Turn onchain events
into workflows.
Watch transfers, swaps, liquidations, prices and contract activity. Filter what matters, then trigger actions across Slack, webhooks, your own code, AI agents and more.
EthereumBaseArbitrumOP MainnetBNB ChainUnichainRobinhood Chain
From onchain event to action.
Tailflow continuously watches the chain. When an event matches your flow, run conditions, transforms or agents and send the result wherever your team works.
- ERC-20 Transfer
- Uniswap swaps
- Aave Liquidation
- Transaction in Contract
- and more…
- Token price
- Gas price
- filter
- condition
- agent
- transform
- Slack
- Webhook
- Linear
- Google Sheets
- Google Drive
- HubSpot
- Gmail
- Salesforce
- X
- Notion
- Airtable
- Zapier
- Telegram
See a flow in action.
A matching onchain event passes through your rules, gets transformed or interpreted, 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 an onchain workflow in minutes.
Choose an event, filter what matters, add actions, test it against real data, then turn it on. No indexer, polling service or monitoring bot to maintain.
Need more control? Add conditions, transform data with sandboxed JavaScript, or let an AI agent interpret the event before the next action runs.
- tokenstring
- fromaddress
- toaddress
- valueuint256
- value_decimaldecimal
- block_numberuint64
Know before you enable it.
Preview recent matches against live chain data and test the full workflow before switching it on.
What can you automate?
Every one of these is a trigger, a condition and an action — the same three parts, pointed at something different.
Post treasury outflows to Slack
A large stablecoin transfer leaves the treasury and Slack gets the amount, sender and destination.
Get alerted on liquidations
An Aave liquidation sends an email and Slack alert with the affected wallet and collateral.
Explain large swaps with an AI agent
A large pool swap goes through an agent first, so your team gets context instead of raw numbers.
Trigger your endpoint when price moves
A token crosses the threshold you set and your webhook receives the price and direction.
React when gas spikes
Gas crosses your ceiling and Tailflow calls your webhook so your infrastructure can react.
Send contract activity to Sheets
Transactions touching your contract append structured data to a spreadsheet automatically.
Post whale buys on X
A swap above the size you set is posted to your account, so followers see the move as it happens.
Announce NFT sales in Telegram
An ERC-721 transfer in the collection you follow posts to your group with the token and its new owner.
File a Linear issue for flagged wallets
A transfer touching an address you watch opens a ticket with the amount and the transaction attached.
Seven trigger types, every action you connect. These are just where to start.
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.
Join the Tailflow early access and build your first onchain workflow.
No spam. One email when it opens.