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Barchart OnDemand API guide

Barchart is a long-standing data vendor with especially deep futures and commodities coverage, packaged as OnDemand web services.

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Quick answer

Barchart OnDemand is a cross-asset market data API covering stocks, indices, ETFs, mutual funds, futures, FX and crypto, with tick, minute and daily history in JSON, XML or CSV over REST, SOAP or WebSocket. Pricing is custom, and real-time exchange fees can exceed the API platform fee.

Barchart OnDemand API at a glance

Pricing
Custom; exchange fees extra
Availability
Worldwide
Paper trading
Not applicable (data only)
Integration type
REST + API key
In AlgoGP
Design and backtest in AlgoGP, connect the exported code
Endpoints
getQuote, getHistory, getFuturesOptions, …
Formats
JSON, XML, CSV over REST/SOAP; WebSocket streaming
History
Tick, minute and daily
Pricing
Custom; exchange surcharges extra

Using getHistory

getHistory.json?apikey=…&symbol=ESZ25&type=daily&startDate=20240101 returns OHLCV rows; type can be ticks, minutes, nearbyMinutes, daily and more. Futures use Barchart root + month code + year.

Build a Barchart OnDemand strategy with AlgoGP

AlgoGP does not connect to Barchart OnDemand natively yet. Barchart OnDemand uses plain HTTPS with an API key, so it is a good candidate for a native adapter; it is not built in yet.

  1. 1

    Design and backtest in AlgoGP

    Describe the strategy to the copilot and backtest it on years of normalized history. The result does not depend on any vendor.

  2. 2

    Export the Python project

    Every project exports strategy.py, market_data.py, brokers.py and live.py. The strategy only sees bars, cash, positions and orders, never a vendor’s wire format.

  3. 3

    Plug in Barchart OnDemand

    Implement the four adapter methods (account, positions, submit_market_order and a candle fetcher) with Barchart OnDemand’s SDK, or keep a built-in platform for paper trading and add Barchart OnDemand when you go live.

Built-in data sources for the same markets: Alpaca, Binance, Coinbase Exchange, Yahoo Finance.

Barchart OnDemand API: frequently asked questions

Is the Barchart API free?

Barchart offers trial keys; production access is priced per use case, with exchange fees on real-time data.

Design and backtest your Barchart OnDemand strategy first

AlgoGP turns an idea into Python and tests it on years of history before you connect it to Barchart OnDemand. The exported code keeps the broker behind four small adapter methods.

  • AI copilot writes and revises the rules
  • Backtests with realistic costs
  • Exported Python ready to wire to Barchart OnDemand
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Barchart OnDemand alternatives

Independent guide. AlgoGP is not affiliated with Barchart OnDemand. Limits, prices and availability change; confirm them in the official documentation. Nothing here is investment advice.