API Libraries

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API Libraries allow you to work with either the WebSocket Steemd API, or the cli_wallet API. They are available for many languages.

Be aware you don't need to run your own Steem daemon for most cases, you can just connect to a public one, such as Steem.WS ran by @Xeroc and @Jesta.

Items tagged with {TX SIGNING} support the ability to build STEEM transactions. Those without the tag may not be able to build transactions, e.g. upvotes, price feeds etc.

Building your own library

Both Steemd and the cli_wallet use a standard JSON RPC over Websockets or HTTP system for most calls. @klye has written an article explaining the basics of the JSON RPC system: https://steemit.com/steem/@klye/an-introduction-to-steemd-api-calls-functions-and-usage

To support transactions, such as upvoting, memos, and posts, you can check out this in-depth article by @xeroc, creator of the Python Steem library, Piston: https://steemit.com/steem/@xeroc/steem-transaction-signing-in-a-nutshell


  • steem-python (Steemit Inc.) {TX SIGNING} - "steem-python is the official STEEM library for Python. It comes with a BIP38 encrypted wallet and a practical CLI utility called steempy."
  • Piston (@xeroc) {TX SIGNING} - A powerful python API capable of making bots in just a few lines of code, and any other interaction with the Blockchain that you would require.
  • beem (@holgern) {TX SIGNING} - Unofficial Python Library for Steem. A powerful python API similar to steem-python, but with additional features and Windows support.


  • SteemJS (@svk) {TX SIGNING} - A javascript library capable of building, signing, and broadcasting Steem transactions, and other useful functions.
  • SteemJS (@pharesim) - Unrelated to SVK's SteemJS. This offers nothing more than a very light JS API for connecting to the Steem WebSocket API.






  • Steem SQL (@arcange) - A publicly exposed Microsoft SQL database containing all the blockchain data for STEEM.




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