> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blockscout.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Blockscout APIs

> How to use Blockscout APIs

## Blockscout API Usage

<Check>
  Our Universal PRO API is now available, please go to [https://dev.blockscout.com/](https://dev.blockscout.com/) to get an API key and start exploring.\
  \
  Note: Your old MyAccount API keys and prior routes will not work with the new PRO API. [Get a new key](https://dev.blockscout.com/) and [update your routes](/devs/pro-api).
</Check>

<CardGroup cols={3}>
  <Card title="PRO API" icon="rectangle-pro" href="/devs/pro-api">
    API Overview, Routes, Plans and Credits
  </Card>

  <Card title="ETHERSCAN MIGRATION" icon="person-running-fast" href="/devs/migrate-from-etherscan">
    Port over seamlessly and get more calls for less \$\$
  </Card>

  <Card title="DEV PORTAL" icon="torii-gate" href="/devs/dev-portal">
    Use the Dev Portal to enhance your API experience.
  </Card>

  <Card title="USE CASES" icon="user-chef" href="/devs/use-cases-overview">
    Example apps and agent flows
  </Card>

  <Card title="ARCHIVE" icon="book-open-cover" href="/devs/apis/api-archive">
    Prior info on our REST, RPC and API keys for self-hosted chains
  </Card>
</CardGroup>