Anthropic (Claude)

Anthropic makes the Claude family of models. Connect your Anthropic key and the agent can build Claude-powered features into the apps you make with Appsanic: a chat assistant, a "summarise this" button, a classifier, or anything that turns natural language into structured JSON your app can act on.

On the marketing site this connector is shown as Claude. The provider company is Anthropic, and the key you paste in comes from the Anthropic Console.

What you get by connecting it

With your key connected, the agent can build features that call Claude for:

• Reasoning and chat - in-app assistants, question answering, and multi-turn conversation.
• Summarising and rewriting - condense a document, change the tone of a draft, extract the key points.
• Classification and extraction - sort free text into categories, or pull fields out of messy input.
• Structured (JSON) output - ask Claude for a shape your app can parse directly, rather than loose prose.

The first time the agent uses your connected Anthropic key in a build, it says so briefly in its opening sentence, so you always know when a Claude feature is being wired in.

Connecting it

You connect with a single API key, which starts with sk-ant-.

1. Sign in to the Anthropic Console and open API keys.
2. Create a key and copy it. You only see the full value once, so copy it before you close the dialog.
3. In Appsanic, go to Dashboard then Connectors then Anthropic and paste the key in.

Connecting is account-wide: connect once and every project in the account can use it. Connecting requires a paid plan.

There is no one-click OAuth for Anthropic - that exists only for Supabase and Stripe. For Anthropic you paste the key into the connector page. Once saved, the key is shown only as dots, never the value. The page also has a Test connection control to re-check the key against the live service, and a Disconnect control to remove it.

Keys and security

An Anthropic key is a secret - anyone holding it can spend money on your account - so it must never be bundled into an app people download. This connector is the secret key plus relay tier.

Instead of putting the key in the app, the generated app calls Claude through a small server-side relay that holds the key in its own environment. The agent builds the feature against that relay and writes clear setup instructions alongside it. With Supabase connected, Appsanic can deploy the relay for you as a Supabase Edge Function - you paste the key into your Supabase secrets, following the instructions the agent generates.

A few things hold throughout:

• Your saved key is encrypted at rest with AES-256-GCM. The browser only ever sees that a secret exists, shown as dots, never the value.
• The AI never sees a decrypted key, and it never asks you for a key in chat. If you paste one into the chat anyway, it refuses to use it and points you back to the connector page.
• Any key that has ever touched a chat should be rotated in the Anthropic Console.

Useful links

• Anthropic's official documentation: https://docs.anthropic.com
• Appsanic guide: AI Features in Your App

Next

Read AI Features for how to design and prompt Claude-powered features in the apps you build.