Cohort

Want to share your knowledge?

University Partnerships

Develop new blockchain courses tailored to market needs

UBRI Research Corpus

Discover academic research on Blockchain and its impact across diverse sectors

Research Lab

A hub for community-driven research and tools to advance the XRP Ledger

Build

BUILD

Not sure where to begin? Discover our training and hackathons

Core Dev Online Bootcamp

An online program offering hands-on XRPL training for advanced C++ developers

Training

Join us in our office in Paris for a free 2-day training and learn how to build on the XRP Ledger

Hackathons

Collaborative coding events for innovative blockchain solutions

Launch

LAUNCH

Accelerate your project at the Aquarium Residency, where developers and entrepreneurs transform ideas into reality.

Aquarium Residency

A 12-week program for developers, entrepreneurs and enthusiasts in the XRPL ecosystem

Alumni Directory

Explore the incredible network of alumni who have been part of our Residency program

Adopt

Engage

ENGAGE

Join our buzzing community of blockchain enthusiasts, stay updated on the latest news and events

Events

Meetups

Join XRPL Meetups across Europe and beyond

Community Magazine

Your all-encompassing quarterly publication about the XRPL ecosystem

Podcast

Exclusive insights into key players and partners in our community

Our latest and freshest news

Community Events

COMING SOON

Come and join us at one of our many events!

Ecosystem Map

An extensive overview of all the XRP Ledger contributors. Can you spot your company?

From trading to gaming, discover the full potential of the XRP Ledger and top industry players

Sustainability

SUSTAINABILITY

Discover our commitment to sustainability through transparent tracking, regulatory compliance, and innovative methodologies in blockchain technology.

Dashboard

Track XRPL's energy efficiency and sustainability metrics, showcasing transparency and compliance in blockchain innovation.

MiCA Indicators

Learn how MiCA mandates crypto entities to disclose environmental metrics, ensuring accountability and EU compliance.

Methodology

Explore XRPL Commons' approach to measuring, mitigating, and reporting the XRP Ledger's environmental impact.

Our latest and freshest news

Community Events

COMING SOON

Come and join us at one of our many events!

Next XRPL Training Jan 26/27

From trading to gaming, discover the full potential of the XRP Ledger and top industry players

About Us

ABOUT US

Our mission is to nurture a strong and vibrant XRPL ecosystem. We empower and expand the XRPL community through training and active collaboration.

The Team

Meet our talented team

Blog

What have we been up to recently?

Annual Reports

Explore our yearly insights and achievements

Contact

Build

LEARN

Start here if you want to learn blockchain technology and effective teaching methods, access high-quality materials, quizzes, cases, and serious games, and more

Get Started

Empowering students and professors worldwide with blockchain training, research, and partnerships

DoctorBlock

Showcase your blockchain research in just 180 seconds

PhD in Blockchain

Applications are open to doctoral students for a 3-year paid position

Become a Teacher

Want to share your knowledge?

University Partnerships

Develop new blockchain courses tailored to market needs

UBRI Research Corpus

Discover academic research on Blockchain and its impact across diverse sectors

Research Lab

A hub for community-driven research and tools to advance the XRP Ledger

BUILD

Not sure where to begin? Discover our residencies and hackathon

Core Dev Online Bootcamp

An online program offering hands-on XRPL training for advanced C++ developers

Training

Join us in our office in Paris for a free 2-day training and learn how to build on the XRP Ledger

Hackathons

Collaborative coding events for innovative blockchain solutions

LAUNCH

BUILD

Not sure where to begin? Discover our residencies and hackathon

Aquarium Residency

A 12-week program for developers, entrepreneurs and enthusiasts in the XRPL ecosystem

Alumni Directory

Explore the incredible network of alumni who have been part of our Residency program

ADOPT

ENGAGE

Join our buzzing community of blockchain enthusiasts, stay updated on the latest news and events

Events

Attend one of our events and engage with the XRPL community

Meetups

Join XRPL Meetups across Europe and beyond

Community Magazine

Your all-encompassing quarterly publication about the XRPL ecosystem

Podcast

Exclusive insights into key players and partners in our community

Community Events

COMING SOON

Come and join us at one of our many events!

Our latest and freshest news

Ecosystem Map

An extensive overview of all the XRP Ledger contributors. Can you spot your company?

From trading to gaming, discover the full potential of the XRP Ledger and top industry players

SUSTAINABILITY

ENGAGE

Join our buzzing community of blockchain enthusiasts, stay updated on the latest news and events

Dashboard

Track XRPL's energy efficiency and sustainability metrics, showcasing transparency and compliance in blockchain innovation

MiCA Indicators

Learn how MiCA mandates crypto entities to disclose environmental metrics, ensuring accountability and EU compliance

Methodology

Explore XRPL Commons' approach to measuring, mitigating, and reporting the XRP Ledger's environmental impact

Community Events

COMING SOON

Come and join us at one of our many events!

Our latest and freshest news

From trading to gaming, discover the full potential of the XRP Ledger and top industry players

ABOUT US

ENGAGE

Join our buzzing community of blockchain enthusiasts, stay updated on the latest news and events

The Team

Meet our talented team

Community Events

COMING SOON

Come and join us at one of our many events!

Our latest and freshest news

Blog

What have we been up to recently?

Annual Reports

Explore our yearly insights and achievements

From trading to gaming, discover the full potential of the XRP Ledger and top industry players

CONTACT

The Aquarium

Cohort

9 Cohort 9

TBA

Apr 27

July 20, 2026

Paris, France

APPLICATIONS OPEN UNTIL

April 6, 2026

Apply now

The cohort

When

April

July 20, 2026

Where

Paris, France

Who

TBA

Application process

Application

Residents apply on the website

Interview

After being reviewed, selected applicants are invited for an interview

Validation

Selected candidates signed a contract and are officially part of the Residency cohort

Cohort

Cohort 9

APPLY NOW!

Start your application

What to expect

PHASE 1

Explore ideas to work

Week

1-3

PHASE 2

Build, test and learn

PHASE 2

Week

4-9

PHASE 3

Scale and grow

PHASE 3

Week

10-12

Our partners

No items found.

Need more info?
Reach out!

Aurélien Burget

Residency Director

Get in touch

Our residents

William Mesclier

Fillgood

#social #sports

"The Aquarium XRPL residency, which offers a unique support format, gave structure to my entrepreneurial project. These 12 out-of-time weeks enabled me to accelerate the process of designing and creating the product I'd been thinking about for several months. I hope to continue to evolve in this ecosystem in the future."

Fillgood

Simon Luling

Ekonavi

#collaborative #regeneration #sustainability

"The Aquarium - a truly nourishing experience, and important stepping-stone for my project. [...] The program with XRPL Commons truly brought the deeper dive needed in web3 use-cases to our project, and the team was there to accompany us in its applications. Furthermore, it has been a gateway to the big and diverse XRPL community, which brings many opportunities and exchanges along the way."

Ekonavi

Sébastien Manchon

Ekomia

#energy #efficiency

"The Aquarium XRPL Residency was a transformative experience, offering a wealth of learning and networking with experts in the XRPL community. Arriving with only a vague idea of my project, I emerged with a clear vision of the problem I aim to solve and a well-developed solution strategy. Personal thanks to the XRPL Commons team for their invaluable support and guidance."

Ekomia

Matt Mankins

Kudos

#funding

"The XRPL Aquarium program was a unique chance to work with passionate people using blockchain as part of a mission to do good. Being based on location in Paris - breaking the norm of virtual programs -reminded me how great it is to connect in person and why caring for our world is vital."

Kudos

Kelly Zhang

Buddies Club

#mentoring #diversity

"The Aquarium Residency not only gifted me with the invaluable treasures of time, autonomy, and a diverse cohort but also surrounded me with exceptionally kind and supportive individuals who played a pivotal role in nurturing my progress and making the journey even more emotionally fulfilling."

Buddies Club

Joshua Magie

#lending #finance

"From a developer standpoint, the environment was perfect for self-paced learning of the XRPL.org documentation. The exposure to different projects with their specific challenges and experimenting with how the Ledger can help be part of the solution is an exceptional software development environment that would be hard to find in the XRPL ecosphere."

Jeanne Bloch

Sparkling Debt

#lending #finance

"I am very grateful to the Aquarium XRPL Residency's support of my project. High-level experts' support, from tokenomics to legal and Sustainability, and diving deep into the XRP Ledger is invaluable for our next steps. Thank you!"

Sparkling Debt

Eric Pilat

Cara7

#sustainability

"David and his XRPL Commons team have created a top-tier platform and acceleration program in France, focused on Web3 technologies and the XRP blockchain. This is widely acknowledged by the members of the first cohort, including myself. [...] The XRPL Commons program has significantly accelerated my startup's growth."

Cara7

Andres Assmus

Cityzeen

#investment

"The unwavering support from XRPL Commons was a guiding beacon, nurturing resilience and growth. This vibrant community etched an indelible mark, giving me invaluable insights and connections. With newfound purpose, I embark, fueled by passion, to effect tangible, positive change. The XRPL Aquarium was not just a program it was a transformative passage that continues to shape my trajectory toward effecting meaningful change."

Cityzeen

Alex Jilbert

#social #sport

"XRPL Commons Residency is like YCombinator for Web3 builders. It provides all the tools you need to kickstart or level up your project. The residency also fosters cohesion with fellow entrepreneurs in the cohort and the broader blockchain ecosystem. Being part of this program is a truly unique opportunity not to be missed."