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Prototype Fund

Exploring ideas - fostering openness.

The Prototype Fund is the first low-threshold funding program for independent developers and small teams creating innovative open-source software. We provide the tech-savvy civil society with access to the resources and processes needed for developing user-centered, innovative software projects.
Since 2016, we have funded almost 400 projects. As a learning funding program, we have repeatedly made adjustments to become more efficient and effective. Now we are taking the next step and implement some significant changes. From now on, we are focusing on funding data security and software infrastructure.

Apply with your ideas for innovative open source software in the public interest! You will receive up to €95,000 over six months or €158,000 over ten months of funding from the German Ministry of Education and Research. We will also provide you with coaching, consulting and networking opportunities.

Timeline

1
Application Phase

November 11th, 2024 - January 2nd, 2025

During the application phase, you can submit your project ideas. To do so, you answer a couple of questions about your idea and indicate whether you are applying for six or ten months of funding. The application period starts on November 11th, 2024 and ends on January 2nd, 2025. On November 25 from 5 to 6 p.m. (UTC +1) an online application consultation hour will take place here, where you can ask any questions that are not answered in the FAQ. On November 26 from 5 to 6 p.m. (UTC +1) there will be an online consultation exclusively for FLINTA*. Write an e-mail to info@prototypefund.de for the login details. Unlike before, there will only be one application phase per year. The application phase for class 02 is expected to start on October 1st, 2025.


Selection Phase

January 2025 - April 2025

After receiving the applications, the Prototype Fund and DLR Projektträger teams review them and create a shortlist based on formal criteria. The shortlist is then presented to the jury and evaluated by them. The jury meeting will take place at the beginning of February. 25 to 30 projects will be selected and proposed to the Federal Ministry of Education and Research (BMBF) for funding. The BMBF reviews the proposals. All applicants will be notified of the decision in March.

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3
Formal Application

April 2025

All projects proposed for funding now require a formal application. To this end, applicants take part in our formal application workshop (Antragsworkshop): the formal application must be submitted to the BMBF by mid-April so that it can be fully reviewed and approved by the start of the funding phase.


Kick-Off Workshop

around June 1st, 2025

The Kick-Off workshop marks the official start of the funding phase. All projects in the class get to know the Prototype Fund team, the DLR Projektträger and each other, receive further information about the funding period and sharpen the vision for their project.

4

5
Funding Phase

June 1st, 2025 - November 30th, 2025

During the funding period, the grantees work intensively on their projects. They are in contact with the rest of their class and the Prototype Fund team. They are also entitled to coaching in the areas of project management, usability, branding, founding, etc.


Selection Second Stage Funding

September 2025 - October 2025

All those who have applied for a ten-month funding period submit a presentation and present their projects in an online selection meeting. Based on the submission and the presentation, a committee of jurors, the Prototype Fund and the DLR Projektträger will decide on further funding for a period of four months.

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7
Demo Day

around December 1st, 2025

The Demo Day is a public event, where all grantees present their experiences and project results as demos, in lectures or on panels after the six-month funding phase.


Second Stage

December 1st, 2025 - March 31st, 2026

During the four-month Second Stage, selected projects work on making their project usable and known. The focus is on user testing, community building and public relations, or financial security. Technical work is less of a priority.

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Second Stage Final Workshop

around April 1st, 2026

The final workshop of the Second Stage will be semi-public, with selected guests invited by the projects and program participants. The focus will be on detailed project presentations and an in-depth discussion of the results of the Second Stage.

Second Stage?

There is a fundamental problem in technology funding and especially in FOSS funding: The beginning of the innovation process is readily financed, but it often remains unclear how to proceed afterwards. Few technologies are ready to go live and sustain themselves after the initial funding. That’s why we offer the opportunity to work on securing a sustainable future for the project in four more months of funding with the Second Stage. This is done, for example, by building a community, distributing and improving the usability of the software, or by setting up an association structure. To do this, the grantees take part in business coachings, do public relations work, conduct user tests, or take care of the documentation of their work – depending entirely on what the individual project needs.

When you initially apply, you can indicate that you want to be funded with your project in the Second Stage. Three months after the start of the regular funding phase, a low-threshold application and selection process follows, in which 10-15 projects are selected.

Instructions for Application

The application phase for class 01 starts on November 11th, 2024 and ends on January 2nd, 2025.

Information and assistance with the application:

  • This checklist has all important steps and information on the application process.
  • The application guide will lead you through the application process step by step.
  • This is the associated funding guideline by the BMBF.
  • In this blog post (in German), we have compiled answers from successful applications from 2016 to 2024 and show why they were positively evaluated.
  • In this blog post (in German) we have published five additional application tips on things that we have frequently noticed.

When evaluating applications, the jury pays particular attention to the following criteria:

  • Does the project fit with the content orientation of the Prototype Fund?
  • Degree of innovation: How innovative is your project? (we use this definition of innovation).
  • Feasibility: Do you have the necessary skills and can the idea be implemented within six months? Are the technical implementation and the project plan (“milestones”) described in a comprehensible way?
  • Scope and social benefit of the project: How many people benefit from the project?
  • How do you rate the chances of success? Success is not only when you make money with your project. Nevertheless, it is good if you know the market and existing products, have dealt with them and can show how your idea differs from them and/or fits into the ecosystem.
  • No double funding: Has the basic idea of the project already been elsewhere, or is a similar product already available with open source code?

Important: We only fund open source software because it offers an opportunity for collaboration. We want to ensure that funded projects can be maintained and further developed in the future.

On November 25 from 5 to 6 p.m. (UTC +1) an online application consultation hour will take place here, where you can ask any questions that are not answered in the FAQ. On November 26 from 5 to 6 p.m. (UTC +1) there will be an online consultation exclusively for FLINTA*. Write an e-mail to info@prototypefund.de for the login details.

All set?
Aplly now!

FAQ

What does the Prototype Fund offer?

  • Financial support
    • for individuals of up to €47,500 for six months or €79,167 for ten months
    • for small teams (max. of four people) of up to €95,000 for six months or €158,333 for ten months
  • Support through consulting and coaching, e.g. in the areas of user-centered design, project management, security, founding, licenses
  • Exposure for your project through our channels
  • A network consisting of other grantees and alumni, other sponsors, potential partners and other contacts

Which key topics are funded?

Data security:
Data security tools focus on protecting sensitive data from loss, unauthorized access or manipulation. This could be an easier or more secure access to VPN encryption, a software testing tool or an application that implements security by design in another way.

Software infrastructure:
This includes software packages or standardized implementations of protocols that are necessary to write and operate applications. These elements are used by developers to reduce the number of work steps and form the basis for all the applications we use every day.

Can I book a consultation appointment?

No, unfortunately we cannot offer individual consultation appointments. For reasons of fairness, we do not comment on the substance of your application idea – besides, the evaluation of your submission is ultimately carried out by our jury. However, if you have any questions about the application or funding that are not answered on this page or in the application guide, please do not hesitate to email us at info@prototypefund.de.

What is the timeline?

The submission period lasts for two months. We will let you know whether the jury has recommended your project for funding within eight weeks of the submission deadline, i.e. in March 2025.
Please note: We ask that you refrain from making inquiries about the status of applications before the beginning of March.

We will invite all selected projects, or one person per team, to a formal application workshop via video call. On this day (mid-March), you will receive support in preparing the formal application. This will then be submitted to the Federal Ministry of Education and Research (BMBF), which will make the final decision on funding. Due to necessary processing times, the final funding decision from the ministry may not arrive until the start of the funding period in exceptional cases. Please bear this in mind if, for example, you want to arrange changes to working hours with employers.

Why are only open source projects being funded?

We are convinced that ideas that are shared offer new starting points for projects and collaborations. We want to ensure that funded projects can continue to be developed in the future.

Where can I see the funding guideline?

You can find the BMBF’s guidelines here.

Who can apply?

  • You are a single developer or part of a team* of up to four people.
  • Your idea is a software project.
  • You are at least 18 years old.
  • As a single developer, you are a resident of Germany, are self-employed** or a freelancer and pay your taxes here.
  • For teams, the registered office of your GbR is in Germany, the places of residence of individual team members may be in other EU countries.

*Teams: Please read the questions under Funding before applying to find out what requirements apply to you.
**or (partially) released from work by your employer for the duration of the project. This means that you can continue to be employed part-time.

Can companies, institutions or organizations apply?

No. Teams must join together as a GbR (see questions under funding) to receive funding.

How cumbersome is the application process?

Not at all. Using the application form, you can briefly and clearly describe to the jury what you would like to implement: in concise texts that explain the core of your idea and make the connection to our funded priorities clear.
If your project is selected by the jury, you will then have to submit a somewhat more extensive formal application in accordance with the BMBF’s funding guideline. We will help you with the application and organize a joint application workshop for this purpose.

When can I apply?

For class 01, for which funding starts on June 1st, 2025, you can apply from November 11th, 2024 to January 2nd, 2025.

You can apply for class 02 from October 1st, 2025.

Can I also apply with an existing project?

Yes, but the Prototype Fund project should be clearly distinguishable within the project and have an independent degree of novelty, for example, if you plan to expand or supplement your project with a module. In any case, it must be clearly recognizable what will be developed during the funding period.

Can I apply as a retiree?

The following applies to those of retirement age who are interested in funding: Only those who have reached the so-called standard retirement age are allowed to earn an unlimited amount in addition to their statutory pension. The standard retirement age is defined in the Sozialgesetzbuch VI definiert (§ 35 Sentence 2 SGB VI) uand is reached at the age of 67. Those who retired earlier are subject to income limits.

Can I apply as a student?

As a student, you must observe the working student rule: You cannot work on the project full-time while studying full-time, but only for a maximum of 20 hours per week during the semester for a period of six months.

Who is not entitled to apply?

Companies, universities, non-university research institutions and other institutions and associations are not eligible for funding.

How do I submit my application?

Answer all questions on our application platform and click on “submit for review”. You will then receive an automatic email to set a password for the application platform.

If you need support or something does not work properly, you can reach us here:
info@prototypefund.de

Can I apply in English?

Yes. Ideas can be submitted in German and English.

How is the funding amount determined and how does it relate to the total working hours?

The maximum funding amount of €95,000 for teams is calculated based on the total number of working hours for two full-time positions, i.e. 1900 working hours or 950 working hours for each position, with a maximum hourly rate of €50 for the entire funding period. For individuals, the maximum funding amount is €47,500, i.e. a full-time position with 950 working hours at a maximum of €50 each. If the hourly rate needs to be higher, the number of hours must be reduced accordingly – you will also need to provide us with invoices to prove that you, as a freelance developer, have earned higher hourly wages (maximum €150). Teams name and price work packages, which, when added together, may not exceed the maximum funding amount (see above). The sums for the Second Stage are each based on one or two full-time positions with a duration of four months. Please note that the hourly wage in the second stage is capped at €50.

The number of hours indicated must be in reasonable proportion to the project idea. Think about how much time you will need to invest to implement the proposed prototype in advance. Realistic planning of the project scope is also one of the evaluation criteria of the jury. If you are employed part-time in addition to receiving funding from the Prototype Fund, the laws on occupational safety and health determine the upper limit for hours.

Who evaluates my idea?

The BMBF’s funding decision is based on a recommendation from our jury. The jury supports us with its knowledge and experience in the areas of IT security, infrastructure, software building blocks and open source. The jury evaluates the numerous submissions in terms of their prospects of success, meaningfulness and added value for society.

The jury proposes 25 to 30 projects per round for funding.

As soon as the jury members have been determined, we will announce them on the website.

Will I receive feedback if my idea is not funded?

After the jury meeting, acceptances and rejections will be sent to the applicants. If you have any questions about the reasons for rejection, you can always ask for feedback at info@prototypefund.de.

Please understand that we cannot proactively send feedback to all applicants, provide notes from the jury, or give more specific information than general statements about the reasons for rejection.

If the jury selects my project, how does the formal application process work?

If your project is selected by the jury, you will then have to submit a formal application in accordance with the BMBF’s funding guideline. We will support you in this process in the formal application workshop and help you complete the formalities. If the jury has imposed conditions on your project idea, these will be incorporated. In addition, further documents must be submitted. The BMBF will use this application to decide whether a project will receive funding.

Here is a checklist of the documents to be submitted for project approval:

For all:

  • formal application (essentially consists of the initial application),
  • de-minimis declaration (you will receive a template from us),
  • a positive bank statement (at least the balance of your own contribution of 5% of the project scope),
  • declaration of the criminal liability of subsidy fraud (you will receive this from the DLR).

For Teams:

  • (Civil-law) partnership (GbR) contract (one person must be authorized to represent the partnership, you will receive a template from us)
  • the postal addresses of all GbR members,
  • details of the GbR bank account (can also be done after approval),
  • GbR tax number/registration with the tax office (can also be done after approval).

What do I need to know about Second Stage funding?

In addition to the regular six-month funding, there is the option to apply for a ten-month funding. You indicate this in your initial application and describe what you want to achieve in the four additional months - the so-called Second Stage. The Second Stage is no longer primarily about technical work on the project, but about bringing the project into use and making it known. The focus is on user testing, outreach, community building, licensing, and, if necessary, developing a business model. In the Second Stage, you will participate in coaching sessions that match your needs.

In the fourth month of the regular funding phase, you submit a (short) application for the Second Stage. This is followed by a presentation to a committee of judges, representatives of the Prototype Fund and the DLR Projektträger. After this presentation, a decision will be made on whether to grant Second Stage funding.

In the Second Stage, you can apply for a maximum of €63,333 as a team and €31,667 as an individual; these sums are based on two or one full-time positions over four months. The hourly wage is capped at €50.
Projects that receive funding for ten months also take part in the Demo Day after six months. After the Second Stage has been completed, a workshop is held with a few guests, at which the project results are presented and discussed in detail.

What does the funding consist of and what costs can I claim?

Up to 30 projects will be funded for six months with up to €95,000 (teams) or €47,500 (individuals). 10 to 15 projects will be funded for a further four months with €63,333 (teams) or €31,667 (individuals).

The funding is mainly provides for the working hours on the project as well as overhead costs. Personnel costs are calculated based on the hours you work multiplied by your approved hourly rate. Overhead costs are all costs that cannot be directly attributed to individual cost units, such as costs for office supplies. For these costs, you can claim a flat rate of 5% of the personnel costs in the application process.

The funding amount is always a maximum of 95% of the total project budget. The remaining minimum of 5% is the self-contribution – i.e. the time you invest in the project. You have the option of proving that you can actually contribute this time free of charge by providing evidence of other income (e.g. from an employment relationship or from contracts) or savings.

I am working on my project with a team. What do I need to bear in mind?

Teams must form a Gesellschaft bürgerlichen Rechts (GbR). No other legal form is permitted for teams that receive funding through Prototype Fund.

All team members receiving funding from the Prototype Fund must be registered as resident in the EU. However, the registered office of the GbR (and the place of residence of the managing director) must be in Germany. Teams selected for funding by the jury submit the formal application as a civil-law association (GbR). The applicant is always the GbR – all persons who are to receive funding must be united in the GbR: subcontracting to third parties is not permitted. You appoint a project manager or another partner as managing director, who legally represents the GbR externally (and, for example, participates in the application workshop and signs the appilcation).
We will provide you with a template for setting up a GbR when you submit your application – only then is it necessary to set one up. If you want to be funded as a team, you should also identify the individual components of the project and assign them to the people in the team.

What else can I expect during the project period?

The Prototype Fund is also a research program: It is important to us to be in active exchange with our projects in order to better understand how developers cooperate, how innovation is created and where we can particularly support you along the way. That’s why there are a couple of obligatory and voluntary exchange formats, and a sustainability evaluation. We ask all projects to take the exchange seriously, because this way we can address problems more quickly and help you if necessary. In addition, the exchange helps us to evaluate the program and make improvements if necessary.

These are the mandatory dates for the funding recipients:

  • kick-off workshop (full day in Berlin, all team members, around June 1st)
  • scheduled exchanges during the funding period
  • demo day (full day in Berlin, all team members, around December 1st)
  • Second Stage final workshop (full day in Berlin, all team members of Second Stage projects, around April 30th).

What are the payment terms?

Payment is made in installments based on work performed, at the beginning of each new quarter.
Example: If funding begins on June 1st, 2025, you can retroactively access the funding amount for the work performed in this quarter at the beginning of the new quarter from July 1st, 2025.

What happens at the end of the project period and after?

At the end of the six-month project period, we invite all grantees to a Demo Day. This day is designed to showcase the prototypes and share the experiences you have had as developers during the funding period. The Demo Day is open to the public, so you can also talk to future users and other interested parties. We will connect you with coaches and other sponsors during the project period. As part of the Prototype Fund network, you will remain closely connected to the program and other participants even after the project period. The project descriptions will also remain available on our website after the end of the funding period.
After ten months, a semi-public final workshop will be held for the Second Stage participants, with a few invited guests. The focus here is on a detailed presentation of the projects.

In addition to publishing the code in an open source repository at the end of the project, you will create a short and generally understandable project report for the funding agency, which will also be published. Examples from previous years can be found here. About a year after the funding, we will also contact you for a sustainability evaluation – a follow-up discussion in which we look forward to learning about further project development.

Under which license must the software created during the funding period be published?

The software must be published under an open source license. The code must be publicly accessible (e.g. via a public Github or Bitbucket repository). Here is a guide on open source licenses.