Stock Index API
Stock Index is a tool for retrieving current and historical stock market index values. It supports the S&P 500, Dow Jones, Nasdaq Composite, VIX, Nikkei 225, and more. Optionally retrieve historical data with a date range.
Live Test API
Try out the Stock Index with a live request and see the response in real-time.
API Request
API Response
1234567891011{ "status": "ok", "error": null, "data": { "index": "sp500", "name": "S&P 500", "value": 6882.72, "date": "2026-02-04", "lastUpdated": 1738800000 } }
Multiple Access Methods
REST API with multiple response formats, GraphQL, and MCP for AI agents
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JavaScript Object Notation
XML
Extensible Markup Language
YAML
Human-readable data format
CSV
Comma-separated values
GraphQL
Query language for APIs
MCP
AI agent integration
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Frequently Asked Questions
Get answers to common questions about the Stock Index API
What does the Stock Index API do?
Stock Index is a tool for retrieving current and historical stock market index values. It supports the S&P 500, Dow Jones, Nasdaq Composite, VIX, Nikkei 225, and more. Optionally retrieve historical data with a date range. The API returns structured data in JSON, XML, or YAML format, making it easy to integrate into any application or workflow.
How fast is the Stock Index API?
The Stock Index API has an average response time of 348ms, with a median (p50) of 329ms and 99th percentile of 473ms. Our infrastructure maintains 99.9% uptime with servers distributed globally for low latency.
How much does the Stock Index API cost?
Each call to the Stock Index API uses 1 credit. The free tier includes 100 credits per month. Paid plans start at $29.99/month with higher limits, and enterprise plans offer custom pricing with priority support.
How do I authenticate Stock Index API requests?
Include your API key in the request header as X-API-Key: your_key_here. All requests are made over HTTPS for security. You can get your API key by signing up for a free account.
What HTTP methods does Stock Index support?
The Stock Index API supports GET requests. Simply pass your parameters as query strings in the URL. Check our documentation for detailed parameter specifications.
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