Creating Custom Energy Analytics Dashboards: A Developer's Guide with Energy API

Introduction

In the rapidly evolving energy market, access to reliable and timely data is crucial for making informed decisions. Developers, data engineers, energy traders, and sustainability teams often face significant challenges when trying to aggregate and analyze wholesale energy market data. The traditional methods of scraping government portals or stitching together incompatible formats can be time-consuming and error-prone. This is where Energy API comes into play, providing a unified REST API that aggregates data from multiple trusted sources into a single, normalized JSON interface.

This blog post aims to guide developers in creating custom energy analytics dashboards using the Energy API. We will explore the API's features, core endpoints, and practical use cases, enabling you to harness the power of energy market data without the hassle of manual data collection and processing.

Why Energy API

Energy API stands out in the crowded landscape of energy data providers for several reasons:

• Unified Data Source: Instead of dealing with multiple APIs, each with different formats and schedules, Energy API offers a single normalized REST surface. This means developers can save significant time and effort by querying one API for all their energy data needs.
• Comprehensive Coverage: With over 39 symbols across six commodity categories—electricity, natural gas, crude oil, coal, carbon allowances, and grid carbon intensity—developers can access a wide range of market data in one place. This eliminates the need for complex data integration processes.
• Rapid Development: The consistent JSON schema across all commodities allows developers to ship features in hours rather than weeks. This accelerates the development cycle and enables teams to respond quickly to market changes.
• Trusted Data Providers: Energy API aggregates data from reputable sources such as OMIE, ENTSO-E, EIA, and ESIOS, ensuring that users receive accurate and reliable information.

Quick Start

To get started with Energy API, you need to know the base URL and how to make your first request. The base URL for the API is:

https://energy-api.com/api/v1

Authentication is done via the api_key query parameter. Here’s how to make your first request to get the latest prices for a few symbols:

curl -G https://energy-api.com/api/v1/latest \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS,EUA_CO2" \
--data-urlencode "api_key=YOUR_API_KEY"

The expected JSON response will look like this:

{
"success": true,
"date": "2026-06-11",
"base": "MIXED",
"rates": {
"BRENT_CRUDE": 74.82,
"TTF_GAS": 38.15,
"EUA_CO2": 67.40
},
"dates": {
"BRENT_CRUDE": "2026-06-11",
"TTF_GAS": "2026-06-11",
"EUA_CO2": "2026-06-11"
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR",
"EUA_CO2": "EUR"
}
}

In this response, the success field indicates whether the request was successful, while the rates object contains the latest prices for the requested symbols. The currencies object specifies the currency for each rate.

Core Endpoints

Energy API provides a variety of endpoints that cater to different data needs. Here are four key endpoints relevant to creating energy analytics dashboards:

1. GET /latest

This endpoint retrieves the most recent price for one or more symbols.

Key Params: symbols (required), base (optional), category (optional)

curl -G https://energy-api.com/api/v1/latest \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS,EUA_CO2" \
--data-urlencode "api_key=YOUR_API_KEY"

Sample JSON Response:

{
"success": true,
"date": "2026-06-11",
"base": "MIXED",
"rates": {
"BRENT_CRUDE": 74.82,
"TTF_GAS": 38.15,
"EUA_CO2": 67.40
},
"dates": {
"BRENT_CRUDE": "2026-06-11",
"TTF_GAS": "2026-06-11",
"EUA_CO2": "2026-06-11"
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR",
"EUA_CO2": "EUR"
}
}

The rates object provides the latest prices for the requested symbols, making it easy to display current market conditions on your dashboard.

2. GET /historical

This endpoint allows you to retrieve prices for all symbols on a specific past date. If the date falls on a non-publishing day, it returns the most recent value before it.

Key Params: date (YYYY-MM-DD, required), symbols (required), base (optional)

curl -G https://energy-api.com/api/v1/historical \
--data-urlencode "date=2025-09-15" \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--data-urlencode "api_key=YOUR_API_KEY"

Sample JSON Response:

{
"success": true,
"date": "2025-09-15",
"base": "MIXED",
"rates": {
"BRENT_CRUDE": 71.45,
"TTF_GAS": 36.20
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR"
}
}

This endpoint is particularly useful for historical analysis and reporting, allowing developers to visualize trends over time.

3. GET /timeseries

The timeseries endpoint provides historical series between two dates, making it ideal for charting and trend analysis.

Key Params: start (required), end (required), symbols (required), base (optional)

curl -G https://energy-api.com/api/v1/timeseries \
--data-urlencode "start=2025-01-01" \
--data-urlencode "end=2025-03-31" \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--data-urlencode "api_key=YOUR_API_KEY"

Sample JSON Response:

{
"success": true,
"base": "MIXED",
"start_date": "2025-01-01",
"end_date": "2025-03-31",
"rates": {
"BRENT_CRUDE": {
"2025-01-02": 76.30,
"2025-01-03": 75.90
},
"TTF_GAS": {
"2025-01-02": 46.80,
"2025-01-03": 47.10
}
},
"frequencies": {
"BRENT_CRUDE": "daily",
"TTF_GAS": "daily"
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR"
}
}

This endpoint allows developers to create detailed visualizations of price movements over time, enhancing the analytical capabilities of their dashboards.

4. GET /fluctuation

This endpoint provides start and end values, absolute change, and percentage change over a specified period.

Key Params: start (required), end (required), symbols (required), base (optional)

curl -G https://energy-api.com/api/v1/fluctuation \
--data-urlencode "start=2025-01-01" \
--data-urlencode "end=2025-01-31" \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--data-urlencode "api_key=YOUR_API_KEY"

Sample JSON Response:

{
"success": true,
"fluctuations": {
"BRENT_CRUDE": {
"start_value": 76.30,
"end_value": 75.90,
"change": -0.40,
"change_pct": -0.52
},
"TTF_GAS": {
"start_value": 46.80,
"end_value": 47.10,
"change": 0.30,
"change_pct": 0.64
}
}
}

This endpoint is valuable for traders and analysts who need to assess market volatility and make informed trading decisions based on price fluctuations.

Real-World Use Cases

Here are three concrete examples of how developers can leverage Energy API to build powerful applications:

1. Price Alert System

Developers can create a price alert system that notifies users when a specific commodity price crosses a predefined threshold. By using the /latest endpoint, the application can continuously monitor prices and send alerts via email or SMS when significant changes occur.

2. ESG Dashboard

Energy API can be used to build an Environmental, Social, and Governance (ESG) dashboard that tracks carbon intensity and emissions data. By utilizing the /carbon-intensity and /emissions/latest endpoints, developers can provide real-time insights into a company's carbon footprint and compliance with sustainability goals.

3. Cost Calculator

A cost calculator can be developed to estimate monthly wholesale electricity costs based on the latest prices and expected consumption. By using the /cost-estimate endpoint, developers can provide users with accurate cost projections, helping them make informed decisions about energy procurement.

FAQ

How often does the TTF gas price update?

The TTF gas price updates daily, reflecting the most recent market conditions. Developers can use the /latest endpoint to retrieve the most current price at any time.

Can I get historical energy prices going back 5 years?

Yes, Energy API provides historical data for various symbols. Developers can use the /historical and /timeseries endpoints to access historical prices, allowing for in-depth analysis and reporting.

Does the API support multiple currencies?

Yes, Energy API supports multiple currencies. Each endpoint allows developers to specify a base currency, and the response will include the relevant currency information for each symbol.

Conclusion

Creating custom energy analytics dashboards has never been easier, thanks to the powerful capabilities of Energy API. By leveraging its unified data source, comprehensive coverage, and rapid development features, developers can build robust applications that provide valuable insights into the energy market.

Whether you're building a price alert system, an ESG dashboard, or a cost calculator, Energy API offers the tools you need to succeed. Start exploring the API today and unlock the potential of energy market data for your projects. Try Energy API for free and see how it can transform your energy analytics capabilities.