Automate actions
from onchain events.
Watch onchain activity in real time. When something matches your rules, send an alert, trigger a webhook, run your code or hand it to an AI agent.
EthereumBaseArbitrumOptimismBNB ChainUnichainRobinhood Chain
From onchain event to action.
Think Zapier, built for onchain events.
Choose what to watch, process it with rules, code or AI, then trigger actions in the tools your team already uses.
- ERC-20 Transfer
- Uniswap swaps
- Aave Liquidation
- Transaction in Contract
- Token price
- Gas price
- filter
- conditions
- ai agent
- transform
- Slack
- Webhook
- Linear
- Google Sheets
- Google Drive
- HubSpot
- Gmail
- Salesforce
- X
- Notion
- Airtable
- Zapier
- Telegram
- + your own code
- Agentic actions
See a flow in action.
A matching onchain event passes through your rules, gets transformed or interpreted via agentic actions, and reaches your team immediately.
- tokenUSDC
- from0x4e83…9c02
- to0xb1d7…07aa
- value_decimal2,500,000
{ usd: 2500000, tier: 'whale' }
Returned in 4ms
2,500,000 USDC left the treasury
Sender linked, destination named
Skip the monitoring infrastructure.
No indexer. No polling loop. No bot to maintain.
- RPC / provider
- Indexing
- Polling
- Decoding
- Filtering
- Bot / webhook
- Monitoring
- Custom integration
- Onchain event
- Tailflow
- Action
Build, test and launch an onchain workflow in minutes.
Choose what to watch, add your rules and actions, then test the workflow against live chain data before turning it on.
Add conditions, transform data with code, or use AI agents when you need more control.
- tokenstring
- fromaddress
- toaddress
- valueuint256
- value_decimaldecimal
- block_numberuint64
Test it before you turn it on.
Run your workflow against recent onchain activity and see exactly what it will do before going live.
What can you automate?
From treasury monitoring to trading alerts, build workflows around the onchain activity that matters to you.
Alert your team when treasury funds move
When a large stablecoin transfer leaves your treasury, Tailflow posts the amount, sender and destination to Slack.
Get liquidation alerts in real time
When an Aave liquidation happens, Tailflow sends the affected wallet, collateral and amount to your team.
Use AI to explain large swaps
When a large swap happens, an AI agent analyzes the transaction and gives your team the context behind the numbers.
Call a webhook when price crosses a threshold
When a token crosses your configured price threshold, Tailflow calls your webhook with the price and direction.
Trigger actions when gas spikes
When gas rises above your threshold, Tailflow triggers your configured action automatically.
Stream contract activity into Google Sheets
When a transaction touches your contract, Tailflow appends structured event data to Google Sheets.
Post large buys to X automatically
When a buy exceeds your configured size, Tailflow automatically posts the transaction to X.
Announce NFT sales in Telegram
When an NFT in a collection you follow sells, Tailflow posts the sale and new owner to Telegram.
Create Linear issues for flagged wallets
When a watched wallet triggers your rules, Tailflow creates a Linear issue with the wallet, amount and transaction.
Start with one of these, then customize every step.
One workflow. Seven chains.
Build once and run the same flow across Ethereum, Base, Arbitrum, OP Mainnet, BNB Chain, Unichain and Robinhood Chain.
- Ethereum
- Base
- Arbitrum
- OP Mainnet
- BNB Chain
- Unichain
- Robinhood Chain
- More to come
Start reacting to the chain.
Early access is open. Put your address in and you will be among the first to build a flow that watches the chain and acts on it.
- Free while it is in early access
- One email when it opens — nothing else
- No card, no sales call