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POST
/
da5f4c6274cd225217d352308a952d2f
zks_getTestnetPaymaster | zkSync Era
curl --request POST \
  --url https://zksync-sepolia.core.chainstack.com/da5f4c6274cd225217d352308a952d2f \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "zks_getTestnetPaymaster",
  "params": []
}
'
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "paymasterAddress": "<string>"
  }
}
zkSync Era API method that returns the address of the testnet paymaster. This paymaster is available on testnets and facilitates transactions where fees can be paid using ERC-20 compatible tokens, enabling developers to test their applications without needing native network tokens for fee payment.
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​
Parameters

  • none

​
Response

  • result — the address of the testnet paymaster.
The interactive example fetches the paymaster address from the zkSync Sepolia testnet.

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Use case

Developers working on DApps for the zkSync network could use the zks_getTestnetPaymaster method to configure their applications to use the testnet paymaster for transactions. This allows for seamless testing of fee payments in ERC-20 tokens, enabling broader testing scenarios without the need for acquiring native testnet tokens.

Body

application/json
​
jsonrpc
string
default:2.0
required
Example:

"2.0"

​
id
integer
default:1
required
Example:

1

​
method
string
default:zks_getTestnetPaymaster
required
Example:

"zks_getTestnetPaymaster"

​
params
array
required

Response

200 - application/json

Successful response

​
jsonrpc
string
default:2.0
required
Example:

"2.0"

​
id
integer
default:1
required
​
result
object
required
Last modified on May 18, 2026