I'm looking for a well developed, maintained and stable API allowing to access bitcoin testnet. Something like Infura for Ethereum. Googling gives many results, but can somebody point me out what is really in use? In the moment for me BlockCypher looks the best, but can I really trust it? It would be nice if the API was free, but it not necessarily has to be. Cheers
Blockchain.com API could be an option. I use it for checking incoming transactions and confirmations. It is free.
mempool.space has a cool api, they allow push raw transaction, recover balance, etc. They support mainnet, testnet and signet.