Tailflow
Skip to article
Browse documentation

Triggers

Token Transfer (ERC20)

Watch selected tokens and filter transfers by amount, wallet, mint, or burn.

Set up the source

Choose Token Transfer (ERC20), your chains, and up to three tokens. Search for the asset or use its contract address. Check the chosen deployments across chains.

This watches transfers of the token, not all transactions made by a wallet. To follow a wallet, filter From or To after choosing the token.

Token Transfer Trigger Configuration
1Event source
Token Transfer (ERC20)
2Filters
Edit the conditions to explore the controls. Event samples stay fixed.
Inspect Example triggers to check your selection.
3Trigger
Chains
1 selected · 3 of 7 chains shown
Fires
Event shape
token_symbol
USDC
value_decimal
125000
from_address
0x1111111111111111111111111111111111111111
Example. Choose the event source, then narrow it with a Value filter. Chains are selected in the trigger inspector.Changes stay in this example. Nothing is saved or sent.

Useful filters

Value is the human-readable token amount. Value (USD) is an indicative estimate and may be unavailable. From and To are the token sender and recipient, which can differ from the transaction sender.

Use Is mint or Is burn to distinguish creation or destruction of tokens. To match transfers in either direction for a wallet, join From is wallet and To is wallet with OR.

Trigger Filters: AND and OR Conditions
Filters
Edit the conditions to explore the controls. Event samples stay fixed.
Event shape
from_address
0x1111111111111111111111111111111111111111
to_address
0x2222222222222222222222222222222222222222
value_decimal
1250
This transfer matches the wallet and the minimum amount.
Example. From OR To matches either side of the transfer. AND Value then applies the minimum amount to both alternatives.Changes stay in this example. Nothing is saved or sent.

Use the event

Useful fields include token_symbol, value_decimal, from_address, to_address, usd_value, and explorer_tx_url. Copy the exact paths from an example to avoid guessing names.

For high-volume activity, Batch per block can group matching transfers from one chain and block into a single run. Review the changed event shape before enabling it.

Transfer Event Fields and Message Template
Event shape
token_symbol
USDC
value_decimal
125000
from_address
0x1111111111111111111111111111111111111111
Email · Body
Rendered
125000 USDC moved
Example. Copy the exact field path for your message. Select Batch per block only when you want the grouped event shape.Changes stay in this example. Nothing is saved or sent.