capacity.lock

Capacity Lock

Build an unsigned transfer that funds a target lock address with optional memo metadata.

Open in Playground

Request Fields

network

testnet

fromAddress

CKB testnet address

lockAddress

CKB testnet address

amountCkb

decimal string

memo

optional string

feeRate

positive integer string

Sample Request

{
  "network": "testnet",
  "fromAddress": "ckt1...",
  "lockAddress": "ckt1...",
  "amountCkb": "100",
  "memo": "Grant milestone reserve",
  "feeRate": "1000"
}

Sample Response

{
  "action": "capacity.lock",
  "status": "built",
  "summary": {
    "memo": "Grant milestone reserve"
  }
}

Limitations

Not a custom lock script
Memo is metadata unless future data-cell support stores it
Requires indexer access