Barchart OnDemand Market Data API
Agent-ready OpenAPI document · curated by JenticFinanceBankingapiKey23 EndpointsREST
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For Agents
Pull real-time quotes, historical prices, options chains, fundamentals, and analyst ratings from the Barchart OnDemand market data API. Suitable for agents powering trading dashboards, research tools, and portfolio monitoring.
Use for: Get the latest quote for AAPL with bid, ask, and last trade, Retrieve 5 years of daily closing prices for SPY, Pull the options chain for TSLA expiring next Friday, Look up the analyst rating consensus for MSFT
Not supported: Does not handle order routing, brokerage account management, or trade execution - use for retrieving Barchart market data, fundamentals, and analytics only.
Barchart OnDemand exposes real-time and historical market data across equities, ETFs, options, and cryptocurrencies, including quotes, end-of-day prices, time-series history, options chains, and analyst ratings. Fundamental endpoints cover company profiles, financial highlights, ratios, income statements, balance sheets, and cash flow data, while market endpoints surface leaders, news, dividends, and earnings estimates. Barchart serves its own OpenAPI document from its API host, and that document is canonical. The specification behind this page is a curated Jentic variant of 23 of its operations, shaped for agent use and kept validated.
Install Jentic One Beta
Connect the Barchart OnDemand Market Data API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Barchart OnDemand Market Data API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
1
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fbarchart.com%2Fbarchart" | sh2
Step 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fbarchart.com%2Fbarchart" | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
Capabilities
What an agent can do with Barchart OnDemand Market Data API.
Retrieve real-time and delayed quotes for equities, ETFs, and crypto symbols
Pull historical time-series prices for any supported instrument
Fetch full options chains with expirations, strikes, and Greeks
Look up company profiles, financial highlights, and analyst ratings
Access fundamentals including income statements, balance sheets, and cash flow
Read dividend data, earnings estimates, market leaders, and instrument-level news
Use Cases
Patterns agents use Barchart OnDemand Market Data API for, with concrete tasks.
★ Trading Dashboards and Watchlists
Power trading dashboards and watchlists with real-time quotes, end-of-day prices, and dividend data from Barchart OnDemand. The /getQuote.json and /getQuoteEod.json endpoints handle live and settled prices, while /getHistory.json drives chart back-testing. Suitable for retail brokerage UIs, internal trading desks, and research portals that need a single source for cross-asset price data.
Call GET /getQuote.json with symbols=AAPL,MSFT,GOOGL and return last price, change, and volume for each ticker.
Options Strategy and Risk Tooling
Build options strategy tools and risk dashboards on top of Barchart's options data. The /getEquityOptions.json endpoint exposes full chains with expirations and strikes, supporting use cases from covered-call screening to portfolio Greeks aggregation. Each contract row carries delta, gamma, theta, vega, and a volatility field, so combine it with the quotes and history endpoints for underlying price context.
Call GET /getEquityOptions.json with underlying_symbols=TSLA and optionType=Monthly, then return all calls within 5% of the current spot price.
Fundamentals-Driven Stock Screening
Run fundamentals-driven screens for value or growth strategies using Barchart's financial highlights, ratios, and statement endpoints. /getFinancialHighlights.json, /getFinancialRatios.json, /getIncomeStatements.json, /getBalanceSheets.json, and /getCashFlow.json together provide enough breadth to compute custom screens without a separate fundamentals data vendor. Pair with /getRatings.json for consensus analyst views.
For ticker NVDA call /getFinancialRatios.json and /getIncomeStatements.json, then compute trailing P/E and YoY revenue growth and return both numbers.
AI Agent Market Research Assistant via Jentic
Run an AI assistant that answers ad-hoc market and company research questions by calling Barchart through Jentic. The agent searches Jentic for an intent like 'get a stock quote' or 'pull company financials', loads the right Barchart operation, and executes the call with the apikey held in your Jentic One instance. The agent returns clean numbers and short summaries to the user.
Search Jentic for 'get the latest quote for a ticker', execute /getQuote.json against symbol AAPL, and respond with last price, day change, and volume.
Key Endpoints
23 endpoints — barchart ondemand exposes real-time and historical market data across equities, etfs, options, and cryptocurrencies, including quotes, end-of-day prices, time-series history, options chains, and analyst ratings.
METHOD
PATH
DESCRIPTION
GET
/getQuote.json
Get a real-time or delayed quote
GET
/getHistory.json
Get historical time-series prices
GET
/getEquityOptions.json
Get an equity options chain
GET
/getFinancialRatios.json
Get financial ratios
GET
/getIncomeStatements.json
Get income statement data
GET
/getRatings.json
Get analyst ratings
GET
/getCrypto.json
Get cryptocurrency spot prices
GET
/getQuote.json
Get a real-time or delayed quote
GET
/getHistory.json
Get historical time-series prices
GET
/getEquityOptions.json
Get an equity options chain
GET
/getFinancialRatios.json
Get financial ratios
GET
/getIncomeStatements.json
Get income statement data
GET
/getRatings.json
Get analyst ratings
GET
/getCrypto.json
Get cryptocurrency spot prices
Why Jentic?
What agents get from Jentic-routed access to this vendor.
Setup
Wiring Barchart OnDemand by hand means appending your apikey as a query parameter, learning each getQuote, getHistory, and getFinancialRatios endpoint, and parsing the JSON responses yourself. Through Jentic you install once, import the Barchart OnDemand Market Data API from the API Directory, store the key once, and your agent calls it.
Permission scoping
Barchart carries its symbols and time ranges as query parameters rather than as a resource in the URL path, so scope the agent to the operations it needs, such as getting a quote or pulling history. You choose that operation set, so options, ratings, or crypto lookups are not included unless you add them.
Credential isolation
Your Barchart OnDemand API key is stored once, encrypted, by your own Jentic One instance and injected as the apikey query parameter at execution time. It never enters the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as 'get a stock quote' or 'pull an options chain', and Jentic returns the matching Barchart operation with its input schema, including which symbol and time-range parameters are required, so the agent calls the right endpoint without browsing the reference docs.
Related APIs
Alternatives and complements available in the Jentic catalogue.
FAQs
Specific to using Barchart OnDemand Market Data API through Jentic.
Does Barchart publish an official OpenAPI specification?
Yes. Barchart serves one from its own API host at https://ondemand.websol.barchart.com/openapi.yaml, titled OnDemand APIs, and that document is canonical. It is not linked from the human docs pages, which is why it is easy to miss. The specification behind this page is a curated Jentic variant of the same API: 23 operations covering quotes, history, options, fundamentals, ratings, and crypto, shaped for agent use and kept validated. Barchart's own document is wider at 71 operations, adding futures, grain, weather, and calendar data, so read it when you need the full surface.
What authentication does the Barchart OnDemand API use?
Barchart OnDemand uses an API key passed as the apikey query parameter on every request. When called through Jentic, the key is stored encrypted in your Jentic One instance and injected at execution time so it never enters the agent's context.
Can I get options chains with the Barchart API?
Yes. Call GET /getEquityOptions.json with the underlying symbol and optional expiration filters. The response includes calls and puts with strike, expiration, bid, ask, last, volume, and open interest.
What are the rate limits for the Barchart OnDemand API?
Barchart does not document a request rate limit, and neither its own OpenAPI document nor the specification behind this page declares one, so treat throttling as undefined rather than absent. What Barchart does say is commercial: it prices market data by usage and packages it from small to enterprise. For heavy polling, prefer the settled endpoints /getQuoteEod.json and /getClosePrice.json and cache historical pulls from /getHistory.json locally.
Is there a Barchart MCP server?
You don't need an MCP server to give your agent Barchart OnDemand. Jentic connects it directly from the API Directory: import Barchart, store your apikey once, and your agent can pull quotes, history, options chains, fundamentals, and ratings, with no extra tool definitions loaded into its context.
How do I get a stock quote through Jentic?
Install Jentic One on its own machine, run `jentic register` on the machine your agent runs on, then import the Barchart OnDemand Market Data API from the API Directory and store your apikey once. Your agent searches by intent for 'get the latest stock quote', loads the schema for GET /getQuote.json, and executes it with the symbols parameter. Jentic injects the apikey query parameter and returns the price, change, and volume fields the agent needs.
Does Barchart OnDemand expose cryptocurrency data?
Yes. /getCrypto.json returns spot prices for cryptocurrencies and /getCryptoHistory.json returns historical time-series. Coverage focuses on major coins and the data complements equity quotes when an agent needs cross-asset views.
Can I limit what my agent is allowed to do with the Barchart OnDemand Market Data API?
Yes. Because you run Jentic One yourself, you decide which Barchart operations your agent may call, and your own rules govern access. Barchart passes symbols and time ranges as query parameters rather than in the URL path, so you scope the agent to just the operations it needs, such as GET /getQuote.json for quotes or GET /getHistory.json for historical prices. Options, ratings, and crypto endpoints like /getEquityOptions.json, /getRatings.json, and /getCrypto.json stay out of reach unless you add them, and the encrypted API key is injected at execution time so it never enters the agent's context.
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