No, and this is worth understanding rather than retrying. AMFI publishes SIF data on a different portal, and the daily NAV feed behind the mutual fund API carries no SIF schemes at all. So the API is not failing you - those schemes are genuinely not in that dataset.
Why it is not a quick add. SIF is a different regulatory category from a different source, so it needs its own ingestion pipeline with its own validations. The confusing part is that SIF ISINs look exactly like mutual fund ISINs, INF prefix and all, because SIF units sit under the AMC's mutual fund umbrella at the depository. Same identifier format, different category, different feed - which is precisely why a valid-looking SIF ISIN returns not-found against the MF API.
The search trap, because it produces a confident wrong answer. Searching the MF API with q=SIF comes back 200 with about 30 rows that look like matches and are all false. The search does substring matching and the letters sif sit inside "diversified", so what you get is every Diversified Equity fund in the database. Nothing errors. Ignore the whole result set.
Where the data actually is: a separate free, keyless dataset at sif.tigzig.com with the full published NAV history, the scheme master and quarterly AUM, refreshed twice a day.
And SIF analytics inside the MFPRO app? On the list, no date. The honest reasoning: MFPRO has been live a few months and usage has picked up recently, and it is better to let that settle and learn from it before adding a second category. Detail: https://www.tigzig.com/post/mfpro-sif-analytics-where-it-stands-aug2026. The mutual fund NAV API itself: https://www.tigzig.com/agents-faq/is-there-a-free-mutual-fund-nav-api-for-india.
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