Billing

Rails Agents Cloud is prepaid. Tiny Bubble does not fund free hosted LLM or sandbox usage.

Free

• Sign up, create API keys, define agents, use the dashboard UI
• Optional BYOK in sandbox (your OpenAI/Anthropic key)

Paid (required for hosted .run)

1. Credits — minimum $10 top-up before any hosted run
2. Usage debits Credits at Vercel infra cost × (1 + margin)
3. Production — subscribe, then promote; use rak_live_… keys

If Credits are empty or missing, the API returns 402 and the gem raises:

RailsAgents::PaymentRequired
# message + checkout_url

Full policy

See the canonical doc: PRICING.md.

Next

• Getting Started
• Configuration