Querying the EVM

The seid q evm subcommands let you read EVM state — token data, address associations, and transactions — without sending a transaction or running your own node.

Prerequisites

If your machine is not running a Sei node, append the --node flag to every seid q evm command, pointing at a Sei Cosmos RPC endpoint (the same kind used by seid status):

--node https://<sei-cosmos-rpc-url>

The one exception is seid q evm tx, which uses --evm-rpc to point at an EVM JSON-RPC endpoint (port 8545 by convention). See Transaction Lookup below.

Refer to the RPC endpoints page for a list of available RPC endpoints.

Output format. Most commands print YAML by default. Pass -o json for JSON. ERC20 read methods (name, balanceOf, …) return a bare value with no formatting — the result below is the raw stdout.

Address Mapping

Sei addresses (sei1…) and EVM addresses (0x…) are linked via an on-chain association set the first time an account signs an EVM transaction or calls the address-association precompile. Until then, the two address spaces are independent.

Get Sei Address from EVM Address

seid q evm sei-addr [evm address]

Example:

seid q evm sei-addr 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55

Output:

associated: true
sei_address: sei13ytysxs88z0fp9cssagg77ekpecrrlrwce9pwl

Get EVM Address from Sei Address

seid q evm evm-addr [sei address]

Example:

seid q evm evm-addr sei13ytysxs88z0fp9cssagg77ekpecrrlrwce9pwl

Output:

associated: true
evm_address: 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55

If the account hasn’t been associated yet, associated is false and the other field is empty. This is normal for accounts that have only ever transacted on one side of the chain.

ERC20 Contract Queries

Call standard view methods on any ERC20 contract:

seid q evm erc20 [contract address] [method] [arguments...]

Example — query Wrapped Sei (WSEI):

seid q evm erc20 0xE30feDd158A2e3b13e9badaeABaFc5516e95e8C7 symbol

Output:

WSEI

Example — balance:

seid q evm erc20 0xE30feDd158A2e3b13e9badaeABaFc5516e95e8C7 balanceOf 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55

Output (raw integer, in smallest unit):

Supported methods:

name — token name
symbol — token symbol
decimals — token decimals
totalSupply — total supply
balanceOf [address] — balance of an address
allowance [owner] [spender] — current allowance

For arbitrary methods or non-standard contracts, use payload with the contract ABI.

Payload Generation

Generate ABI-encoded call data without sending a transaction. Useful for crafting seid tx evm call-contract calls or inspecting expected calldata.

ERC20
ERC721
ERC1155
Custom ABI

ERC20 Payload Generation

seid q evm erc20-payload [method] [arguments...]

Transfer tokens (1 token, 18 decimals):

seid q evm erc20-payload transfer 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55 1000000000000000000

Output:

a9059cbb000000000000000000000000da52b9e673d1f48fcd9916b3f606a136a8ea5e550000000000000000000000000000000000000000000000000de0b6b3a7640000

Approve spender:

seid q evm erc20-payload approve 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55 2000000000000000000

Output:

095ea7b3000000000000000000000000da52b9e673d1f48fcd9916b3f606a136a8ea5e550000000000000000000000000000000000000000000000001bc16d674ec80000

Transfer from (pulls tokens from from to to, using a prior approve):

seid q evm erc20-payload transferFrom 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55 0xdEAD000000000000000042069420694206942069 1500000000000000000

Output:

23b872dd000000000000000000000000da52b9e673d1f48fcd9916b3f606a136a8ea5e55000000000000000000000000dead00000000000000004206942069420694206900000000000000000000000000000000000000000000000014d1120d7b160000

Supported methods:

transfer [to] [amount]
approve [spender] [amount]
transferFrom [from] [to] [amount]

Amounts are in the token’s smallest unit (e.g., wei for an 18-decimal token; 1000000 for 1 USDC with 6 decimals).

ERC721 Payload Generation

seid q evm erc721-payload [method] [arguments...]

Approve a token ID:

seid q evm erc721-payload approve 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55 123

Output:

095ea7b3000000000000000000000000da52b9e673d1f48fcd9916b3f606a136a8ea5e55000000000000000000000000000000000000000000000000000000000000007b

Transfer a token:

seid q evm erc721-payload transferFrom 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55 0xdEAD000000000000000042069420694206942069 123

Output:

23b872dd000000000000000000000000da52b9e673d1f48fcd9916b3f606a136a8ea5e55000000000000000000000000dead000000000000000042069420694206942069000000000000000000000000000000000000000000000000000000000000007b

Set operator approval:

seid q evm erc721-payload setApprovalForAll 0xdEAD000000000000000042069420694206942069 true

Output:

a22cb465000000000000000000000000dead0000000000000000420694206942069420690000000000000000000000000000000000000000000000000000000000000001

Supported methods:

approve [spender] [tokenId]
transferFrom [from] [to] [tokenId]
setApprovalForAll [operator] [true|false]

ERC1155 Payload Generation

seid q evm erc1155-payload [method] [arguments...]

Safe transfer:

seid q evm erc1155-payload safeTransferFrom 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55 0xdEAD000000000000000042069420694206942069 123 5 0x

Output:

f242432a000000000000000000000000da52b9e673d1f48fcd9916b3f606a136a8ea5e55000000000000000000000000dead000000000000000042069420694206942069000000000000000000000000000000000000000000000000000000000000007b000000000000000000000000000000000000000000000000000000000000000500000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000023078000000000000000000000000000000000000000000000000000000000000

Safe batch transfer:

seid q evm erc1155-payload safeBatchTransferFrom 0xDa52B9E673d1f48FcD9916b3F606A136a8eA5e55 0xdEAD000000000000000042069420694206942069 "[123,456]" "[5,10]" 0x

Set operator approval:

seid q evm erc1155-payload setApprovalForAll 0xdEAD000000000000000042069420694206942069 true

Supported methods:

safeTransferFrom [from] [to] [tokenId] [amount] [data]
safeBatchTransferFrom [from] [to] [tokenIds] [amounts] [data]
setApprovalForAll [operator] [true|false]

For batch operations, pass arrays as quoted bracketed strings: "[123,456]". The trailing data field is a hex string (use 0x for empty).

Custom ABI Payload Generation

Encode a call against any contract by supplying its ABI:

seid q evm payload [abi-filepath] [method] [arguments...]

Example:

seid q evm payload ./MyContract.json myMethod arg1 arg2

The ABI file must be a JSON array of function definitions, in the same shape Hardhat/Foundry emit (the abi field of an artifact, not the whole artifact).

Pointer System

Pointers bridge the EVM and CosmWasm sides of Sei: a CW20 can be exposed as an ERC20 (via an EVM pointer at a 0x address) and an ERC20 can be exposed as a CW20 (via a CW pointer at a sei1… address). The same applies to NFTs (CW721/ERC721) and multi-token contracts (CW1155/ERC1155).

Transaction Lookup

Query Transaction by Hash

Equivalent to eth_getTransactionByHash:

seid q evm tx [hash] --evm-rpc [EVM RPC endpoint]

Example:

seid q evm tx 0x828c91592453fe7c5bf743204495a35bf02b67b579b8f59ee7eea8af031d7c14 \
  --evm-rpc https://evm-rpc.sei-apis.com

Output:

{
  "blockHash": "0x5620c15afd9a1d0ab19d7560043df6e038d731c6205974dca7a55900071e3864",
  "blockNumber": "0xc5e1386",
  "from": "0xda52b9e673d1f48fcd9916b3f606a136a8ea5e55",
  "gas": "0x493e0",
  "gasPrice": "0xe1614bd00",
  "maxFeePerGas": "0xe1614bd00",
  "maxPriorityFeePerGas": "0xe1614bd00",
  "hash": "0x828c91592453fe7c5bf743204495a35bf02b67b579b8f59ee7eea8af031d7c14",
  "input": "0x9cab5684...",
  "nonce": "0x0",
  "to": "0x7507454444fa193d39f1392076bc784b77a7a8ff",
  "transactionIndex": "0x0",
  "value": "0x0",
  "type": "0x2",
  "accessList": [],
  "chainId": "0x531",
  "v": "0x0",
  "r": "0x468ac709b74e666834bcc740e5156e019fd0ba40cff7f8a59a46f08bff56eb2b",
  "s": "0x3496458ec06b57315721cf5e6be810b9548744a5dafab1739b8fdcff23939939",
  "yParity": "0x0"
}

This is the only seid q evm command that takes --evm-rpc (an EVM JSON-RPC endpoint, typically port 8545) instead of --node (a Cosmos RPC). The default if you omit the flag is http://0.0.0.0:8545, which only works if you’re running a local node. See RPC endpoints for hosted EVM RPCs.

Common Use Cases

Check Token Balance and Info

# Token metadata
seid q evm erc20 0xtoken... symbol
seid q evm erc20 0xtoken... decimals

# Balance (raw integer, in smallest unit)
seid q evm erc20 0xtoken... balanceOf 0xuser...

Prepare and Send a Transaction

# 1. Encode the calldata
PAYLOAD=$(seid q evm erc20-payload transfer 0xrecipient... 1000000000000000000)

# 2. Send via seid
seid tx evm call-contract 0xtoken... $PAYLOAD --from mykey

Overview

Essentials

seid CLI

Frontend Development

Smart Contracts

sei-js Library

Videos

Ecosystem Tutorials

Reference

Hardware Wallets

Prerequisites

Address Mapping

Get Sei Address from EVM Address

Get EVM Address from Sei Address

ERC20 Contract Queries

Payload Generation

ERC20 Payload Generation

ERC721 Payload Generation

ERC1155 Payload Generation

Custom ABI Payload Generation

Pointer System

Transaction Lookup

Query Transaction by Hash

Common Use Cases

Check Token Balance and Info

Prepare and Send a Transaction

​Prerequisites

​Address Mapping

​Get Sei Address from EVM Address

​Get EVM Address from Sei Address

​ERC20 Contract Queries

​Payload Generation

​ERC20 Payload Generation

​ERC721 Payload Generation

​ERC1155 Payload Generation

​Custom ABI Payload Generation

​Pointer System

​Transaction Lookup

​Query Transaction by Hash

​Common Use Cases

​Check Token Balance and Info

​Prepare and Send a Transaction

Prerequisites

Address Mapping

Get Sei Address from EVM Address

Get EVM Address from Sei Address

ERC20 Contract Queries

Payload Generation

ERC20 Payload Generation

ERC721 Payload Generation

ERC1155 Payload Generation

Custom ABI Payload Generation

Pointer System

Transaction Lookup

Query Transaction by Hash

Common Use Cases

Check Token Balance and Info

Prepare and Send a Transaction