Yes, you can upgrade or downgrade at any time. The change applies immediately and billing is prorated.
Yes, on monthly plans: 7 days with full access and 200 AI credits to test everything. A card is required to start (that's what lets us bill you afterwards if you stay), but nothing is charged on day one, and we email you 3 days before the end so nothing is a surprise. Cancel before then and you pay nothing. One trial per account. Annual plans have no trial — they are billed on signup and give you 2 months free instead. One exception: creating an API key for MCP access ends the trial early and starts billing straight away, after asking you to confirm.
Your credits refill to the full amount each month when your subscription renews. Make the most of them within the month.
No, there are no refunds — but that's exactly what the trial is for: 7 free days on monthly plans to check it's right for you, with no payment and no commitment. Nothing is charged during the trial and you can cancel any time before it ends from your account. Once billed, your subscription stays cancellable any time for future periods.