Short-Term Scientific Missions (STSM) consist in exchange visits between researchers participating in a COST Action. This kind of activity is allowing scientists to visit an institution or laboratory in another COST Member, Cooperating Member or Near-Neighbour Country joining the Action. The duration of such  missions may last up to six months. The aim of a STSM is to foster collaboration in relevant  research infrastructures and to share new techniques that may not be available in a participant’s home institution or laboratory.

Take a look to our last STSMs

How to apply?

For any information about the submission procedure for applicants or hosts, please contact our Grant Awarding Coordinator  Penny LABROPOULOU or Vice-Coordinator Vojtech Svatek.

Open Calls

We have a joint call (deadline 25th of July 2022) for Short-Term Scientific Mission (STSM) and Virtual Mobility(VM) grant proposals. Click here for more information!

UPDATE: The joint call is extended for 1-2 STSMs/VM Grants. New collection date: 15th of September


If you want to apply for an STSM, please follow the steps below:

  1. Read carefully Annex 2 of the Annotated Rules for COST Actions.
  2. Obtain a letter of invitation from the Host Institution confirming that they can undertake the STSM on the given dates should your application be approved.
  3. If you do not already have an e-COST account, create one at and upload your CV
  4. Submit an application online at:

Detailed information on the submission process, requirements and conditions, along with the evaluation criteria and the duration of STSMs, is available at this document.

When to apply

Please, note that we have reached the limit of applications for the 3rd Grant Period and the Call is now closed.

This is a continuous open call, therefore you can apply for an STSM at any time during the project. Reminders will continue to be issued periodically to invite and encourage STSM applications. The number of granted proposals is determined by the available budget in each Grant Period.

For the 3rd Grant Period (ending in October 2022), there are no set collection dates. STSM applications will be evaluated within 2 weeks after they have been received.

Topics and hosts

For each call, there may be a list of suggested topics by WG (co-)leaders or interested Host institutions – although applicants can also apply for STSMs with other topics relevant to the COST Action. You can apply at any time throughout the project; if positively evaluated, your proposal will be included in the following Call. You can find more information on how to apply and the evaluation criteria for proposals in the following document.