API Keys

API keys are what connect your FormWise Flows to AI model providers. Without at least one API key, your Agent nodes will not be able to run. Setting up your keys is quick and only needs to be done once per provider.

What are API keys?

API keys are credentials that authenticate your FormWise organization with external AI model providers. When one of your Flows runs, FormWise uses your API key to send requests to the provider and receive responses. Each provider issues its own keys, and you will need a separate key for each provider you want to use.

Supported providers

FormWise currently supports connecting your own key for three AI model providers:

• OpenAI - the GPT model family, including GPT-5.5 and GPT-4o.
• Anthropic - the Claude model family, including the current Opus, Sonnet, and Haiku tiers.
• Google (Gemini) - the Gemini model family, including Gemini 3.1 Pro and Gemini 3 Flash.

See LLM Providers for more on choosing between them. The exact model lineup evolves as providers release new versions - the Model dropdown inside each Agent node always shows the current options for whichever providers you've connected.

Adding an API key

1. Go to Settings in the sidebar.
2. Click the Integrations tab, then the API Keys sub-tab.
3. Find the provider you want to connect (OpenAI, Anthropic, or Google).
4. Click Add Key, or if a key already exists, click the edit icon to update it.
5. Paste your API key into the field.
6. Click Save.

That is it - the models from that provider are now available across your organization.

Where to get your API keys

If you do not have an API key yet, you can create one from the provider's website:

• OpenAI - platform.openai.com/api-keys
• Anthropic - console.anthropic.com/settings/keys
• Google AI - ai.google.dev

Each provider will ask you to create an account and set up billing before issuing an API key.

Security

Your API keys are handled with care:

• All keys are encrypted before being stored.
• After you save a key, the full value is never shown again in the UI. You will only see a masked version.
• Only Owners and Admins can add, edit, or remove API keys. Members and Viewers cannot access them.

If you believe a key has been compromised, revoke it on the provider's website and add a new one in FormWise.

How your Flows use API keys

Once you add an API key for a provider, all of the models from that provider become available in the Model dropdown inside every Agent node across your Flows. You do not need to configure keys on a per-Flow basis - they are shared across your entire organization.

If you have keys for multiple providers, your team can mix and match models in different Flows depending on what works best for each use case.