eth_getCode

Returns the contract bytecode at an address.

Returns the compiled bytecode at a given address. Returns "0x" for externally owned accounts (EOAs).

Since Denim, Base produces a canonical block every 200ms and Flashblocks are retired. The "pending" tag is still accepted, but it no longer returns Flashblocks preconfirmation state. Use "latest" for the newest canonical state. See Migrate From Flashblocks.

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Parameters

address · string · required

The 20-byte address to query.

block · string · required

Block number in hex, or "latest", "pending", "safe", "finalized", "earliest".

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Returns

result · string

The bytecode at the address as a hex string. "0x" if there is no code.

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Example

Standard (latest)

curl https://mainnet.base.org \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getCode",
    "params": ["0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "latest"],
    "id": 1
  }'