Margin Trading Facility API

Free, key-less, CORS-enabled JSON API for India's NSE Margin Trading Facility book — fetched directly from NSE's own daily disclosure files. No sign-up, no rate limit enforced (please cache rather than polling faster than every few minutes — NSE itself only republishes once per trading day).

License & attribution (required)

This API is free to use, including commercially, under CC BY 4.0 — provided that anywhere you display or redistribute this data, you credit "Margin Trading Facility" with a visible, clickable link back to https://margintradingfacility.com. A footer line like "MTF data via Margin Trading Facility" linking to this site satisfies that condition.

Endpoints

GET/api/latest

Whole-market NSE MTF book: total outstanding, change vs. ~1 month ago, fresh exposure/liquidation for the latest trading day, plus a recent daily series.

curl https://margintradingfacility.com/api/latest

GET/api/stocks?limit=50

Per-stock MTF book, NSE close price, and 7D/30D change windows for the largest funded stocks. Omit limit to get the default top ~150.

curl "https://margintradingfacility.com/api/stocks?limit=50"

GET/api/stock/{ticker}

Full detail for one stock: current book, rank, 1D/1W/1M/3M/6M change windows, and a ~3-month price-vs-book series. 404 if the ticker isn't currently MTF-funded.

curl https://margintradingfacility.com/api/stock/RELIANCE

GET/api/sectors

MTF book aggregated by sector (manually-classified — NSE's own files don't carry a sector field), with 1D/1W/1M change.

curl https://margintradingfacility.com/api/sectors

GET/api/openapi.json

Machine-readable OpenAPI 3.1 spec for all of the above.

curl https://margintradingfacility.com/api/openapi.json

Conventions

All money is in INR crore (1 crore = 10,000,000) unless stated otherwise.
"7D"/"30D" etc. mean N NSE trading sessions, not calendar days.
Every response includes a meta object with the license and attribution text — keep it, or reproduce it, wherever you surface this data.
CORS is enabled on every endpoint (Access-Control-Allow-Origin: *), so you can call this directly from browser JavaScript.
This service keeps no database — everything is recomputed from NSE's own archived files on each request, which only go back roughly a year.