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FCS API

FCS API (fcsapi.com) is a financial market data provider, founded in 2019, offering real-time and historical data for Forex, Cryptocurrency, Stocks, Indices, Commodities and Funds through a JSON REST API and a real-time WebSocket API. It also publishes an open-source, lightweight JavaScript charting library.

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For agents: Financial market data provider with REST and WebSocket APIs for forex, crypto, stocks, indices, commodities and funds; also an open-source charting library.

financial market dataforex apicrypto apistock apiwebsocket

Authority
46 reach 5 · trust 5 · quality 21 · freshness 15
Tier
listed
llms.txt
https://fcsapi.com/llms.txt
Sections
5
Links
20
Size
4916 bytes
Popularity rank
#902205
Country
United States
Categories
APIs and SDKs · Data and analytics
For agents
Interface: a documented API or declared MCP endpoint an agent can call
Inferred actions
Read documentation Call an API Search content Download data About these labels
Audience
developers · agents can: read docs, call api, search content, download data · en
First seen
2026-10-19T10:45:18.366Z
Last checked
2026-10-21T20:16:00.541Z
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Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T20:15:59.956Z. Cached copy · Source on fcsapi.com

# FCS API

> FCS API (fcsapi.com) is a financial market data provider, founded in 2019, offering real-time and historical data for Forex, Cryptocurrency, Stocks, Indices, Commodities and Funds through a JSON REST API and a real-time WebSocket API. It also publishes an open-source, lightweight JavaScript charting library.

Key facts for using the API:

- REST base URL: `https://api-v4.fcsapi.com/` — every request is an HTTP GET and needs the `access_key` query parameter (your API key), e.g. `https://api-v4.fcsapi.com/forex/latest?symbol=EUR/USD&access_key=API_KEY`.
- WebSocket URL: `wss://ws-v4.fcsapi.com/ws?access_key=API_KEY` (WebSocket plans use a separate key).
- Every response is JSON with the same envelope: `status` (true/false), `code` (200 on success), `msg`, `response` (the data) and `info` (server time, credits used).
- Historical timeframes: `1m`, `5m`, `15m`, `30m`, `1h`, `4h`, `1D`, `1W`, `1M`. The maximum number of candles per request depends on the plan.
- The free plan includes 500 API calls per month and needs no credit card. Paid plan prices change, so always read the pricing pages below instead of quoting fixed numbers.
- Coverage: 2,000+ forex pairs from 170+ countries, 3,000+ crypto pairs from major exchanges, 125,000+ stocks from 50+ exchanges, major global indices, commodities (gold, silver, oil, natural gas and more) and funds.
- AI training and commercial use of this content are allowed; see the AI training policy link below.

## API Documentation

- [Forex API](https://fcsapi.com/document/forex-api): Currency pairs and commodities. Endpoints: `forex/list`, `forex/latest`, `forex/base_latest`, `forex/cross`, `forex/converter`, `forex/history`, `forex/profile`, `forex/exchanges`, `forex/search`, `forex/advance`, `forex/performance`, `forex/indicators`, `forex/ma_avg`, `forex/pivot_points`, `forex/signals`, `forex/economy_cal`.
- [Crypto API](https://fcsapi.com/document/crypto-api): Cryptocurrency prices from major exchanges. Endpoints: `crypto/list`, `crypto/latest`, `crypto/base_latest`, `crypto/cross`, `crypto/converter`, `crypto/history`, `crypto/profile`, `crypto/coin`, `crypto/fiat`, `crypto/exchanges`, `crypto/search`, `crypto/advance`, `crypto/performance`, `crypto/indicators`, `crypto/ma_avg`, `crypto/pivot_points`.
- [Stock API](https://fcsapi.com/document/stock-api): Global stocks and indices plus company fundamentals. Endpoints: `stock/list`, `stock/latest`, `stock/history`, `stock/profile`, `stock/exchanges`, `stock/search`, `stock/indices`, `stock/indices_latest`, `stock/performance`, `stock/indicators`, `stock/ma_avg`, `stock/pivot_points`, `stock/earnings`, `stock/revenue`, `stock/dividend`, `stock/balance_sheet`, `stock/income_statements`, `stock/cash_flow`, `stock/statistics`, `stock/forecast`, `stock/analytics`.
- [WebSocket API](https://fcsapi.com/document/socket-api): Real-time price streaming for Forex, Crypto, Commodities, Stocks and Indices, including the JavaScript `FCSClient` library, subscribe mess
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