> For the complete documentation index, see [llms.txt](https://docs.nebulablock.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nebulablock.com/getting-started.md).

# Getting Started

- [Getting Started](https://docs.nebulablock.com/getting-started/get-started.md): Start here: create an account, get an API key, and make your first call to Nebula Block.
- [Quickstart](https://docs.nebulablock.com/getting-started/get-started/quickstart.md): Create an account, add credit, get an API key, and make your first inference call in about five minutes.
- [Account](https://docs.nebulablock.com/getting-started/get-started/account.md): Create and activate a Nebula Block account, update your profile, reset your password, and delete an account.
- [Billing](https://docs.nebulablock.com/getting-started/get-started/billing.md): How credits work on Nebula Block: payment cards, USDC, purchasing credit, auto-pay, invoices, and usage.
- [Spending Limits](https://docs.nebulablock.com/getting-started/get-started/spending-limits.md): Every account has an hourly spending limit for GPU and CPU instances. What it is, how it grows on its own, and how to ask for more.
- [Products](https://docs.nebulablock.com/getting-started/get-started/products.md): What Nebula Block offers — serverless inference, GPU cloud, and object storage — and which tier each one needs.