Tamer from SDF and Heymanth from Goldsky demonstrate building data indexers on Stellar to track asset movements and circulating supply. They present two approaches: the open-source Stellar Composable Data Platform for custom indexing, and Goldsky Mirror for managed, simplified data pipelines.
This presentation covers building asset indexers on Stellar with two complementary approaches. Tamer from the SDF platform team explains how to build a custom indexer from scratch using the Stellar Composable Data Platform, including Galaxy for ledger exports, the Token Transfer Processor library for parsing events, and tracking asset movements and circulating supply. He details how Protocol 23 enables unified event monitoring across Stellar Classic and smart contracts. Heymanth from Goldsky then presents an alternative: Goldsky Mirror, a managed commercial product that abstracts away infrastructure complexity. Mirror handles data quality checks, supports multiple output destinations (S3, Postgres, ClickHouse, Kafka, webhooks), and delivers sub-4-second latency from on-chain events to databases. He demonstrates building a complete indexer in under 60 seconds through a simple three-step UI flow.
