Going to do my best to share helpful updates about how to get the most from the Claude Platform: APIs, SDKs, the ant CLI and more.
If you have any feedback about existing API features you’d love to see, I’m all ears!
Pumped to be back in a position where there’s so much I’m excited to use and hype.
to me it was always bonkers insane that in order to connect service A with service B i need to ... paste an api key ???
how come as a fucking industry we didnt invent a better way to connect deployments with services
You can now expose long running agents via MCP and use it in Claude. You want to run a research agent or kick off a CI job and listen to the result. You also can now ensure with elicitations that a human is accepting an action or filling in data, or delegate to a URL for payments
We're donating Agent Skills to the Agentic AI Foundation (@AgenticAIFdn), the same foundation we donated MCP to.
Since December 2025, 70+ agent platforms have integrated the standard, including ChatGPT, Cursor, GitHub Copilot, and VS Code.
Here's what that means for you:
New major versions of all the SDKs are out!
A handful of breaking changes, but hopefully a no-op for most.
One meaningful change: Java MessageParam is split out (was getting crowded in there 😅)
API version 2026-10-21 is now available.
The Claude API has evolved a lot, but this is our first official version release since 2023. We plan to release versions more often so you can handle breaking changes before a new model requires them.
2023-06-01 is not deprecated.
Quick reminder that the free limit reset from last month expires tomorrow at 9am PT! 🙏 If you haven't used yours yet, it's still waiting for you in Settings > Usage (or https://t.co/qXOsTIAjRH)
We’re opening a research preview of Claude Duet, a new app where Claude works as a proactive agent.
It comes to you with what needs your attention, completes tasks you ask of it, keeps working when you step away, and checks with you before it acts on your behalf.
Trillions are pouring into the race to build the first general superintelligence, but leveraging your own specialized know-it-all is now possible as of today.
I built the knowledge systems at @stripe and @uber. Then I helped Anthropic, Metronome, and Graphite build a killer developer experience. Everyone wants Stripe-level quality, but that bar is too low.
Falconer gives you and your customers complete, specialized intelligence: an internal knowledge base and external documentation in one beautiful package. Falconer is the ultimate trust engine to manage your context: self-driving, observable, and agent-friendly.
I co-founded @falconer_ai with @mbenedetto212 and assembled a team of know-it-all builders. We're backed by fellow know-it-alls @thegp, @BoxGroup, @svangel, @karimatiyeh, @benln, @zachlloydtweets, @CeciStalls, @MerrillLutsky, @scottmac, @malthe, and @adamjstevenson, with angels from Anthropic, Stripe, Meta, Cursor, Replit, and more.
Frontier intelligence companies like @FireworksAI_HQ and @⬛⬛⬛⬛⬛⬛; fintech companies like @payabli and @vori; and healthtech companies like @thatch_ai use @falconer_ai because they all share the same vision as us: the knowledge you earn should belong to you.
Now you can know everything, so you can build anything.
Do you know what your agents did last night?
New cookbook: point Claude at your agent transcripts and it flags the sessions worth a second look. Works for CMA, Agent SDK and your own agent transcripts
https://t.co/CTAiVkIiVX