YAIL

Yet Another Indexer Library. A blockchain indexer with Ponder's developer experience, Envio HyperSync as the primary data source, and ClickHouse as the storage.

path	what
packages/yail	the library: config, schema DSL, sources, runtime, CLI, testing helpers
examples/quickstart	five-minute try-out: one contract, one table, public RPC, no keys
examples/wallet-ledger	multi-chain wallet ledger (Base, Polygon, Arbitrum, Bitcoin), the indexer behind the patrimony chart project

pnpm install
pnpm -r build           # library -> packages/yail/dist
pnpm -r test            # needs Docker (ClickHouse testcontainer) or YAIL_TEST_CLICKHOUSE_URL

Tests replay recorded real chain data (packages/yail/test/fixtures) and assert against on-chain ground truth captured at record time. Refresh fixtures with pnpm tsx packages/yail/scripts/record-fixtures.ts (public RPCs, no keys needed).