Blockstream Satellite API
This is our fancy default page. Here are some interesting places worth exploring:
Learn more: Satellite API Docs
Contribute: Satellite API Code
Mainnet:
https://api.blockstream.space
Testnet (replacement for https://satellite.blockstream.com/api):
https://api.blockstream.space/testnet
If you're trying to use Tor, make sure you're using the right path. For example:
http://btcspaceda7iejsrb7ihmi5si3hhssxxxdnqvvtyz6prv2m73j7lcoqd.onion/testnet/info