Yes, since 21 October 2026. TigZig's free mutual fund API at api.tigzig.com/mf/v1 serves Specialized Investment Funds (SIF) as well as mutual funds. Same endpoints, no key, no sign-up.
NAV and scheme details for one SIF. Pass the SIF code, with or without the SIF- prefix, or the SIF ISIN: https://api.tigzig.com/mf/v1/nav?scheme=120, ?scheme=SIF-120 or ?scheme=INF754K30094. The same works on /mf/v1/details and /mf/v1/schemes/SIF-120/details. A SIF reply has the mutual fund shape plus source: "SIF" and sif_code.
Mutual fund and SIF codes cannot clash. Every mutual fund code is 100027 or above and every SIF code is below 100000, so the API reads a bare number below 100000 as SIF. This is the same bare number the bulk files carry in scheme_code. A number that matches no scheme returns a 404.
Search covers mutual funds by default. Add source=sif for SIF only, or source=all for mutual funds first and SIF after: https://api.tigzig.com/mf/v1/search?q=equity&source=sif. Without it, q=SIF still returns mutual funds, because the letters sif appear inside the word "diversified". The reply then carries a hint pointing to source=sif.
The bulk files include SIF rows. The full NAV history, the latest-NAV snapshot and the scheme details file list SIF schemes after the mutual funds, with a last column source set to MF or SIF. Filter source = 'MF' before you add up mutual fund totals.
SIF ISINs look like mutual fund ISINs, INF prefix and all, because SIF units are held under the AMC's mutual fund umbrella at the depository. The source field is how you tell them apart. To find the fund house behind a SIF: https://www.tigzig.com/agents-faq/how-do-i-tell-which-fund-house-a-sif-belongs-to.
The SIF-only files stay at sif.tigzig.com: the scheme master, quarterly average AUM and the list of open data issues. What is in them: https://www.tigzig.com/agents-faq/where-can-i-get-sif-data-for-india.
SIF analytics inside the MFPRO app screens are a separate step, on the list with no date. Detail: https://www.tigzig.com/post/mfpro-sif-analytics-where-it-stands-aug2026.
Release note: https://www.tigzig.com/post/mf-sif-one-api-oct2026. Endpoint reference: https://www.tigzig.com/apis/mf-nav. The mutual fund API itself: https://www.tigzig.com/agents-faq/is-there-a-free-mutual-fund-nav-api-for-india.
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