Documentation Index
Fetch the complete documentation index at: https://docs.extractor.live/llms.txt
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Overview
The Transfer Monitor processes every incoming transaction in real time, inspects its event logs for ERC-20 Transfer events, and fires an alert whenever a transfer involving a monitored address exceeds the configured threshold.
A monitored address is matched against three roles in each Transfer event:
- Token contract — the address that emitted the Transfer event
- Sender — the
from field of the Transfer
- Recipient — the
to field of the Transfer
An alert is emitted if the raw transfer value is greater than or equal to the configured threshold.
Threshold
The minimum transfer amount that triggers an alert. Specified as a raw integer — i.e. the on-chain value without decimal adjustment.
| Field | Type | Required |
|---|
threshold | float | Yes |
1000000000 (1000 × 10⁶).
How to define a threshold: Specify the transfer amount that will trigger an alert in integer format, for example 1000000.
Monitored Address Matching
The detector checks each Transfer event against every configured monitored address. A match is registered if the monitored address appears in any of the following positions:
| Position | Description |
|---|
| Token contract | The address that emitted the Transfer log |
| From | The sender of the transfer |
| To | The recipient of the transfer |
Severity
Controls the severity level of the alert when the threshold is exceeded.
| Value | Behaviour |
|---|
| (not set) | Defaults to Low (0.3) |
| Custom value | Applied directly to the alert |
| Field | Description |
|---|
tx_hash | Hash of the transaction containing the Transfer |
tx_from | Sender address of the outer transaction |
tx_to | Recipient address of the outer transaction |
monitored_contract | The configured monitored address that triggered the match |
sender | The from address in the Transfer event |
recipient | The to address in the Transfer event |
value | Raw transfer amount (on-chain integer, not adjusted for decimals) |
token | Address of the ERC-20 token contract |
symbol | Token symbol resolved on-chain (falls back to token address if unavailable) |
threshold | The configured threshold value |
Alert Types
| Event Type | Trigger |
|---|
transfer_amount_threshold_exceed | Transfer value ≥ threshold for a monitored address |