Alpha Vantage is an external service that provides an API to download financial and economic data. It includes security prices, macroeconomic data, news, company fundamentals etc.
Users can get a free API key in order to download data.
The standard API usage limit is 5 API requests per minute and 500 API requests per day. A single API request can provide a full time series for a single company. A Premium Membership allows a user to download more data.

Alpha Vantage sample code

The securities purchased by the ECB and Eurosystem central banks under the various large scale asset purchase programmes (PSPP, CSPP) are made available for securities lending since mid-2015.
The aim of the securities lending framework is to support bond and repo market liquidity through various lending arrangements ranging from bilateral lending to lending relying on specialized securities lending agents or on the lending infrastructure of international central securities depositories.
The terms of the lending contracts, i.e. collateral eligibility, pricing, haircut, term and counterparty eligibility; are determined at the individual central bank level to accommodate domestic infrastructures and market practices.

National EU Banks PSPP

National EU Banks CSPP

GC Pooling offers different pre-defined baskets for trading:

Eurex Repo original source

Freely data available for Germany for the period 1871-1914.
In addition, 8 other data sets have been collected from previous work at the Center for Financial Studies.

Histat was developed in GESIS by J

This preliminary dataset is generated from the historical source "Handbuch der Deutschen Aktiengesellschaften" and is at an early stage.
We provide access to researchers from the field of economic history that are providing support in finalizing the dataset.
Once completed, the dataset will be made publicly available.