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The stack · 35 tools

The tools we use

Everything Lemonbrand runs on, by category, with one line on what we do with each one. No prices, no ratings, nothing we stopped using.

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AI and agents

What actually writes, reads and decides. The rest of the stack exists to feed these.

ClaudeEvery build in this repo, and the agent that runs the back office.Open Claude
ChatGPTThe second opinion. Codex reviews plans before anything load-bearing ships.Open ChatGPT
OpenRouterOne key across every model, so a cheap stage and a frontier stage can differ per job.Open OpenRouter
PerplexityFirst-pass research when the answer needs a source attached.Open Perplexity
Microsoft CopilotAI inside Word, Outlook and Teams, for the teams that already run on Microsoft 365.Open Microsoft Copilot

Making the show

AI in Context, from the board on screen to the replay, the clips and the list.

Outbound

Finding people and sending mail without a human doing the typing.

Infrastructure

Where the code runs and where the data sits.

Operations

Calls, calendars, credentials and the record of what happened.

Money

Invoices out, payments in, across two currencies.