simulateTransaction
POST
/{apiKey}
Simulates a transaction invocation to estimate resource fees, required authorizations, and return values without submitting to the network.
Path Parameters
stringrequireddefaults to
docs-demoFor higher throughput, create your own API key
Request
stringrequired
Base64-encoded TransactionEnvelope XDR with a single invokeHostFunction operation.
objectoptional
Resource configuration with instructionLeeway for extra instruction budget.
stringoptional
Output format for XDR fields, either "base64" (default) or "json".
stringoptional
Authorization mode. "enforce" (default), "record", or "record_allow_nonroot".
Responses
200
Simulation result with fee estimate, events, and transaction data.
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