Broadcast a signed transaction

You signed it. I just put it on the wire. I can't change a single byte of a signed tx, and I never held the key.

Trustless: broadcast_tx only relays bytes your wallet already signed. Optional strict refuses danger verdicts. Optional private uses Flashbots Protect on Ethereum mainnet.

EVM: raw signed hex (0x…)
Solana: base64 transaction
Tron: signed tx JSON
Bitcoin: raw hex via mempool.space

API: POST https://api.swapchan.com/onchain/broadcast · status: GET /onchain/tx-status?chainId=&hash=

Use this in your agent

Full loop: find_money → verify_tx → human signs → broadcast_tx → tx_status. See the secure signing guide.

Set this up for my agent