May I ask what kind of UTXOs your looking for?

If you're looking for an API, there is also:

https://chain.com/docs#bitcoin-address-unspents (example)
https://toshi.io/docs/#get-address-unspent-outputs (example)
http://btc.blockr.io/documentation/api (example)

Edit: since you mentioned Insight:

https://github.com/bitpay/insight
https://github.com/coinbase/toshi
https://github.com/spesmilo/sx + https://github.com/libbitcoin/obelisk
https://github.com/bitcoin-abe/bitcoin-abe (I think this should be work as well, but I'm not really familiar with it)

I once build a tool for this, but with the goal in mind of reducing UTXO "bloat" from meta protocols. Maybe this is of help for you nevertheless? You should probably remove the value filter which is set to [0.00000546, 0.00018] BTC as per default via "Settings":

http://redeem.bitwatch.co/

It's build on https://github.com/dexX7/bitcoin/commits/master-addrindex-extended (last update three months ago). Another maintainer of such a project is jmcorgan: https://github.com/jmcorgan/bitcoin/tree/addrindex. All credit go to sipa for his original proposal: https://github.com/bitcoin/bitcoin/pull/2802


Edit: there is also http://api.bitwatch.co/ for some really not-so-awesome-API.

The price of a bitcoin does not affect its usefulness. It is just as useful at $1 as it is at $1000.