Nordigen
Nordigen, now GoCardless Data, is a free open banking API covering 2,000+ banks across Europe and the UK. It offers read-only account data, transaction categorization, merchant recognition, and income…
💬 Verdict
Nordigen is an excellent choice for startups and SMEs developing open banking applications focused on read-only data in Europe and the UK, especially those needing transaction categorization and income verification without upfront costs. However, if you require payment initiation, global coverage, or a fully managed solution with minimal in-house regulatory work, you should look elsewhere. For a free, versatile bank data API, it's an unmatched value proposition.
Nordigen
Free plan available — no credit card required
📊 Pros & Cons
Pros
- 👍 Completely free open banking data API with no monthly subscription or per-bank fees.
- 👍 Broad coverage of 2,000+ banks in Europe and the UK, including many smaller regional banks.
- 👍 Built-in transaction categorization, merchant recognition, and income verification endpoints save development time.
- 👍 Licensed AISP under PSD2, so you get compliant data without having to separately negotiate bank agreements.
- 👍 Backed by GoCardless, which adds financial stability and a clear roadmap for future payment integration.
Cons
- 👎 Read-only API: no payment initiation, or account-to-account transfers.
- 👎 Only covers Europe and the UK; no support for banks in North America, Asia, or elsewhere.
- 👎 Requires you to implement PSD2 consent flows and a data refresh scheduling system; not fully plug-and-play.
- 👎 Transaction categorization can be inconsistent for legacy banks or non-English transaction descriptions.
- 👎 As a free product, there is no formal uptime SLA and you may experience occasional latency or re-consent requirements.
🎯 Use Cases
Free access to multi-bank transaction data and built-in categorization makes it very easy to build a read-only aggregator for European consumers.
Nordigen provides salary income detection, balance history, and transaction streams, which are directly useful for affordability checks and loan verification.
Automated bank feeds for bookkeeping software are a core fit, especially for European SMBs looking to sync transactions into accounting tools without API fees.
With merchant recognition and categorization, you can display spending insights and budgets without having to build data pipelines in-house.
Nordigen only works with European and UK banks, so it cannot serve products that need bank accounts in the US, Asia, or other regions.
🔌 Integrations
🔍 Deep Dive
You must build and maintain the user consent UX, handle re-authorization prompts, and manage data refresh jobs. If you later use GoCardless for payments, that adds transaction fees. Free tier also has no guaranteed uptime SLA.
Moderate—you need to understand Open Banking consent flows, integrate with redirect URLs and webhooks, and set up background data synchronization.
Companies with global bank coverage requirements, or those needing payment initiation alongside account data, and enterprises that require a contractual service-level agreement.
❓ Frequently Asked Questions
Is Nordigen really free to use?
Yes, the PSD2 bank account data API is free to use for all features like transaction access, categorization, and income verification. You only pay if you choose to combine it with GoCardless payment collection services.
Which countries and banks does Nordigen support?
Nordigen covers over 2,000 banks across 31 European countries plus the UK. It does not support banks outside Europe, so it is not a global data aggregator.
Can I initiate payments with Nordigen?
No. Nordigen is a read-only open banking data API, so it only retrieves account information, balances, and transactions. For payments, you would need to use GoCardless or another provider.
How accurate is the transaction categorization?
Nordigen uses machine learning to categorize transactions into groups like groceries, transport, and income. It works well for most European bank feeds, but accuracy can vary with cryptic transaction descriptions and non-English merchants.
What happens now that GoCardless acquired Nordigen?
The product is now called GoCardless Data and remains free for open banking data access. GoCardless plans to integrate it with payment services, but existing API functionality and documentation are still available.
Does Nordigen require my users to go through a complex authentication flow?
Yes, users must authorize access via a bank PSD2 consent flow. Nordigen provides redirect links and webhooks to manage this, but you are responsible for building the consent UX and refreshing data sessions.
