{"service":"Seneschal private transaction relay","public_mempool":false,"what":"POST a locally-signed raw transaction; we forward it only to private block builders (+ our own rbuilder), never the public mempool, so it cannot be front-run. You keep custody — we never see your key.","premium_endpoint":"/v1/premium/private-relay","request":{"method":"POST","body":{"raw_tx":"0x<your locally-signed transaction>"}},"builders":[{"key":"seneschal-rbuilder","name":"Seneschal rbuilder","method":"eth_sendRawTransaction","ours":true},{"key":"flashbots","name":"Flashbots","method":"eth_sendPrivateTransaction","ours":false},{"key":"titan","name":"Titan","method":"eth_sendPrivateTransaction","ours":false}],"price":"$0.50","caveats":["We do not simulate or endorse the transaction — we relay it privately, as signed.","Inclusion is best-effort: a private tx only lands if one of these builders wins the block.","Sign locally; never share a private key. Only the signed raw bytes are sent."]}