Make your first event useful.
Tailflow connects blockchain activity and price conditions to actions. Choose what to watch, narrow the events, and decide what happens next: send a message, shape the data, or pass it to another application.
Build your first flow →Check availability before relying on an alert
Some sources currently offer previews without automatic execution. Each source guide states its availability. Start with Choose a trigger to compare them.
Start here
Triggers
Choose a trigger
Compare all eight trigger types and their current availability.
Token Transfer (ERC20)
Watch selected tokens and filter transfers by amount, wallet, mint, or burn.
NFT Transfer (ERC721)
Explore NFT transfers, minting, burning, and available sale information.
Transaction in Contract
Watch transactions sent to a contract and inspect their calldata and logs.
Contract event
Watch events emitted by a contract and filter decoded arguments.
Uniswap Swap
Explore swaps across v2, v3, and v4 pools.
Aave Liquidation
Explore recorded liquidations for a wallet.
Token price
Create a threshold alert for one supported token.
Gas price
Watch gas levels on selected chains without repeated alerts at the same level.
Build a flow
Actions
Choose an action
Compare notifications, data shaping, required connections, and availability.
Slack
Send an event-based message to a channel.
Send a text email with event fields and earlier action results.
Webhook
Send flow data to your own application or automation endpoint.
Post to X
Publish text or a reply from your connected X account.
Agent
Turn an event into a short explanation for a later action.
Transform
Reshape data with a short JavaScript script.
Decode
Read contract calldata or event data using an ABI.
NFT metadata
Use the full NFT metadata output: images, animation, traits, collection details, and marketplace links.
Manage and troubleshoot
Test runs, Runs, and Activity
Understand previews, real execution results, and failure investigation.
Connections, settings, and usage
Manage shared service access and understand action credits.
Troubleshooting
Find out why an example, run, or notification is missing.
Limits and availability
Understand volume limits, history, timing, and what an enabled flow guarantees.