Original author(s) Evan Prodromou
Developer(s) E14N
Stable release
1.0.0[1][2] / 27 August 2016; 7 months ago (2016-08-27)
Repository github.com/pump-io/pump.io
Written in JavaScript / Node.js
Operating system Cross-platform
Type Web application framework
License Apache License, Version 2.0[3]
Website pump.io

Pump.io (pronounced "pump eye-oh")[4] is a general purpose activity streams engine that can be used as a federated social networking protocol which "does most of what people really want from a social network".[1] Started by Evan Prodromou, it is a follow up to StatusNet;[5] Identi.ca, which was the largest StatusNet service, switched to pump.io in June 2013.[6] However, while StatusNet offered functionality similar to Twitter, pump.io offers much more general purpose social networking, and is being adopted by other types of web applications, such as MediaGoblin.[7]



Designed to be much more lightweight and efficient than its StatusNet predecessor,[5] Pump.io is written in Node.js and uses Activity Streams as the format for commands and to transfer data via a simple REST inbox API.[6]

Pump.io requires:

Pump.io can run easily on low-resource hardware (such as a Raspberry Pi or BeagleBone Black). It can be used via the Web UI, or other clients via the API.


As a distributed social network, Pump.io is not tied to a single site. Users across servers can subscribe to each other, and if one or more individual nodes go offline the rest of the network remains intact.

Limitations and issuesEdit

Features that were present in StatusNet are still (as of March 2014) not implemented in Pump.io, such as Groups,[8] hashtags[9] and page listing popular posts.[10]

See alsoEdit

External linksEdit


  1. ^ a b pump.io
  2. ^ "Releases · e14n/pump.io". Github. Retrieved 4 September 2016. 
  3. ^ "website". Retrieved 2014-03-22. Licensed under the Apache License, Version 2.0 (the "License")... 
  4. ^ Prodromou, Evan. "E14N Post". Retrieved 21 March 2014. 
  5. ^ a b Behrenshausen, Bryan. "pump.io: the decentralized social network that's really fun". opensource.com. Retrieved 21 March 2014. 
  6. ^ a b c Nathan Willis (March 27, 2013). "StatusNet, Identi.ca, and transitioning to pump.io". LWN.net. Retrieved 2014-03-20. 
  7. ^ Christopher Allan Webber (October 24, 2013). "Pump API progress video". mediagoblin.org. Retrieved 2014-03-22. 
  8. ^ "Groups". Retrieved 2014-03-20. 
  9. ^ "Automatically link hash tags". Retrieved 2014-03-20. 
  10. ^ "'Popular'". Retrieved 2014-03-20.