025 at 12:13 AM
Interesting things shipping in FastMCP 2.12...
August 20, 2025 at 5:33 PM
You call that a commit message? THIS is a commit message.
August 20, 2025 at 11:41 AM
reviewing PRs in 2025
August 12, 2025 at 1:07 PM
August 10, 2025 at 4:28 PM
The adult version of watching the oxygen bar run out in Sonic
August 9, 2025 at 5:19 PM
It's hard to overstate what Prefect 3 did for adoption. Usage has now increased nearly 10x since GA less than a year ago... and the rate is accelerating.
August 1, 2025 at 12:53 PM
I was honored to open PayPal's first-ever AI Summit!

Watching a company at this scale commit to radical transformation is astounding and inspiring, and I got to see this not only from the keynote stage but in hours of conversations with the AI, LLM, and MCP teams after.
July 18, 2025 at 11:40 PM
I almost didn’t make cyclopts a fastmcp dependency because it didn’t have a lot of downloads.

Problem solved, I guess?
July 16, 2025 at 2:28 PM
It's all fun and games until an AI vibe-codes a 42,000 line PR and another AI vibe-reviews it as "impressive and substantial."

This is the way the world ends, not with a bang but a "LGTM!"

github.com/google-gemin...
July 8, 2025 at 1:54 PM
Sure, I could use AI video to sell something... or I could just sit here and watch the virtual starling murmurations fly by
July 7, 2025 at 6:38 PM
Git worktrees are the recommended way to run Claude Code in parallel, but managing them is kind of tedious... so I built claude-wt!

A simple utility to spin up and manage Claude in isolated worktrees.

No install needed: uvx claude-wt new
July 7, 2025 at 4:24 PM
MCP middleware is coming in FastMCP 2.9.0.

SUPER powerful. Very excited to see what people do with it.
June 19, 2025 at 7:35 PM
Copychat now includes an MCP server, so your AI assistants can quickly copy/paste source code and text.

I find it especially useful for asking Claude to write stuff directly to the clipboard.

Just add `uvx copychat mcp` as a new MCP server in your favorite client!
June 18, 2025 at 8:40 PM
We keep saying that Prefect 3 catalyzed extreme adoption, but I'm not sure folks understand just *how much* growth we're talking about:
June 13, 2025 at 7:24 PM
FastMCP has gone to plaid
June 12, 2025 at 1:31 AM
June 3, 2025 at 10:38 PM
Sunday funday

FastMCP 2.6 is going to be a big one.
June 2, 2025 at 1:48 AM
Only one is correct.
May 31, 2025 at 3:11 PM
May 29, 2025 at 6:51 PM