polyoxide-relay

Gasless transaction relay client for Polymarket's Safe and Proxy wallet infrastructure.

This crate enables submitting on-chain transactions through Polymarket's relayer service, which pays gas fees on behalf of users. It supports two wallet types:

• Safe wallets — Gnosis Safe multisig contracts (must be deployed before first use)
• Proxy wallets — lightweight proxy contracts that auto-deploy on first transaction

Authentication

Relay operations require a private key for EIP-712 transaction signing and optional builder API credentials (BUILDER_API_KEY, BUILDER_SECRET, BUILDER_PASS_PHRASE) for authenticated relay submission.

Example

use polyoxide_relay::{RelayClient, BuilderAccount, BuilderConfig};

# async fn example() -> Result<(), polyoxide_relay::RelayError> {
let config = BuilderConfig::new("key".into(), "secret".into(), None);
let account = BuilderAccount::new("0xprivatekey...", Some(config))?;
let client = RelayClient::from_account(account)?;

let latency = client.ping().await?;
println!("Relay API latency: {}ms", latency.as_millis());
# Ok(())
# }