Mempool API
Mempool (mempool.space) has 2 public methods: get Bitcoin fees and get Bitcoin address. Each costs 1 credit per completed run (1¢ with pay as you go); failed runs are free.
Unofficial. Not affiliated with or endorsed by Mempool.
Methods
2Gets current Bitcoin fee-rate recommendations, the estimated USD cost of a 140-vbyte transaction at each rate, and the Bitcoin price in USD. Confirmation times are estimates, not guarantees.
Returns fee rates in sat/vbyte, USD cost per rate, Bitcoin price in USD, reading time
Readmempool.space/get_bitcoin_feesReturns a Bitcoin address's confirmed and pending balances, lifetime received and sent totals, and up to 50 recent transactions. USD balance uses the latest reported Bitcoin price.
Returns address, confirmed and unconfirmed balances (BTC, confirmed USD), total received and sent, transaction count, recent transactions
Readmempool.space/get_bitcoin_address