HTML Artifacts, Service Previews, MCP Client Credentials, and AWS Accounts

#HTML artifacts now open as real previews inside Tembo

Agents can now generate HTML artifacts that render directly inside Tembo instead of showing up as plain files. That makes it much easier to review generated pages, reports, and small apps without leaving the session.

#Share local apps with one service preview command

The CLI now includes a service preview command that exposes a local HTTP port and gives you a shareable public URL. It is a much smoother way to demo a local build, QA a flow, or send someone a working preview without extra setup.

#Custom MCP servers now support client credentials auth

Custom remote MCP connections can now use OAuth client credentials in addition to standard OAuth flows. This makes it easier to connect MCP servers that are designed for server-to- server access instead of interactive user sign-in.

#Manage AWS connected accounts directly in the app

AWS connected accounts are now easier to manage from Tembo. You can edit account names and role ARNs in place, and disconnect accounts from the same management surface when you need to clean things up.

#More GPT model options are available

Tembo now supports GPT-5.6 Sol, GPT-5.6 Terra, and GPT-5.5 Pro, giving teams more options when they want to tune for speed, cost, or capability.

Also various bug fixes and improvements as always :)