Developer documentation

From first request
to a useful integration.

Choose what you want to build. Follow a working request pattern, understand its response, then connect it to your app.

Start the quickstart Browse API reference

Local preview: neutral API addresses are awaiting live validation. Examples describe the documented contract; they are not proof of current market coverage or plan access.

01 / Your first result

Three steps. One inspectable quote.

Use cURL, or Python 3 with requests. No frontend framework is required.

Get a server-side key
Sign in to the shared Console and choose available access. Keep credentials out of browser JavaScript.
Account & key setup
Request one symbol
Set the API base and request NASDAQ:AAPL with bearer authentication.
cURL / Python example
Validate the response
Check success, data.data, lp_time and currency before displaying the price.
Read your first result

02 / Build by task

What are you adding next?

Using Node.js? Start here

Read a market quote

Price + currency + observation time

Use an exchange-qualified symbol. Read the nested result and handle missing fields.

Python walkthrough Interface details

Build a watchlist

Up to 10 symbols per batch

Split larger lists and preserve per-symbol failures without discarding valid rows.

Batch walkthrough Interface details

Load historical candles

OHLCV for charts or CSV

Choose a timeframe and candle count. Map max/min to high/low for your chart.

Python CSV export Interface details

Subscribe with WebSocket

Subscription → quote updates

Mint a stream token, subscribe, and distinguish acknowledgements from market updates.

WebSocket walkthrough Interface details

Receive updates with SSE

Server → application events

Parse each message, renew expiring credentials and clean up unused connections.

SSE walkthrough Interface details

Give an AI agent data tools

MCP tool result → grounded answer

Use a separate MCP token and inspect tool success, symbol identity and timestamps.

MCP walkthrough Interface details

03 / Before you display it

A response needs context.

Keep these checks with your data, whether the output is a chart, a report or an AI answer.

Timestamp & freshness guide

01 · Did the operation succeed?: HTTP status and JSON success are separate checks. In a batch, inspect each item.
02 · Is it the right instrument?: Preserve the exchange-qualified symbol and currency. Similar tickers can refer to different listings.
03 · When was it observed?: Quote and candle examples use Unix seconds. Token expiresAt uses milliseconds. Record receive time separately.
04 · Is a value missing?: Keep nulls and empty results distinct from zero. Check session, interval and coverage before retrying.

04 / Keep moving

Find the next answer.

Need another dataset?

Find symbols, screening, company context, news and calendars in the endpoint reference.

Explore endpoints

A request is failing?

Work through credentials, HTTP errors, rate limits, empty results and timeouts.

Troubleshoot a request

Planning an integration?

Browse stocks, crypto, forex, funds and other asset interfaces. Find your market, then check symbols, intervals and plan access.

Markets & exchanges
Estimate usage

Still stuck? Contact support with the endpoint, UTC request time and sanitized error. Remove keys and tokens.

Build your first data connection.

Get your key in the shared Console, then follow the quickstart for your first quote.

Get API Key

Continue to our shared account console.