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📡 Data & API

Every dataset behind the dashboard is available as free JSON. No key, no signup. Sourced from NSE (daily cash + F&O participant OI) and NSDL (fortnightly FPI sector data).

Downloads

Full history (JSON) Sectors (JSON)

Endpoints

Endpoint	Returns
`GET /api/data`	Latest session — FII/DII cash buy/sell/net plus F&O participant OI, PCR and sentiment score. Evening figures are provisional (custodian-confirmed figures land the next morning).
`GET /api/history`	Last 60 sessions, newest first.
`GET /api/history-full`	Full daily history (compact keys: `d` date, `fb/fs/fn` FII buy/sell/net, `db/ds/dn` DII, plus F&O OI fields, `pcr`, `sentiment_score`).
`GET /api/sectors`	NSDL fortnightly FPI sector allocation — AUM %, fortnight net flow (₹ Cr), 1-year flow, per-fortnight history array.
`GET /api/market`	Live NIFTY 50 & India VIX quote (Yahoo Finance proxy).
`GET /api/nifty-history`	~2 years of NIFTY 50 daily closes (for flow-vs-index overlays).
`GET /api/large-deals`	Today's NSE bulk / block / short-sale deals (when upstream allows).
`GET /api/agents/status`	All analysis agents — streaks, regime, flow strength, divergence, sector rotation.
`GET /api/agents/regime`	Current market regime classification with recommendation.
`GET /api/agents/streaks`	Active FII buy/sell streak, cumulative flow, DII absorption %.
`GET /api/agents/docs`	Self-documenting agent API manifest.

Field reference

Field	Meaning
`fii_net` / `fn`	FII net cash purchase in ₹ Crore (negative = net selling).
`dii_net` / `dn`	DII net cash purchase in ₹ Crore.
`fii_idx_fut_long/short`	FII index-futures open interest, contracts (long-short ratio = long ÷ short).
`pcr`	FII index-option put-call ratio computed on short OI (put short ÷ call short).
`_source`	`fetch-pipeline` = real NSE data. Other values are seeded/estimated rows kept for continuity.

Terms: Data originates from NSE and NSDL public reports, which permit personal, non-commercial use. This API is offered free for research and personal analysis — please don't resell the data, and keep request rates polite (responses are cached server-side). Attribution appreciated: FII & DII Data by Mr. Chartist.

Questions or a dataset you wish existed? Ping @mr_chartist or open an issue on GitHub.