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Parameters

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chainId
string
default:"bitcoin-testnet4"
required
Unique identifier for a blockchain network.
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id
number
default:1
required
Request identifier used to match responses.
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jsonrpc
string
default:"2.0"
required
JSON-RPC version.
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method
string
default:"createpsbt"
required
JSON-RPC method name.
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params
object
required
Parameters: [inputs, outputs, locktime?, replaceable?].Positional parameters for createpsbt:
  • params[0]: Transaction inputs (each with txid, vout, sequence).
  • params[1]: Transaction outputs mapping addresses to amounts or scripts.
  • params[2]: Optional locktime.
  • params[3]: Optional replaceable flag.

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Returns

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result
string
Newly crafted PSBT encoded as base64.