> ## Documentation Index > Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt > Use this file to discover all available pages before exploring further. # Introduction > Chainstack is the go-to blockchain node platform across 70+ chains, managed and self-hosted. Topping up with crypto is also an option at [Billing](https://console.chainstack.com/user/settings/billing). We support topping up with [150+ cryptocurrencies](https://nowpayments.io/supported-coins) . To submit a request for a new product capability, protocol support, or other improvements, visit our [ideas portal](https://ideas.chainstack.com/). For assistance, reach out to [Chainstack support](https://support.chainstack.com). ## Chainstack faucets ## Supported regions, locations, chains. See also [Available clouds, regions, and locations](/docs/nodes-clouds-regions-and-locations).