To use Content Flow with "Bring Your Own Key", you need an API key from one of our supported AI providers. Pick one, follow the steps, and you're ready to go.
Go to console.x.ai and click Sign Up. You can sign in with your X (Twitter) account or create a new account with email.
Navigate to Billing in the left sidebar and add a credit card. xAI sometimes offers free credits for new accounts — check the dashboard for current promotions.
Click API Keys in the sidebar, then Create API Key. Give it a name (e.g. "Content Flow") and copy the key immediately — it won't be shown again.
Open Content Flow, go to Settings, find the Grok (xAI) API section, paste your key, and click Test Grok connection. Done!
grok-3-fastGo to console.anthropic.com and click Sign up. Create an account with your email and verify both your email and phone number.
Go to Settings > Billing and add a credit card. Anthropic uses a prepaid system — you need to purchase at least $5 in credits to activate API access.
Navigate to API Keys in the sidebar, click Create Key, name it, and copy it. The key starts with sk-ant-...
Open Content Flow, go to Settings, find the Anthropic Claude API section, paste your key, and click Test Claude connection.
Claude Sonnet 4 (fast & affordable)Go to platform.openai.com and click Sign up. You can use email, Google, Microsoft, or Apple to create your account.
Important: This is the API platform, not ChatGPT itself. A ChatGPT Plus subscription does NOT include API credits — they are separate.
Go to Settings > Billing and add a payment method. Like Anthropic, OpenAI uses prepaid credits. Add at least $5 to get started.
Navigate to API Keys, click Create new secret key, name it, and copy it. The key starts with sk-...
Open Content Flow, go to Settings, find the OpenAI ChatGPT API section, paste your key, and click Test OpenAI connection.
GPT-4o| Provider | Sign Up | Min. Cost | Best For |
|---|---|---|---|
| Grok (xAI) | console.x.ai | Credit card (free credits possible) | Adult content, explicit messaging |
| Claude (Anthropic) | console.anthropic.com | $5 prepaid | Natural language, warm conversations |
| ChatGPT (OpenAI) | platform.openai.com | $5 prepaid | General all-rounder, captions |
Add keys for all three providers if you want. Content Flow lets you switch between them with one click — in every tab, for every tool. Try them all and see what works best for you.