# Endpoint URLs

An API key generated on OpenScan <img src="https://docs.blocksscan.io/~gitbook/image?url=https%3A%2F%2F3031522054-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252FXu62EOofQp3ILGO91lm4%252Fuploads%252Fgit-blob-4fe1a01894990fe9e1645e1d59d95a1b2688f64c%252FopenscanLogo.jpg%3Falt%3Dmedia&#x26;width=36&#x26;dpr=2&#x26;quality=100&#x26;sign=898479d4&#x26;sv=2" alt="" data-size="line">​ can be used across all **mainnet** and **testnet** explorers.

Similarly, all endpoints and parameter formatting remain the same across testnet explorers, you are only required to change the relevant API endpoint URL as follows.

| Network         | URL                                | Documentation                 |
| --------------- | ---------------------------------- | ----------------------------- |
| Mainnet         | <https://bapi.blocksscan.io/>      | <https://docs.blocksscan.io/> |
| Apothem TestNet | <https://abapi.blocksscan.io/>     |                               |
| DevNet          | <https://devnetapi.blocksscan.io/> |                               |