ETF & Fund Holdings API — full point-in-time constituents

The complete, position-level portfolio of any US ETF or mutual fund, straight from SEC N-PORT filings — every holding, weight, and sector, queryable as-of any report date.

$ GET /api/v1/funds/SPY/holdings?as_of=2021-06-30
Full holdings, not a top-10 snapshot
Point-in-time from SEC N-PORT (2019→present)
Per-holding issuer ticker + sector + country
Sector allocation and style-box on the profile

Point-in-time and survivorship-free, by construction

Free tier to evaluate, then $199/mo Quant. REST API, native MCP server, and bulk Parquet. No terminal seat required.