Are there any services offering blockchain.info-like API for multiple currencies? I am wondering whether there are any services that offer some API like blockchain.info does but for multiple currencies at the same time. I know there are a lot of block explorers out there, but they appear to be disjointed and focused on one currency at a time.
BlockCypher is adding support for Litecoin, we're currently downloading the LTC block chain and will put it out next week. All the  Bitcoin APIs will work in the same way for Litecoin.