Gas Sponsor

Lets a Drupal site pay blockchain transaction fees on behalf of its users, so members never need to hold crypto to take part. The module talks to a small, separately run relay service (gas-sponsor-relayer) that holds the sponsor key; the site itself never holds a private key.

Features

• Sponsored execution of Safe transactions that the Safe's own owners have signed: the relay pays the fee, it cannot move funds or act without those signatures.
• An allowlist of permitted contract calls, with delegate calls refused unless explicitly listed.
• Per-site daily and monthly spending caps, with plain-language messages when a limit is reached.
• Bearer-token authentication between the site and the relay; the relay publishes no ports to the internet in the reference setup.
• Off by default: no key is loaded and every relay route answers "disabled" unless web3 is switched on for the site.

Status

Under active development; testnets only (Sepolia, Base Sepolia). No release yet; follow the 1.0.x branch. Used by Safe Governance.