Submit transactions by sequence ID

post

https://api-sdk.lmnl.dev/api/v2/transactions/submit

This API is a request to submit a specific batch of pending transactions for a v2 MPC wallet (hot, deposit, or online cold wallet whose signer is accessible via API), by sequenceId, instead of submitting every pending transaction on the wallet. For each transaction, this call assigns the on-chain nonce, refreshes the fee estimate, signs the transaction, and submits it for processing. Not available for multisig v2 wallets or v1 wallets. A response can report some sequenceIds as processed and others as failed within the same 200 response; a failed entry for one sequenceId does not mean the whole batch was rejected.

Responses

Language

Credentials

Basic

base64

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Response

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application/json

200Batch submit completed. Returns which sequenceIds were processed and which failed, with a reason for each failure.

400Invalid request body, or a batch-level condition rejected by the submit gate before any signing was attempted.

401Missing or invalid authentication credentials.

404Submit flow not enabled for your organization, or one or more sequenceIds not found for the wallet. Forwarded from the submit gate.

409A transaction in the batch could not be nonce-assigned due to a concurrent conflict, or landed in an unexpected state. Rare. Forwarded from the submit gate. Safe to retry the batch.

500Internal server error, either from the submit gate refreshing a transaction, or from this endpoint's own signing pipeline.