The Token Factory module enables creation and management of custom tokens with configurable parameters and hooks.

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Parameters

ParameterTypeDescription
denom_creation_feeCoinsFee charged for creating new custom tokens
denom_creation_gas_consumeuint64Additional gas consumed during token creation
fee_collector_addressstringAddress where creation fees are sent
whitelisted_hooksWhitelistedHook[]List of approved before-send hook contracts

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Messages

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MsgCreateDenom

Create a new custom token denomination. Fields:
  • sender: Address creating the token
  • subdenom: Alphanumeric identifier (max 44 characters)
Response:
  • new_token_denom: Full denomination (factory/{creator_address}/{subdenom})

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MsgMint

Mint tokens to the sender’s address or specified mint_to_address (admin only). Fields:
  • sender: Token admin address
  • amount: Coin to mint
  • mint_to_address: Recipient address (optional, defaults to sender)

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MsgBurn

Burn tokens from the sender’s address or specified burn_from_address (admin only). Fields:
  • sender: Token admin address
  • amount: Coin to burn
  • burn_from_address: Address to burn from (optional, defaults to sender)

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MsgChangeAdmin

Change the admin of a token denomination (admin only). Fields:
  • sender: Current admin address
  • denom: Token denomination
  • new_admin: New admin address (empty string to renounce)

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MsgSetDenomMetadata

Set or update token metadata using a metadata file (admin only). Fields:
  • sender: Token admin address
  • metadata: Token metadata (bank module metadata format)

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MsgSetBeforeSendHook

Set or remove a before-send hook for a token (admin only). Fields:
  • sender: Token admin address
  • denom: Token denomination
  • contract_addr: Hook contract address (empty to remove)

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MsgForceTransfer

Force a transfer that bypasses before-send hooks (admin only). Fields:
  • sender: Token admin address
  • amount: Coin to transfer
  • transfer_from_address: Source address
  • transfer_to_address: Destination address

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Queries

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QueryParams

Retrieve current module parameters. CLI: 
neutrond query tokenfactory params

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QueryDenomAuthorityMetadata

Retrieve admin address for a token denomination. CLI: 
neutrond query tokenfactory denom-authority-metadata factory/creator/subdenom

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QueryDenomsFromCreator

Retrieve all tokens created by a specific address. CLI: 
neutrond query tokenfactory denoms-from-creator neutron1creator...

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QueryBeforeSendHookAddress

Retrieve the before-send hook contract for a token. CLI: 
neutrond query tokenfactory before-send-hook factory/creator/subdenom

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QueryFullDenom

Construct the full denomination from creator and subdenom. Note: This query is available via gRPC but not implemented in CLI.

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Key Concepts

  • Token Format: factory/{creator_address}/{subdenom}
  • Admin Control: Token creators have admin rights by default
  • Before-Send Hooks: Optional contracts called before every transfer
  • Whitelisted Hooks: Only governance-approved contracts can be used as hooks
  • Creation Fees: Configurable fees sent to fee collector address
  • Force Transfer: Admins can bypass hooks for emergency situations
  • Length Limits: Subdenom max 44 chars, creator max 75 chars
  • Module Account Protection: Burning from module accounts is prevented