Fintech Meetups Barcelona

HiveFest is the annual gathering for Hive users and its ecosystem. Reunion x conference x social event, with people from over 165 countries discussing the future of decentralization, social media and Web3. The eleventh edition lands in Barcelona, 17-20 September 2026, under the banner Architecting Decentralization. Gaudí vibes only. Visca Hive. Link [https://hivefe.st/program.html](https://hivefe.st/program.html) AT AKASHA HUB ON SEPTEMBER 18 FROM 9.30 TO 18H.

From AKASHA Hub Barcelona

BUZOKU | AI & Crypto Meetup

Wed, Sep 9, 5:30 PM

From BUZOKU (Barcelona)

4.4

Buzoku Meetup | Web3 and AI | Barcelona Join us in Sant Gervasi for Buzoku, a bi monthly casual meetup for people building in Web3, AI, and digital systems. What started as a Web3 focused group is now expanding to include AI builders as well. The format No panels No presentations No agenda We meet at a bar, grab a drink, and talk. That is it. Who comes A mix of: • Engineers and technical builders • Founders and operators • Investors and traders • Designers and curious minds Working across: • Crypto, Web3, and digital assets • AI, agents, and applied machine learning You do not need to be working at the intersection. If you are deep in either space, you will find your people here. We are also very interested in where AI and crypto meet, including agentic systems, automated finance, and new coordination models. What to expect • Real conversations about what people are actually building • War stories, ideas, experiments, and lessons learned • A relaxed environment where you can meet people naturally No pressure to pitch. No structured talks. Just good people and good discussions. Why join • Meet high quality builders in Barcelona • Exchange ideas without the noise of formal events • Find collaborators, hires, or new opportunities 🍺 🍷 Drinks on us, both alcoholic and non alcoholic We try to keep the group high signal. If you are actively building or deeply involved in AI or crypto, you will get the most out of it.

2 attendees

INTERFACES - Encuentro Agentes del Arte y la Cultura

Sat, Sep 19, 9:00 AM

INTERFACES - Encuentro Agentes del Arte y la Cultura Punto de encuentro para quienes trabajan en el mundo del Artecon intereses comunes. Un lugar para conversar, compartir procesos, generar vínculos y descubrir nuevas afinidades. Networking Próximamente más info.

From AKASHA Hub Barcelona

From Qubits to post-quantum security

Thu, Sep 17, 4:30 PM

**OFFICIAL LINK : [HERE](https://luma.com/i95pdcdc)** ⊢ Intro to quantum computing [Albert Solana](https://www.linkedin.com/in/albertsolana/?utm_source=luma) ([Qilimanjaro](https://qilimanjaro.tech/?utm_source=luma), builders of quantum computers) ⊢ Introducion to Lattices, quantum-safe primitive by [Arnaucube](https://x.com/arnaucube?utm_source=luma) ⊢ A post-quantum ethereum by [Adrià Massanet](https://x.com/adria0?utm_source=luma) REGISTER [https://luma.com/i95pdcdc](https://luma.com/i95pdcdc) ORGANIZED BY [Ethereum Engineering Barcelona](https://luma.com/ethereumbcn?k=c)

From Barcelona International Choir

Barcelona International Choir

Tue, Sep 8, 6:00 PM

4.9

An international group of adults who enjoy learning about their voices, singing together and meeting people with love for music. The choir session is delivered in English. If you are interested in joining or trying a session, please get in touch 693056537. Thanks.

4 attendees

[Barcelona] SIA Angels & Beers -For Investors-

Wed, Sep 16, 6:00 PM

From SIA - Startup Investor Accelerator

From SIA - Startup Investor Accelerator

**Details** **The Location for the Event is To Be Announced Soon** Angel investing thrives on insights, relationships, and real conversations. **Angels & Beers** is a casual networking event where angel investors across sectors connect over beers and light bites to discuss trends, share experiences, and discover new opportunities. Expect a relaxed, engaging atmosphere designed for open dialogue and meaningful connections with fellow investors. **Who joins** Angel investors, early-stage startup backers, and those open to exploring the world of startup investing. **About the Organizer** **– [SIA Angel Hub](https://www.siaangelhub.com/) (previously SIA - Startup Investor Accelerator)** SIA is an angel investor hub designed to help more people become active participants in innovation through angel investing, entrepreneurship, and meaningful ecosystem connections. Through our events, community, and programs such as TAAC (Trans-Atlantic Angel Investing Cohort), we bring together global founders, aspiring and experienced investors, operators, and ecosystem leaders around practical learning, real opportunities, and long-term relationships. For investors, TAAC offers a hands-on angel investing experience built around real startup evaluation, due diligence, and collaborative investment decision-making. ([Express your Interest here](https://docs.google.com/forms/d/e/1FAIpQLSfER36gKV9uLA4iR5MQ_Xev1S-dzUacLn-6mBpofa3Y4uCYgw/viewform)) For startups, TAAC provides visibility, investor access, and the opportunity to compete for investment through our funding and investor programs. ([Express your Interest here ](https://gust.com/organizations/transatlantic-angel-conference/public_profile)) **Next opportunities** Stay in the loop by visiting our website and following us on [LinkedIn](https://www.linkedin.com/company/startup-investor-accelerator/ "https://www.linkedin.com/company/startup-investor-accelerator/"). * **[Startups](https://gust.com/organizations/transatlantic-angel-conference/public_profile "https://gust.com/organizations/transatlantic-angel-conference/public_profile")** [Express your Interest here ](https://gust.com/organizations/transatlantic-angel-conference/public_profile "https://gust.com/organizations/transatlantic-angel-conference/public_profile")\- You could be one of the next startups selected for our funding competition\. * **[Investors](https://docs.google.com/forms/d/e/1FAIpQLSfER36gKV9uLA4iR5MQ_Xev1S-dzUacLn-6mBpofa3Y4uCYgw/viewform "https://docs.google.com/forms/d/e/1FAIpQLSfER36gKV9uLA4iR5MQ_Xev1S-dzUacLn-6mBpofa3Y4uCYgw/viewform")** [Express your Interest here ](https://docs.google.com/forms/d/e/1FAIpQLSfER36gKV9uLA4iR5MQ_Xev1S-dzUacLn-6mBpofa3Y4uCYgw/viewform "https://docs.google.com/forms/d/e/1FAIpQLSfER36gKV9uLA4iR5MQ_Xev1S-dzUacLn-6mBpofa3Y4uCYgw/viewform")\- Explore our hands\-on angel program to grow your investing skills and confidence\.

2 attendees

Barcelona Thursdays Rooftop Afterwork

Thu, Sep 10, 5:00 PM

From Barcelona Techies 2

4.5

**🔥 HEY BARCELONA TECHIES! 🔥** * Welcome to **the most high-end, high-energy weekly meetup** in the city — the **ICON ROOFTOP TECHIES NIGHT** at **a famous rooftop location in Gracia.** * ***SIGN UP ON LUMA to get tickets [https://luma.com/bcntechies](https://luma.com/bcntechies)*** Forget your typical expat nights. Forget loud bars and random mixers. Here, every conversation *matters*. This is where **ambitious locals and international professionals** meet to truly **connect, collaborate, and create** — blending **TECH, SCIENCE, and ART** under the Mediterranean sunset. Follow our journey on **[Instagram](https://www.instagram.com/metapilotacademy/?utm_source=luma)** to see what’s next for the community. \#\# 🌇 WHAT MAKES THIS DIFFERENT We’re not a random meetup or a social crowd. Our community is **HIGHLY CURATED** — made up of **founders, engineers, scientists, creatives, and leaders** shaping Barcelona’s innovation scene. No loud-music chaos. No awkward small talk. No hookup energy. Just authentic, intelligent people building something meaningful together. 🚀 Expect to meet: * Pioneers from **FORTUNE 500 tech companies** (Meta, Google, Apple, Amazon, Tesla) * Researchers from **Barcelona’s top institutions** (BSC, IRB, UPF, UB, UPC) * **Artists, musicians, and designers** blending creativity with technology It’s the kind of energy you only get when everyone in the room *belongs there.* \*\*\* \#\# 🕓 THE FLOW ⏰ **19:30 sharp** — We gather in style. Collect your drink at reception 🍸 (ICON’s menu is exquisite), step onto the rooftop, and let the skyline set the mood. 🎤 **Lightning Talks:** Short, spontaneous, inspiring — straight from our own community members. The latest AI breakthroughs, mind-bending startups, art-tech collabs, and stories that spark curiosity. 💬 **Open Networking:** After the talks, the conversation takes off. You’ll move across small clusters of fascinating people — exchanging bold ideas, sharing experiences, and starting collaborations that could outlast the night. \*\*\* \#\# 💎 WHY BARCELONA TECHIES STANDS OUT Because this isn’t just a meetup. It’s a movement. A gathering of **like-minded professionals who uplift, inspire, and collaborate**, without the noise or the nonsense. You’ll find conversations that *matter*, people who *get you*, and opportunities that start naturally — between equals. 🌍 Whether you’re a visionary founder, a researcher, a digital nomad, or an artist with ambition — **this is where you belong.** \*\*\* ✨ **JOIN THE ICON ROOFTOP TECHIES NIGHT.** Experience the city’s smartest and friendliest community — **where innovation meets elegance, and every connection is real.** 🥂

1 attendee

[Barcelona] Startup / Investor Open Coffee

Tue, Sep 8, 8:30 AM

From Claude Code Barcelona

Come grab a coffee and chat about startups, growth, and investing with fellow entrepreneurs and investors! **Details** Building a startup takes more than a good idea—it takes the right network, insights, and support. Our **Open Coffee sessions** bring together founders, investors, mentors, and startup enthusiasts for meaningful conversations, shared experiences, and fresh perspectives. Each session is informal and shaped by the needs of those attending. You’ll introduce yourself, share current challenges, and get feedback, contacts, and advice from a supportive community. ***We are meeting at a cafe in Eixample.*** **Who joins** Startup founders, teams, investors, mentors, and career changers entering the startup world. **How to prepare** * Bring a notebook—plenty of wisdom is shared * Prepare a short intro: who you are and the value you bring * Think of 1–2 key challenges to discuss **About the organizer –** **[SIA Angel Hub](https://www.siaangelhub.com/?utm_source=luma) (previously SIA - Startup Investor Accelerator)** SIA is an angel investor hub designed to help more people become active participants in innovation through angel investing, entrepreneurship, and meaningful ecosystem connections. Through our events, community, and programs such as TAAC (Trans-Atlantic Angel Investing Cohort), we bring together global founders, aspiring and experienced investors, operators, and ecosystem leaders around practical learning, real opportunities, and long-term relationships. For **investors**, TAAC offers a hands-on angel investing experience built around real startup evaluation, due diligence, and collaborative investment decision-making. [Express your Interest here](https://docs.google.com/forms/d/e/1FAIpQLSfER36gKV9uLA4iR5MQ_Xev1S-dzUacLn-6mBpofa3Y4uCYgw/viewform?utm_source=luma) For **startups**, TAAC provides visibility, investor access, and the opportunity to compete for investment through our funding and investor programs. [Express your Interest here](https://canva.link/m52gaktvgcq50l8?utm_source=luma) Stay in the loop by visiting our website and following us on [LinkedIn](https://www.linkedin.com/company/startup-investor-accelerator/?utm_source=luma).

5 attendees

Back to school with Claude Code

Wed, Sep 16, 4:00 PM

From Founders Running Club :: Barcelona

**🎒 ¡Vuelta al cole con Claude Code Barcelona!** Prepara la mochila, que se viene un nuevo meetup de Claude Code Barcelona. No te pierdas nuestro Beginner Corner, dos charlas y una gran sesión de networking, gracias de nuevo a nuestro anfitrión Runroom. 🗣️ **Las dos charlas de esta edición serán en español**. ⚠️ Las plazas son limitadas. Te recomendamos reservar tu plaza cuanto antes. Si finalmente no puedes asistir, por favor avísanos con antelación para que podamos liberar tu asiento. 📅 16 de septiembre \| Apertura de puertas a las 18:00 h\, inicio a las 18:20 h 📍 [Runroom](https://www.runroom.com/) \- Carrer de Santa Eulàlia\, 5\-9\, 3ª planta\, Gràcia\, 08012 Barcelona Agenda ➡️ 18:00 h — Registro y bienvenida 🏢 18:20 h — Presentación de la empresa anfitriona y novedades de la comunidad 🎤 18:30 h — Beginner Corner 🎵 18:45 h — The Right Key: VocalKey y el método SDD (Spec-Driven Development), por María Rey Oyonarte (en español) 🔥 19:25 h — Stop Burning Tokens: cómo diseñar sistemas de IA rentables, por Adrià Batlle Cuito (en español) 🫱🏻‍🫲🏽 20:05 h — Networking *** ⚡ Beginner Corner Estrenamos formato: una charla express para explicar un concepto básico de Claude Code, pensada para quienes están empezando. Anunciaremos ponente y tema muy pronto. ¿Te apetece estrenarlo tú? Escríbenos: es la forma más fácil de subirse al escenario por primera vez. *** 🎙️ Charlas **The Right Key: VocalKey y el método SDD (Spec-Driven Development)** (en español) En una escuela de rock todo el mundo comparte el mismo problema: nadie recuerda en qué tono canta cada alumno cada canción, y el repertorio acaba repartido entre libretas, notas de móvil y memoria. De ahí nace VocalKey, una web app (MVP en pruebas) que guarda el repertorio, el rango vocal de cada alumno, el tono original de cada canción y el tono en el que cada persona la canta. María contará el camino que va de prompt en prompt en v0 hasta el Spec-Driven Development (SDD) con Claude Code, usándolo como extensión dentro de Antigravity y combinándolo con los modelos de IA de la propia plataforma. Qué cambió al dejar de pedir código y empezar a escribir especificaciones, qué se rompió por el camino y qué se lleva de vuelta al trabajo diario. Por María Rey Oyonarte, Senior Product Designer con experiencia liderando diseño end-to-end en startups B2B SaaS. También mezzosoprano y alumna de una escuela de rock, que es donde empieza toda esta historia. **Stop Burning Tokens: cómo diseñar sistemas de IA rentables** (en español) Los LLMs son cada vez más baratos, pero muchas aplicaciones de IA son cada vez más caras. El principal responsable del coste no suele ser el modelo, sino un mal diseño del sistema. En esta sesión veremos técnicas prácticas aplicadas en producción para reducir drásticamente el consumo de tokens manteniendo (o incluso mejorando) la calidad: context engineering, arquitectura de prompts, caching, estrategias de retrieval, structured outputs, patrones de orquestación y observabilidad de costes. Te llevarás ideas concretas para reducir latencia y coste de infraestructura de IA sin sacrificar la experiencia de usuario. Por Adrià Batlle Cuito, Founder & CEO en **LambdaLoopers**, una software company donde crean soluciones para empresas poniendo el foco en el impacto que esas soluciones tienen en las operaciones y el crecimiento del negocio. *** Queremos agradecer a nuestro anfitrión, **Runroom** 🙌, por proporcionar el espacio, así como la comida y las bebidas. 🍕🧃 Este evento es una iniciativa comunitaria y no está afiliado ni patrocinado oficialmente por Anthropic. ¡No te lo pierdas! 🎉 *** 🎒 **Back to school with Claude Code Barcelona!** Grab your backpack — a new Claude Code Barcelona meetup is coming. Don't miss our Beginner Corner, two talks and a great networking session, thanks again to our host Runroom. 🗣️ **Please note: both talks in this edition will be given in Spanish.** ⚠️ Spots are limited. We recommend reserving your spot as soon as possible. If you're unable to attend, please let us know in advance so we can release your seat. 📅 Sep 16th \| Doors open at 6:00 PM\, kick off at 6:20 PM 📍 [Runroom](https://www.runroom.com/) \- Carrer de Santa Eulàlia\, 5\-9\, 3ª planta\, Gràcia\, 08012 Barcelona Agenda ➡️ 6:00 PM — Check-in 🏢 6:20 PM — Host company presentation & community updates 🎤 6:30 PM — Beginner Corner 🎵 6:45 PM — The Right Key: VocalKey and the SDD (Spec-Driven Development) Method, by María Rey Oyonarte, in Spanish 🔥 7:25 PM — Stop Burning Tokens: Engineering Cost-Efficient AI Systems, by Adrià Batlle Cuito, in Spanish 🫱🏻‍🫲🏽 8:05 PM — Networking *** ⚡ Beginner Corner A new format: a lightning talk explaining one basic Claude Code concept, aimed at people who are just getting started. Speaker and topic will be announced very soon. Want to be the first one to give it? Reach out — it's the easiest way to get on stage for the first time. *** 🎙️ Talks **The Right Key: VocalKey and the SDD (Spec-Driven Development) Method** (In Spanish) At a rock school, everyone shares the same problem: nobody remembers which key each student sings each song in, and the repertoire ends up scattered across notebooks, phone notes and memory. That's where VocalKey comes from: a web app (MVP in testing) that stores the repertoire, each student's vocal range, each song's original key, and the key each student actually sings it in. María will walk through the path from prompting in v0 to Spec-Driven Development (SDD) with Claude Code, used as an extension inside Antigravity and combined with the platform's own AI models. What changed when she stopped asking for code and started writing specs, what broke along the way, and what she's taking back to her day job. She'll close with a live demo. By María Rey Oyonarte, Senior Product Designer with experience leading end-to-end design at B2B SaaS startups. Also a mezzo-soprano and rock school student, which is where this whole story starts. **Stop Burning Tokens: Engineering Cost-Efficient AI Systems** (In Spanish) LLMs are getting cheaper, but many AI applications are getting more expensive. The biggest cost driver is often not the model itself, but poor system design. In this session we'll share practical techniques used in production to drastically reduce token consumption while maintaining (or even improving) quality: context engineering, prompt architecture, caching, retrieval strategies, structured outputs, orchestration patterns and cost observability. Attendees will leave with concrete ideas to reduce both latency and AI infrastructure costs without sacrificing user experience. By Adrià Batlle Cuito, Founder & CEO at **LambdaLoopers**, a software company building solutions for companies with a focus on the impact those solutions have on business operations and growth. *** We'd like to thank our host, **Runroom** 🙌, for providing the space, snacks, and drinks! 🍕🧃 This is a community-run event and is not officially affiliated with or sponsored by Anthropic. Don't miss it! 🎉

116 attendees

Founders Running Club :: Barcelona

Sat, Sep 12, 6:50 AM

**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We like to be comfortable when we run and finish with coffee and conversations. Choose your pace or follow a pacer—pets, friends, family, are welcome. ️ Launched in San Francisco, July 16, 2022 Now in 35+ cities Running + Networking events + Community **Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats) **Stay updated**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) Podcast [http://podcast.foundersrc.com/](http://podcast.foundersrc.com/) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC) Website [http://foundersrc.com](http://foundersrc.com/)

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