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Energy API and Blockchain: Enabling Secure and Transparent Energy Transactions for Utilities

Energy API and Blockchain: Enabling Secure and Transparent Energy Transactions for Utilities

Introduction

The energy sector is undergoing a significant transformation, driven by the need for transparency, efficiency, and sustainability. As energy markets become more complex, developers and data engineers face the challenge of accessing reliable market data without the hassle of scraping government portals or dealing with incompatible formats. This is where Energy API comes into play, providing a unified REST API that aggregates wholesale energy market data from trusted sources.

In this blog post, we will explore how the combination of Energy API and blockchain technology can enable secure and transparent energy transactions for utilities. We will delve into the features of Energy API, its core endpoints, and real-world use cases that demonstrate its value. By the end of this post, you will understand how to leverage Energy API to streamline your energy data needs and enhance your applications.

Why Energy API

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

  • Unified Data Access: Energy API normalizes data from multiple sources such as OMIE, ENTSO-E, and EIA into a single JSON interface. This eliminates the need for developers to manage different formats, schedules, and naming conventions, allowing them to focus on building applications rather than data wrangling.
  • 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 comprehensive coverage simplifies the development process and enhances the functionality of applications.
  • Rapid Development: Energy API offers 16 endpoints that cover various aspects of energy data, including spot prices, historical series, and forecasts. The consistent JSON schema across all commodities means that developers can ship features in hours, not weeks, significantly reducing time-to-market.
  • Trusted Data Providers: By aggregating data from reputable sources, Energy API ensures the reliability and accuracy of the information provided. This trust is crucial for developers and businesses that rely on precise data for decision-making.

Quick Start

Getting started with Energy API is straightforward. The base URL for accessing the API is:

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

To make your first request, you will need to include your API key as a query parameter. Here’s an example of how to retrieve the latest prices for Brent Crude and TTF Gas:

curl -G https://energy-api.com/api/v1/latest \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--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
},
"dates": {
"BRENT_CRUDE": "2026-06-11",
"TTF_GAS": "2026-06-11"
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR"
}
}

In this response, the key fields are:

  • success: Indicates whether the request was successful.
  • date: The date of the data retrieved.
  • base: The base currency for the rates.
  • rates: An object containing the latest prices for the requested symbols.
  • currencies: The currency in which each rate is expressed.

Core Endpoints

Energy API provides a variety of endpoints to access different types of energy data. Here are four key endpoints relevant to our discussion:

1. GET /latest

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

  • Key Params: symbols (required), base (optional), category (optional).
  • cURL Snippet:
    • 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"
  • 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"
}
}

    This response provides the latest prices for the specified symbols, along with their respective currencies.

    2. GET /historical

    This endpoint allows you to retrieve prices for all symbols on a specific past date.

    • Key Params: date (YYYY-MM-DD, required), symbols (required), base (optional).
    • cURL Snippet:
      • 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"
    • 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 response provides the historical prices for the specified date, allowing for trend analysis and reporting.

      3. GET /timeseries

      This endpoint retrieves historical series between two dates, ideal for charting and trend analysis.

      • Key Params: start (required), end (required), symbols (required), base (optional).
      • cURL Snippet:
        • 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"
      • 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 response provides a time series of prices for the specified symbols, allowing developers to visualize trends over time.

        4. GET /fluctuation

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

        • Key Params: start (required), end (required), symbols (required), base (optional).
        • cURL Snippet:
          • 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" \
--data-urlencode "api_key=YOUR_API_KEY"
        • JSON Response:
          • {
"success": true,
"fluctuation": {
"BRENT_CRUDE": {
"start_value": 76.30,
"end_value": 75.90,
"change": -0.40,
"change_pct": -0.52
}
}
}

          This response provides insights into price fluctuations, which can be critical for trading strategies and risk management.

          Real-World Use Cases

          Energy API can be leveraged in various applications to solve real-world problems. Here are three concrete examples:

          • Price Alert System: Developers can build a price alert system that notifies users when energy prices reach a certain threshold. By using the /latest endpoint, the application can continuously monitor prices and send alerts via email or SMS when conditions are met.
          • ESG Dashboard: Companies focused on sustainability can create an ESG dashboard that visualizes carbon intensity and emissions data. By utilizing the /carbon-intensity and /emissions/latest endpoints, developers can provide insights into their carbon footprint and track progress towards sustainability goals.
          • Cost Calculator: A cost calculator can help businesses estimate their monthly energy expenses based on current market prices. By using the /cost-estimate endpoint, developers can provide users with a simple interface to input their energy consumption and receive an estimated cost based on the latest prices.

          FAQ

          How often does the TTF gas price update?

          The TTF gas price updates daily, reflecting the most recent market data available from the EEX. This ensures that users have access to the latest pricing information for their trading and analysis needs.

          Can I get historical energy prices going back 5 years?

          Yes, Energy API allows you to retrieve historical prices for various symbols. However, the availability of historical data may vary by symbol, so it's essential to check the specific endpoint documentation for details on data retention.

          Does the API support multiple currencies?

          Yes, Energy API supports multiple currencies. When making requests, you can specify the base currency, and the API will return prices in the requested currency, making it easier for developers to work with international data.

          Conclusion

          In conclusion, the combination of Energy API and blockchain technology presents a powerful solution for enabling secure and transparent energy transactions. By providing a unified interface for accessing reliable market data, Energy API empowers developers to build innovative applications that address the challenges of the energy sector.

          Whether you are a data engineer, energy trader, or part of an ESG product team, leveraging Energy API can significantly reduce the time and effort required to access and analyze energy data. With its comprehensive coverage, rapid development capabilities, and trusted data sources, Energy API is the fastest path from zero to production energy data.

          Ready to get started? Try Energy API for free and unlock the potential of energy data for your applications today!

Keywords
energy API blockchain technology secure energy transactions transparent energy markets utilities data integration

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