Fee rate endpoints

GET /feerate

Returns the estimated fee rate needed for a transaction to be included in the most recent blocks, based on mempool state:

curl https://api-server.mintlayer.org/api/v2/feerate

"100000000000"

The result is a JSON string: atoms per kilobyte (here 1000 MLT per kB). There is no required fee for block inclusion in Mintlayer, but transactions paying below the current estimate may take longer to be picked up by block producers.

Query parameters

Parameter	Default	Description
in_top_x_mb	5	Base the estimate on the highest-paying transactions that fill the top X megabytes of the mempool

curl "https://api-server.mintlayer.org/api/v2/feerate?in_top_x_mb=1"

The value is cached server-side for 30 seconds; repeated calls within the window return the cached estimate.

Go SDK

feerate, err := client.Indexer.GetFeeRate(ctx, 5)   // GET /feerate

See the indexer client reference.