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Apache Camel
Developer(s)Apache Software Foundation
Initial releaseJune 27, 2007; 16 years ago (2007-06-27)[1]
Stable release
4.0.x (LTS)4.0.4 / 1 February 2024; 2 months ago (2024-02-01)[2]
4.4.x (LTS)4.4.1 / 14 March 2024; 27 days ago (2024-03-14)[2]
4.5.x (latest)4.5.0 / 28 March 2024; 13 days ago (2024-03-28)[2]
Written inJava, XML
Operating systemCross-platform
TypeEnterprise Integration Patterns Enterprise Service Bus SOA Message Oriented Middleware
LicenseApache License 2.0

Apache Camel is an open source framework for message-oriented middleware with a rule-based routing and mediation engine that provides a Java object-based implementation of the Enterprise Integration Patterns using an application programming interface (or declarative Java domain-specific language) to configure routing and mediation rules.[clarification needed]

The domain-specific language means that Apache Camel can support type-safe smart completion of routing rules in an integrated development environment using regular Java code without large amounts of XML configuration files, though XML configuration inside Spring Framework is also supported.

Camel is often used with Apache ServiceMix, Apache ActiveMQ and Apache CXF in service-oriented architecture projects.


See also


  • Ibsen, Claus; Anstey, Jonathan (2018), Camel in Action (2nd ed.), Manning Publications, p. 912, ISBN 978-1617292934
  • Cranton, Scott; Korab, Jakub (2013), Apache Camel Developer's Cookbook (1st ed.), Packt Publishing, p. 424, ISBN 978-1-78217-030-3
  • Ibryam, Bilgin (2013), Instant Apache Camel Message Routing (1st ed.), Packt Publishing, p. 62, ISBN 978-1-78328-347-7
  • Ibryam, Bilgin (2016), Camel Design Patterns (1st ed.), Leanpub, p. 111


  1. ^ Apache Camel 1.0, retrieved 15 April 2021
  2. ^ a b c Releases - Apache Camel, retrieved 26 September 2022