AsyncAPI
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FOST London
The Core Narrative: In 2026, the primary consumer of a UK bank’s API is no longer a human with a mobile app—it is an Autonomous Agent. From automated mortgage refinancing to real-time treasury management for SMEs, the London financial ecosystem is shifting from GenAI (talking about money) to Agentic AI (moving money).
FOST London 2026 explores the technical and regulatory architecture required to support a world where APIs are the "legal and functional hands" of AI. We are moving from Open Banking (data access) to Actionable Banking (execution), where embedded finance becomes an invisible utility within the agentic workflow.
3,000+
Participants
1,500+
Companies
100+
Sessions
100+
Speakers
Your FOST ticket unlocks more than just the main event. Enjoy access to exclusive partner events happening at the same time.
On the Schedule
(Detailed schedule coming soon)
From hands-on workshops to real-world case studies, explore the full agenda, featuring a wide range of topics, including API monetization, security, AI-driven automation, and emerging technology trends.
Be a part of real learning, real connections, and real-world value.
Level up your skills
Go beyond the basics—dig into API design, security, management, and real implementation challenges.
Learn from people who've done it
Explore real case studies, practical lessons, and unfiltered insights from teams building and scaling APIs.
Boost your credibility
Complete curated learning tracks and earn certifications that show you know your stuff.
Build the right network
Meet API leaders, builders, and thinkers shaping the future, across industries and regions.
See what’s next before it hits
AI, LLM APIs, sustainability, platform governance—get ahead of the curve with what’s coming in the API space.
2026 Selected Sponsors
Platinum Sponsors
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In a world powered by APIs, Postman is the leading API collaboration platform, eliminating the pain of disconnected tools by unifying the entire API workflow in one place. Unlike traditional solutions, Postman streamlines design, testing, and documentation on a single platform, enabling seamless collaboration from creation to deployment. By replacing fragmented workflows with a secure, integrated experience, Postman accelerates development and ensures reliable APIs in today’s AI-first era. www.postman.com
Gold Sponsors
Google Cloud Apigee is a comprehensive API management platform enabling organizations to design, secure, deploy, and scale APIs with confidence. It simplifies connecting applications, data, and services, accelerating digital transformation and unlocking new revenue streams. Leverage Apigee to power innovation, enhance developer experiences, and build robust, secure digital ecosystems essential for today's interconnected world and GenAI initiatives.
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Treblle is a federated API Intelligence platform offering enterprises full API visibility from one integration point. It deploys on-prem or in a private cloud, ensuring enterprise-grade security and compliance. Treblle enables shift-left with API Intelligence, Discovery, Observability, Analytics, Runtime Security, Governance, Developer Portals, and an AI-powered Integration Assistant. Recognized by Gartner over 15 times and awarded for Observability, Treblle drives faster innovation while enabling enterprises to maintain full control over their entire API landscape. www.treblle.com
Silver Sponsors
Equixly is an offensive security platform powered by an Agentic AI Hacker. Continuously attack APIs and applications to uncover real, exploitable risk before attackers do.
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Sopht is an Environmental Services company that allows organizations to pilot their environmental impact and automate their decarbonation. Sopht provides a lever for optimizing and rationalizing the challenges of an IT department.
Greenpixie is the leading provider of usage-based sustainability data for hyperscaler cloud users (AWS, Azure, GCP). We measure our customer’s cloud emissions, helping you to use cloud sustainability as a lever for your business goals.
Bronze & Community
SmartBear is pioneering innovation in software quality, embracing AI’s transformative potential. The company’s powerful solution hubs, including SmartBear API Hub, SmartBear Insight Hub, and SmartBear Test Hub, featuring HaloAI, give software development teams around the world visibility and automation that provide end-to-end quality.
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Open source tools to easily build and maintain your event-driven architecture. All powered by the AsyncAPI specification, the industry standard for defining asynchronous APIs.
From data to training, we provide the solutions you need to make your IT sustainable. https://resilio-solutions.com/en
Aguaro is a SaaS platform that empowers operational leaders to reduce environmental costs, secure ESG targets, influence stakeholders and strengthen their resilience.
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The Green Web Foundation tracks and promotes green energy use in the internet industry. It offers tools, services, training, and advocacy to help websites, hosting providers, and users reduce their digital carbon footprint.
How to get involved
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Connect with decision-makers shaping the API economy.
Sponsorship info
Attend & network
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Get your ticket
Past conference highlights
Siham Essodaigui
Head of Applied AI
Nat Sakimura is a well-known identity and privacy standardization architect and the Chairman of the Board of the OpenID Foundation. Besides being an author of such widely used standards as JWT (RFC7519), JWS (RFC7515), OAuth PKCE (RFC7636) and OpenID Connect, he helps communities to organize themselves to realize the ideas around identity and privacy. His current projects include FAPI, ISO/IEC 29184 Online privacy notice and consent, ISO/IEC 27551 Unlinkable Attribute-based entity authentication, OAuth JAR, RAR, and mTLS.
