Claude (Anthropic)

Billing: Anthropic bills API usage separately from any Claude consumer plan. You typically add prepaid credits or a payment method in the Console before the API works

1. Open the Claude Platform Console: platform.claude.com/dashboard
2. Sign up for an account, or log in if you already use Claude on the web
3. If prompted, complete billing setup (Plans / Billing) — API calls need credits on your account
4. Click 'Get API key' in the Dashboard view, or go to Manage → API Keys
5. Click "Create Key" (or "Create API key")
6. Name it something you will recognize later, e.g. "Airbox"
7. Copy the key immediately — Anthropic only shows the full key once
8. Paste it somewhere safe (password manager or a temporary note) until you add it to Airbox in the next section

Open Claude (Anthropic) key page →

The key usually looks like: sk-ant-… (long string; copy the whole thing)

1. Sign in at the Airbox dashboard (airbox.fyi/dashboard)
2. In the Connections card, click "+ LLM provider"
3. When asked for the provider type, enter: anthropic
4. When asked for your API key, paste the key you copied — it is encrypted and never shown again
5. When asked for a model, press Enter to accept the default or type a model name (see this page's default)
6. You should now see "anthropic" listed under Connections

Open the dashboard in a new tab if you want to follow along

Your Airbox address does not use a connection until you attach one:

1. In the Inboxes card, find your Airbox address
2. Click the gear icon (⚙) on that address to open routing settings
3. Under "AI, LLM or MCP provider", choose the connection you just added from the dropdown
4. Leave "Email a reply back" checked if you want results in your inbox (recommended)
5. Click "Save"

Subject: (* @claude #summarize *)

—or—

Subject: @claude #extract -short

New to commands? See copy-paste examples and the syntax cheat sheet

Short checklist

• Get an sk-ant-… key from platform.claude.com/settings/workspaces/default/keys
• Dashboard → + AI & LLM provider → type Claude → paste key
• Route inbox → select this connection → Save

• Native Anthropic SDK — not OpenAI-compat shim
• Tool use with MCP servers attached to the inbox

• OpenAI
• ChatGPT