Introducing Parqet’s Identifier Mapping API: Connect ISINs, Tickers, WKNs, and More

Financial instruments like stocks, ETFs, and funds are identified by multiple codes, depending on the region and data provider. A US-based vendor might use tickers, while a Swiss vendor relies on ISINs and a German provider prefers WKNs. This inconsistency makes it difficult for fintechs to integrate data from multiple sources.

Parqet’s Identifier Mapping API solves this problem by allowing you to map any identifier to all available ones—ensuring seamless interoperability between global data vendors.

The Challenge: Inconsistent Financial Identifiers

Every financial instrument is referenced differently depending on the country and data provider. Some of the most common identifiers include:

• ISIN (International Securities Identification Number) – Used globally.
• Ticker Symbols – Common in the US and stock exchanges worldwide.
• WKN (Wertpapierkennnummer) – Primarily used in Germany.
• CUSIP (Committee on Uniform Securities Identification Procedures) – Common in North America.

Without a universal mapping system, fintechs must manually track and convert these identifiers when working with multiple vendors, leading to inefficiencies and errors.

The Solution: Parqet’s Identifier Mapping API

Our new Identifier Mapping API provides a simple, scalable way to match financial identifiers. Query the API with any identifier, and it will return all known identifiers for the asset.

Example Request

To fetch all available identifiers for Apple Inc., you can use its ticker symbol:

GET https://assets.parqet.com/identifiers/symbol/AAPL

Example Response

{
  "name": "Apple",
  "isin": "US0378331005",
  "wkn": "865985",
  "symbols": [
    {
      "nasdaq": "AAPL",
      "frankfurt": "APC.F",
      "xetra": "APC.DE",
      "london": "0R2V.L"
    }
  ]
}

Why Fintechs Need Identifier Mapping

1. Seamless Vendor Integration – Easily connect different data providers, regardless of their identifier system.
2. Reduce Manual Work – No more maintaining custom mapping tables for securities.
3. Improve Data Accuracy – Ensure assets are correctly matched across multiple APIs.
4. Expand Global Reach – Work with financial data from different markets without conversion issues.
5. Future-Proof Your Platform – As new identifiers emerge, they are automatically mapped within the API.

How to Get Started

Integrating Parqet’s Identifier Mapping API is simple.

• Explore the API documentation: Parqet API Reference
• Get an API key: Request Access

With Parqet’s Identifier Mapping API, fintechs and banks can eliminate identifier mismatches and streamline their global financial data operations. Let us know how we can help your team integrate it today!