# Get parameters for constructing a new transaction

GET

/v2/transactions/params

## Authorizations

- **[api_key](https://dev.algorand.co/reference/rest-api/algod/#api_key)**

## Responses

### 200

TransactionParams contains the parameters that help a client construct a new transaction.

Select media type application/json

TransactionParams contains the parameters that help a client construct a new transaction.

object

**consensus-version**  
required  
ConsensusVersion indicates the consensus protocol version as of LastRound.

string

**fee**  
required  
Fee is the suggested transaction fee.  
Fee is in units of micro-Algos per byte.  
Fee may fall to zero but transactions must still have a fee of at least MinTxnFee for the current network protocol.

integer

**genesis-hash**  
required  
GenesisHash is the hash of the genesis block.

string format: byte  
/^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/

**genesis-id**  
required  
GenesisID is an ID listed in the genesis block.

string

**last-round**  
required  
LastRound indicates the last round seen

integer

**min-fee**  
required  
The minimum transaction fee (not per byte) required for the txn to validate for the current network protocol.

integer

### 401

Invalid API Token

Select media type application/json

An error response with optional data field.

object

**data**

object

**message**  
required  
string

### 500

Internal Error

Select media type application/json

An error response with optional data field.

object

**data**

object

**message**  
required  
string

### 503

Service Temporarily Unavailable

Select media type application/json

An error response with optional data field.

object

**data**

object

**message**  
required  
string

### default

Unknown Error