eth_sendTransaction

Important: Dwellir's shared Polygon endpoints do not manage user private keys. JSON-RPC nodes cannot unlock your account, so eth_sendTransaction calls will fail. Sign transactions client-side and broadcast them with eth_sendRawTransaction.

Why this method is disabled on shared nodes

• eth_sendTransaction requires the node to hold and unlock the from account's private key.
• Managed infrastructure providers disable it for security reasons rather than storing customer keys on shared servers (for example, Infura explicitly blocks the method on shared endpoints).

Recommended workflow

1. Build the raw transaction locally with your wallet or SDK.
2. Sign the payload client-side (hardware wallet, custodial service, or library).
3. Submit the signed hex string with eth_sendRawTransaction.

Example response from the shared endpoint

curl -s -X POST https://api-polygon-mainnet-full.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_sendTransaction","params":[{"from":"0x0000000000000000000000000000000000000000"}],"id":1}'

{"jsonrpc":"2.0","id":1,"error":{"code":-32000,"message":"unknown account"}}

Need help? Contact our support team or use the dedicated eth_sendRawTransaction guide.