Endpoints

Submit Gasless

Submit a signed gasless transaction for relay

Submit a signed gasless transaction for relay. Used for routes where the user signs a message instead of submitting an on-chain transaction directly.

POSThttps://api.superbridge.app/v1/submit_gasless

Body

application/json

providerstringrequired

chainUidstring

Chain UUID (internal identifier)

chainIdstring

Native chain ID (e.g. 1 for Ethereum)

chainKeystring

Shorthand chain identifier (e.g. eth for Ethereum)

signaturestringrequired

metadatastringrequired

You must provide the provider, signature, and metadata fields. The signature is the user's signed message, and metadata is the opaque payload returned by the route. For the chain identifier, provide one of chainUid, chainId, or chainKey — see Chain Identifiers for details on each format.

Response

Returns confirmation that the gasless transaction was submitted for relay.