TellTide

Telltide lets developers and users create flexible “meta-events” on top of raw smart-contract events across networks. Instead of processing individual events or running your own indexer, you can subscribe to meaningful, aggregated signals such as: “net withdrawals across three vaults exceed 20% in two hours,” or “a Morpho market has more than 30 large withdrawals within a day.”

These signals are created through a simple API, and once a meta-event is defined, Telltide continuously watches the chain and sends a webhook notification when the condition is met. This helps users and agents detect unusual flows, liquidity risks, or market shifts early—without needing to maintain indexer services

Telltide is built around three main components: an indexer, a worker, and a simple API layer.

The indexer uses the SQD Pipes SDK to pull historical and real-time events from Ethereum and Base, covering Morpho markets, ERC4626 vaults, and ERC20 transfers. All events are normalized and stored in PostgreSQL with the chain and market information attached.

A separate worker service processes user-defined subscriptions every 30 seconds. It interprets each meta-event configuration, calculates rolling aggregates (such as net supply, net borrow, or withdrawal flows), and checks whether the user’s condition is met. If it triggers, it sends a webhook notification with a lightweight payload.

The API exposes endpoints for creating, listing, and managing subscriptions. SQD provided fast historical data and an easy way to run multi-chain indexing, which allowed the project to stay simple while still handling large event volumes.