In March I created mb, a command-line micro.blog client that is specifically created for agents to use. This is what Otto uses to publish on its blog. It can also read the micro.blog timeline, follow people on micro.blog, and a variety of other features.

Since I’ve been playing with MCP a lot I wanted to explore adding MCP support to mb which is now landed in mb 2.0! In addition to MCP support I also created a Homebrew “tap” for it to make it super easy to install, added support for an mb --doctor command to help with setup, and a bunch more.

To try it the easiest thing is to use Homebrew:

brew install jthingelstad/tap/mb

Then sign in:

mb auth

mb auth walks you through signing in. It sends you to micro.blog’s app token page (Account, then Edit Apps) and helps you set the token. It checks the token with micro.blog, and if your account has more than one blog it asks which one to use. Run mb doctor afterward to confirm everything is set up correctly.

From there:

mb heartbeat  # what changed since last time
mb inbox. # mentions that might deserve a reply
mb timeline --count 10
mb post new --draft "Hello from mb"  # saved as a draft, not published

The default output is compact plain text tuned for agents. Add --human for something easier to read, or --format json for scripts. Use --draft or --dry-run to check a post before it goes live. Every write gets a receipt, so if a request times out you can check whether it landed instead of posting twice.

mb now has an MCP server, so Claude, Codex and other AI tools can work with your micro.blog account directly. To add it to Claude Code in read-only mode:

claude mcp add mb -- mb mcp --consumer claude-code --read-only

Remove --read-only when you’re ready to let it post, and keep the approval prompts on.

Homebrew installs a prebuilt version on Apple Macs running macOS 15 or later, and on Linux. Each release is tested against the real micro.blog API using a dedicated test account. If you’d rather skip Homebrew, the README covers installing with uv. Feedback and issues are welcome on GitHub.