# Anthropic Claude

Connect your Anthropic account to use Claude models for the assistant, prompts, and AI rules.

{% hint style="warning" %}
Anthropic API access requires prepaid credits or a billing plan. A **Claude Pro subscription** ($20/month) is not the same as API access. You need a separate API key from the Anthropic Console.
{% endhint %}

## Setup

{% stepper %}
{% step %}
**Get your Anthropic API key**

Create an account at [console.anthropic.com](https://console.anthropic.com/) if you don't have one.

Go to **API Keys** and click **Create Key**. Copy the key somewhere safe. You won't be able to see it again.

Make sure you have [billing set up](https://console.anthropic.com/settings/billing) with prepaid credits or a payment method.
{% endstep %}

{% step %}
**Add the integration in Missive**

In Missive, go to **Settings** > **Integrations** > click **Add integration** > search for **Anthropic** and click **Add to Missive**.

Enter your **API key** and click **Add**.
{% endstep %}

{% step %}
**Share with your team (optional)**

To let your team use AI features, share the integration:

Go to **Settings** > **Integrations** > **Anthropic** and click **Share integration** at the top.

{% hint style="warning" %}
Shared integrations mean everyone uses the same API key. All usage bills to your Anthropic account.
{% endhint %}
{% endstep %}

{% step %}
**Restrict available models (optional)**

By default, all models are available to your team. To limit which models they can choose in the Assistant:

Go to **Settings** > **Integrations** > **Anthropic** and scroll to **Models**.

Select the models you want to make available. Choosing **All models** automatically includes any future models. Deselecting specific models prevents your team from using them.
{% endstep %}
{% endstepper %}

## Available models

### Assistant models

| Model             | Best for                                              | Speed    | Quality |
| ----------------- | ----------------------------------------------------- | -------- | ------- |
| Claude Opus 4.7   | Complex reasoning, nuanced writing, detailed analysis | Moderate | Highest |
| Claude Sonnet 4.6 | Good balance of speed and quality, most daily tasks   | Fast     | High    |
| Claude Haiku 4.5  | Quick tasks, lowest cost                              | Fastest  | Good    |

For drafting customer-facing email replies, Claude Opus 4.7 gives the best results. Claude Sonnet 4.6 is a good all-rounder for most daily tasks.

### Rule models

| Model            | Description                                               |
| ---------------- | --------------------------------------------------------- |
| Claude Haiku 4.5 | Fast, cost-effective for classification and routing tasks |

## Data privacy

By default, Anthropic does **not** use API inputs or outputs to train models. Data submitted through the API is retained for 30 days for safety monitoring, then deleted.

Review your settings at [platform.claude.com/settings/privacy](https://platform.claude.com/settings/privacy):

* **Allow user feedback** controls whether feedback on model responses (including full prompts and responses) is sent to Anthropic.
* **Development Partner Program** is an opt-in program that shares data with Anthropic for model training. Do not join if you want to keep your data private.

## Cost and usage

Anthropic bills based on tokens processed (input and output). A token is roughly 3/4 of a word. Check [Anthropic's pricing page](https://platform.claude.com/docs/en/about-claude/pricing) for current rates.

Reading a 10-email thread and drafting a reply typically uses 2,000 to 4,000 tokens. At that rate, even heavy daily use of the assistant stays well under a dollar per day with Claude Sonnet 4.6.

### Managing costs

* **Use the best model for manual tasks.** When you trigger AI yourself (drafting a reply, asking the assistant a question), the cost per interaction is negligible. Use Claude Opus 4.7 for the best results.
* **Use Haiku for AI rules.** Rules run automatically on every matching message, so costs add up. Claude Haiku 4.5 is fast and cheap for classification and routing.
* **Set spending limits** in your [Anthropic account settings](https://console.anthropic.com/settings/limits).
* **Monitor usage** in the [Anthropic Console](https://console.anthropic.com/settings/usage).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://missiveapp.com/docs/ai/setup/anthropic.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.