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v1

latestOpenAPI 3.1.0Proprietary2026-07-2265155163.6 KB
Exchange

Submit register trader transaction

Validates a base64-encoded transaction for the default trader account, signs it with the Phoenix onboarder, simulates it to ensure the onboarder pays no lamports, sends it to Phoenix's RPC, and returns the transaction signature.

post/v1/exchange/send-register-ixs

Request body

maxPositionsinteger nullable
traderAuthoritystring required
traderPdaIndexinteger nullable
traderSubaccountIndexinteger nullable
transactionstring required

Base64-encoded Solana transaction wire bytes signed by the user-owned required signers. The API validates, signs as onboarder, simulates, and submits it.

txFeePayerstring required

Response

includeRegisterTraderboolean required
maxPositionsinteger required
signaturestring required
traderOnboarderstring required
traderPdastring required
txFeePayerstring required