Anthropic (Claude) with Empryo

Anthropic makes the Claude models. Anthropic is built into Empryo: save your API key once with --set-key and every Claude model your key can access is available for chat, code and every task-router slot.

What you get

Example models

claude-opus-4-8
claude-opus-4-7
claude-opus-4-6
claude-sonnet-4-6
claude-sonnet-4-5
claude-haiku-4-5

When to use it

Pick Anthropic when you want to use Claude directly, with no gateway in between. Claude's tiers map well onto Empryo's task router: Opus for the hardest coding work, Sonnet for a balance of speed and quality, and Haiku for cheap, fast jobs like search, review and compaction. That way you pay for a top model only where it matters. With a direct key you pay Anthropic's own prices and get one bill. If you want many model families behind one key, use a gateway such as LLM Gateway or OpenRouter instead.

Set it up

Quick startLink to this section

Anthropic is built into Empryo, so all you need is an API key.

Get a key at console.anthropic.com (it starts with sk-ant-).
Save it:

bash

empryo --set-key anthropic sk-ant-...

Launch Empryo, press Ctrl+L, and pick a Claude model.

The key is written to your OS keychain when one is available (Login Keychain on macOS, libsecret on Linux, DPAPI on Windows), with a ~/.empryo/secrets.json file fallback otherwise. Inspect what's stored with empryo --list-providers.

Verify and browse modelsLink to this section

bash

empryo --list-providers          # confirm anthropic shows a key
empryo --list-models anthropic   # list available Claude models

Pass a key per-launchLink to this section

For a one-off session or CI, export the env var instead of storing it, nothing is persisted:

bash

ANTHROPIC_API_KEY=sk-ant-... empryo

Empryo's default lookup order is env var → keychain → file. If a shell-exported key keeps overriding a stored one, flip the order in ~/.empryo/config.json:

json

{ "keyPriority": "app" }

Make Claude the defaultLink to this section

Model strings are anthropic/<model>. Set a default in ~/.empryo/config.json (or .empryo/config.json for one project):

json

{
  "defaultModel": "anthropic/claude-opus-4-8",
  "thinking": { "mode": "adaptive" }
}

Route Claude tiers per taskLink to this section

Empryo's task router lets you assign a different model to each kind of job. A cheap, fast model for read-only research and a strong one for code:

json

{
  "taskRouter": {
    "spark":     "anthropic/claude-haiku-4-5",
    "ember":     "anthropic/claude-opus-4-8",
    "webSearch": "anthropic/claude-haiku-4-5",
    "verify":    "anthropic/claude-haiku-4-5",
    "compact":   "anthropic/claude-haiku-4-5"
  }
}

spark runs read-only research agents, ember runs code-writing agents, and the rest cover web search, adversarial review, and context compaction. Tune slots live in the TUI with /router.

Remove a keyLink to this section

Run /keys inside the TUI to list providers with delete shortcuts, or remove it from the keychain directly (e.g. security delete-generic-password -a empryo -s anthropic-api-key on macOS).

Keys or subscriptions

Anthropic (Claude) connects the way marked below. You can mix ways across task-router slots.

API keyAnthropic (Claude)Paste a key once. Empryo keeps it in your system keychain, and you pay the provider for what you use.
Sign inApprove Empryo in your browser and use a plan or credits you already have. There is no key to copy.
On your machineRun open models on your own computer. No key, no per-token bill, and nothing has to leave your machine.
Any compatible APIOne block of JSON config turns any OpenAI-compatible endpoint into a provider, including your own server.

Keep going

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