-- Regular papers. -- Choreographic Automata A Case Study in Healthcare Management. -- A Probabilistic Choreography Language for PRISM. -- Encoding Petri Nets into CCS. -- Field-based Coordination for Federated Learning. -- COTS: Connected OpenAPI Test Synthesis for RESTful Applications. -- Modelling, Verifying and Testing the Contract Automata Runtime Environment with Uppaal. -- Simulation-based Decision Support for Cross Organisational Workflows: A Case Study of Emergency Handling. -- An Enhanced Exchange Operator for XC. -- Short papers. .-The Concurrent Calculi Formalisation Benchmark. -- Survey papers. -- Team Automata Overview and Roadmap. -- Tool papers. -- An OpenWhisk Extension for Topology aware Allocation Priority Policies. -- Coconut Typestates for Embedded Systems. -- TRAC a tool for data aware coordination (with an application to smart contracts). -- ScaFi-Blocks A Visual Aggregate Programming Environment for Low Code Swarm Design. -- Visualisation of Collective Systems with Sequit and Sibilla. -- Implementing a Message Passing Interpretation of the Semi Axiomatic Sequent Calculus (SAX). -- SEArch: an execution infrastructure for service-based software systems.

This book constitutes the refereed proceedings of the 26th IFIP WG 6.1 International Conference on Coordination Models and Language, COORDINATION 2024, held in Groningen, The Netherlands, in June 2024, as part of the 19th International Federated Conference on Distributed Computing Techniques, DisCoTec 2024. The 8 full papers, 7 tool papers, 1 short paper and 1 survey paper included in this book were carefully reviewed and selected from 28 submissions. This conference provides a well-established forum for the growing community of researchers interested in models, languages, architectures, and implementation techniques for coordination.