Post /v2/tx/submit

curl --request POST \
  --url https://api.skip.build/v2/tx/submit \
  --header 'Content-Type: application/json' \
  --data '{
  "tx": "base64 encoded transaction",
  "chain_id": "osmosis-1"
}'

{
  "tx_hash": "F30790E79987F18F3A4DA8C7A9BA9FD837043EF59D8236CA85180E1078BC607F",
  "explorer_link": "https://www.mintscan.io/osmosis/tx/F30790E79987F18F3A4DA8C7A9BA9FD837043EF59D8236CA85180E1078BC607F"
}