sifting/io
Reference · v1

API documentation.
Built to be run.

Markets in one API: crypto, US equities, forex, commodities, DEX, and on-chain fundamentals. REST and WebSocket coverage of fundamentals, SEC filings, XBRL, historical bars, live ticks, and pool data. Every endpoint has its own page with parameters, request samples, response shapes, and a Try-it runner.

QuickstartGet an API key
Your first call

Verify your key in under a minute

Resolve a ticker through the search endpoint. Once this returns a row, your key is live and every other endpoint will accept it.

request · shell
curl -H "X-API-Key: $KEY" \
  "https://api.sifting.io/v1/fnd/stocks/search?q=apple&limit=5"
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Open endpoint pageFull quickstart, auth, and conventions

Reference by category

11 API groups, 33 endpoints, plus the WebSocket protocol. Each endpoint has its own page.

Discovery
2 endpoints

Resolve a US issuer by ticker or company name and pull its profile, CIK, exchanges, and fiscal year end.

Browse
SEC filings
6 endpoints

Form metadata for every recent SEC filing. List, get, and filter 10-K, 10-Q, 8-K, DEF 14A, SC 13D/G, and earnings releases.

Browse
Filing text & analysis
3 endpoints

Extracted, machine-readable text from 10-K and 10-Q HTML, plus a year-over-year Risk Factors diff.

Browse
Financials (XBRL)
4 endpoints

Standardized XBRL concept data from 10-K and 10-Q filings, single concepts, full bundles, cross-sectional screener, and fundamental ratios.

Browse
Insiders & holdings
2 endpoints

Insider transactions parsed into row-per-transaction shape and 13F-HR institutional positions.

Browse
Economic calendar
1 endpoint

Upcoming US economic events from official agency calendars (CPI, NFP, FOMC, GDP, and 21 more).

Browse
Market hours & calendars
5 endpoints

Reference metadata for 23 global trading venues: weekly schedules, holiday calendars, and open / closed snapshots.

Browse
Historical OHLCV
4 endpoints

Time-bucketed bars across US stocks, forex, crypto, and DEX pools under one shared envelope.

Browse
Live market data
4 endpoints

Last-trade, top-of-book quote, full tick snapshots, and TVL pulls served from our snapshot cache.

Browse
Currency converter
1 endpoint

Convert any amount between forex and crypto at live market rates. One endpoint, both asset classes.

Browse
DEX wallets
1 endpoint

On-chain wallet portfolio queries across major chains.

Browse

Popular endpoints

WebSocket protocolOne connection, every market.
Errors & rate limitsHTTP codes, error envelope, and limit headers.