Stock Market Data
Free tierReal-time quotes and fundamentals for 70+ global exchanges.
About this API
Streaming and REST access to equities, ETFs, indices, and crypto pairs. Includes intraday OHLCV bars from one minute upward, corporate actions, dividends, earnings calendars, and 30 years of adjusted end-of-day history.
Common use cases
Quickstart
Every Zephiel API uses the same base URL, the same key header, and the same error envelope.
curl -X GET "https://zephiel.com/api/v1/market-data/quote" \
-H "X-Zephiel-Key: $ZEPHIEL_API_KEY" \
-H "Accept: application/json"Example response
{
"symbol": "AAPL",
"price": 241.83,
"change": 2.14,
"change_pct": 0.89,
"volume": 48120933,
"market_state": "REGULAR"
}/v1/market-data/quoteReal-time quote for one or more symbols/v1/market-data/barsIntraday and daily OHLCV bars/v1/market-data/fundamentalsStatements, ratios, and metrics/v1/market-data/calendar/earningsUpcoming earnings datesAll endpoints return JSON and accept the X-Zephiel-Key header. Rate limits are enforced per plan and reported in X-RateLimit-Remaining.
Plans can be changed or cancelled at any time. Overage is charged per 1,000 requests rather than hard-blocking your traffic.
Free
100 requests/mo
5 req/min
Free
- JSON output format — included
- HTTPS encryption — included
- API key authentication — included
- Standard endpoints — included
- Community support — included
- CSV output format — not included
- Email support — not included
- Usage analytics and alerts — not included
- 99.9% uptime SLA — not included
- Webhooks — not included
- Priority support — not included
- Custom rate limits — not included
- 99.99% uptime SLA — not included
- Dedicated success manager — not included
- SSO / SAML — not included
- Custom SLA, DPA, and BAA — not included
- Private deployment option — not included
- Volume pricing — not included
Starter
10,000 requests/mo
60 req/min
$35/month
- JSON output format — included
- HTTPS encryption — included
- API key authentication — included
- Standard endpoints — included
- Community support — included
- CSV output format — included
- Email support — included
- Usage analytics and alerts — included
- 99.9% uptime SLA — included
- Webhooks — not included
- Priority support — not included
- Custom rate limits — not included
- 99.99% uptime SLA — not included
- Dedicated success manager — not included
- SSO / SAML — not included
- Custom SLA, DPA, and BAA — not included
- Private deployment option — not included
- Volume pricing — not included
Most popular
Pro
250,000 requests/mo
600 req/min
$140/month
- JSON output format — included
- HTTPS encryption — included
- API key authentication — included
- Standard endpoints — included
- Community support — included
- CSV output format — included
- Email support — included
- Usage analytics and alerts — included
- 99.9% uptime SLA — included
- Webhooks — included
- Priority support — included
- Custom rate limits — included
- 99.99% uptime SLA — included
- Dedicated success manager — not included
- SSO / SAML — not included
- Custom SLA, DPA, and BAA — not included
- Private deployment option — not included
- Volume pricing — not included
Enterprise
Unlimited requests
Custom
$490/month
- JSON output format — included
- HTTPS encryption — included
- API key authentication — included
- Standard endpoints — included
- Community support — included
- CSV output format — included
- Email support — included
- Usage analytics and alerts — included
- 99.9% uptime SLA — included
- Webhooks — included
- Priority support — included
- Custom rate limits — included
- 99.99% uptime SLA — included
- Dedicated success manager — included
- SSO / SAML — included
- Custom SLA, DPA, and BAA — included
- Private deployment option — included
- Volume pricing — included
4.8
12 reviews
Laura Bennett
Director of Engineering
Now handles portfolio analytics too
We adopted Stock Market Data for trading dashboards and ended up using it for portfolio analytics as well. Same key, no new contract, no second integration.
Henrik Solberg
Backend Lead
Support answered properly
Asked Meridian AI about an edge case in Stock Market Data and got an explanation from someone who had clearly read the code, not a link to the FAQ.
Priya Sundaram
Staff Engineer
Quietly reliable
Stock Market Data has not surprised us once in eight months of production traffic. That is the highest compliment I can pay a dependency.
Kwame Boateng
Integrations Lead
One key made the difference
Adding Stock Market Data took ten minutes because the credential already existed. The vendor onboarding we skipped would have taken longer than the integration.
Tunde Alabi
Principal Engineer
Solved Trading dashboards for us
We brought Stock Market Data in for Trading dashboards and it has not needed revisiting since. The response shape matched the documentation on the first call, which is rarer than it should be.
Ibrahim Diallo
Head of Platform
Fast enough to sit in the request path
58ms median is quick enough that we call Stock Market Data synchronously rather than queueing it. That removed a whole background worker from our architecture.
Nadia Haddad
Principal Engineer
Free tier covered the whole prototype
I built the entire backtesting flow against Stock Market Data before anyone had to approve a purchase order. By the time we paid, we already knew it worked.
Diego Navarro
Tech Lead
Replaced a fragile in-house crypto job
We had a script doing financial reporting that broke every few months and only one person understood. Stock Market Data replaced it in an afternoon and nobody maintains it now.
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