eth_createAccessList

EIP-2930: dry-runs a transaction and returns the access list it would touch — addresses and storage keys — along with gas used with and without the list. Sending the resulting access list with the real transaction can reduce gas cost for transactions that read many storage slots.

Example request

curl -s https://rpc.swiftnodes.io/rpc/eth?key=YOUR_API_KEY \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_createAccessList","params":[{"from":"0x0000000000000000000000000000000000000000","to":"0x0000000000000000000000000000000000000001"},"latest"]}'

Replace YOUR_API_KEY with your SwiftNodes key (free tier available).

Chain support — 81/107 chains

Auto-probed 2026-10-11 through the real customer path (auth, routing, failover). ✓ served · ± served by some upstreams of that chain · ✗ unavailable. Full matrix: method support.