Linking European Central Bank (ECB Data Portal) as a source
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This source is currently in alpha. The interface and available tables may change.
The European Central Bank (ECB Data Portal) connector syncs eur exchange rates, key interest rates, hicp inflation, and more into the PostHog data warehouse, so you can analyze them alongside your product data.
Prerequisites
None. The European Central Bank (ECB Data Portal) API is public, so no account or API key is needed.
Adding a data source
- In PostHog, go to the Sources tab of the data pipeline section.
- Click + New source and click Link next to this source.
- Enter your credentials (see Configuration below) and click Next.
- Select the tables you want to sync, choose a sync method and frequency, then click Import.
Once the syncs are complete, you can start querying this data in PostHog.
Import euro-area statistics from the ECB Data Portal's free, keyless public API: reference exchange rates, key interest rates, and HICP inflation. No API key or account is required.
Sync modes
Each table can be synced in one of several modes, depending on what the source supports:
- Webhook (when available) – the source pushes changes to PostHog in real time. Fastest freshness, lowest ongoing cost, and the only mode that reliably captures updates and deletes.
- Incremental – only new or updated rows are synced on each run, using a cursor field (such as an
updated_attimestamp). Cheaper than a full refresh, but deletes aren't captured. - Append only – new rows are appended using a cursor field; existing rows are never updated. Ideal for immutable, append-only tables like event logs.
- Full refresh – the whole table is reloaded on every sync. Use it when a table has no reliable cursor or when you need deletions reflected.
See sync methods for a full explanation of how each mode works and how to choose between them.
All European Central Bank (ECB Data Portal) tables are full refresh. Each sync replaces the contents of the table.
Configuration
Supported tables
| Table | Description | Sync method | Incremental field | Primary key |
|---|---|---|---|---|
eur_exchange_rates | Daily ECB reference exchange rates for the euro against published currencies. | Incremental, Full refresh | Time period | — |
key_interest_rates | ECB key interest rates (main refinancing, deposit facility, marginal lending), by date of change. | Incremental, Full refresh | Time period | — |
hicp_inflation | Euro area HICP (inflation) overall index, annual rate of change. | Incremental, Full refresh | Time period | — |
Troubleshooting
- If the connection fails with an authorization error, the API key is wrong, expired, or has been revoked. Create a new one, then reconnect the source.
- If a table syncs no rows, the credential may not have access to that data. Check its permissions, then reconnect the source.
If your sync is failing or data looks wrong, see the Data warehouse troubleshooting guide. If that doesn't help, contact support – we're happy to help.