# EIC Energy Identification Code Validator (`caulleonard/eic-validator`) Actor

Validate 16-character EIC codes (ENTSO-E / ENTSOG, used by EPIAS) via the official check-character algorithm; decode issuing office and object type.

- **URL**: https://apify.com/caulleonard/eic-validator.md
- **Developed by:** [Fatih Şahinbaş](https://apify.com/caulleonard) (community)
- **Categories:** Developer tools, Other
- **Stats:** 1 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $1.00 / 1,000 api calls

This Actor is paid per event and usage. You are charged both the fixed price for specific events and for Apify platform usage.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

## EIC (Energy Identification Code) Validator

Validate **16-character EIC codes** — the **ENTSO-E / ENTSOG** identifiers used across European electricity and gas markets, and by **EPİAŞ** in Turkey — using the official **check-character algorithm**. Also decodes the **issuing office** and **object type**. Runs as a fast **Standby API**. No login, no personal data.

### Endpoint

```
GET /validate?eic=<code>
```

Input is uppercased and whitespace is stripped automatically. Hyphens are meaningful and preserved.

#### Example

```
GET /validate?eic=10YTR-TEIAS----W
```

```json
{
  "inputRaw": "10YTR-TEIAS----W",
  "normalized": "10YTR-TEIAS----W",
  "valid": true,
  "length": 16,
  "lioCode": "10",
  "objectType": "Y",
  "objectTypeName": "Area / domain",
  "checkCharGiven": "W",
  "checkCharExpected": "W",
  "errors": []
}
```

An invalid code returns `"valid": false` with a reason in `errors`, for example a check-character mismatch, a wrong length, or an illegal character.

### What it checks

- **Length** — exactly 16 characters.
- **Character set** — only `A–Z`, `0–9` and `-` are permitted.
- **Check character** — the ENTSO-E weighted mod-37 check character over the first 15 characters. Detects every single-character error.

### EIC structure

| Part | Position | Meaning |
|------|----------|---------|
| Issuing office (LIO) | 1–2 | Local Issuing Office assigned by ENTSO-E |
| Object type | 3 | See table below |
| Identifier | 4–15 | Allocated by the issuing office |
| Check character | 16 | Validates the whole code |

#### Object types

| Letter | Meaning |
|--------|---------|
| `X` | Party (market participant) |
| `Y` | Area / domain |
| `Z` | Measurement point |
| `W` | Resource object |
| `T` | Tie-line |
| `V` | Location |
| `A` | Substation |

### Use cases

- Validate market participant / balancing party codes before submitting energy-market messages.
- Clean and verify EIC fields in ETRM, settlement, or nomination data.
- Check codes in EPİAŞ / ENTSO-E integrations and data pipelines.

### Pricing

Pay-per-event: **$0.001 per API call** (`api-call`).

### Related trade & logistics validation APIs

- [IMO Ship Number Validator API](https://apify.com/caulleonard/imo-ship-no-validator)
- [Container Number Validator API (ISO 6346)](https://apify.com/caulleonard/konteyner-no-validator)
- [Turkish GTIP / HS Code Lookup API](https://apify.com/caulleonard/gtip-hs-code-lookup)

### Notes

This Actor performs offline algorithmic validation. A `valid` result means the code is **structurally correct** (well-formed and check-character-consistent); it does **not** confirm that the code is currently registered and active in the ENTSO-E central registry or a local issuing office registry.

# Actor input Schema

## Actor input object example

```json
{}
```

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("caulleonard/eic-validator").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("caulleonard/eic-validator").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call caulleonard/eic-validator --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=caulleonard/eic-validator",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/6CLK3CfHOxIwplSWP/builds/6H944csJ7l2S8YKcW/openapi.json