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112 changes: 84 additions & 28 deletions data/2026/api-days-london-2026/event.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -7,39 +7,51 @@ status: upcoming
image: /img/events/api-days-london-2026/cover.jpg
description: >-
The OpenAPI Initiative returns to API Days London in 2026 with a dedicated
OpenAPI track at Convene Sancroft, St. Paul's — opening with OpenAPI in the age
of AI, what 1,637 'x-' extensions found in the wild say about the edges of the
specification, and what's new in OpenAPI 3.2. The rest of the program will be
announced closer to the event.
OpenAPI track at Convene Sancroft, St. Paul's — opening with OpenAPI in the
age of AI, what 1,637 'x-' extensions found in the wild say about the edges
of the specification, practical tactics for upgrading to OpenAPI 3.1 and
beyond, Arazzo workflows that AI agents can execute, and the state of
proposals for API security profiles in OpenAPI.
permalink: /events/api-days-london-2026
speakers:
- erik-wilde
- frank-kilcommins
- kin-lane
- lorna-mitchell
- chris-wood
tags:
- event
metaDescription: >-
The OpenAPI Initiative track at API Days London 2026 — OpenAPI in the age of AI,
what OpenAPI extensions map out, and what's new in OpenAPI 3.2.
The OpenAPI Initiative track at API Days London 2026 — OpenAPI in the age of
AI, what OpenAPI extensions map out, upgrading to 3.1+, Arazzo agent
workflows, and API security profile proposals.
agenda:
October 1:
OpenAPI Track:
- title: OpenAPI Track Welcome and OpenAPI in the Age of AI
time: 9:30am–9:55am
- title: OpenAPI Track Welcome
time: 9:30am–9:35am
speaker: erik-wilde
permalink: /events/talks/api-days-london-2026-welcome-openapi-age-of-ai
- title: 'Beyond OpenAPI: API Workflows That AI Agents Can Actually Execute'
time: 9:35am–9:55am
speaker: frank-kilcommins
permalink: /events/talks/api-days-london-2026-workflows-ai-agents-execute
- title: OpenAPI Extensions Are Not a Mess, They Are a Map
time: 10:00am–10:25am
time: 9:55am–10:20am
speaker: kin-lane
permalink: /events/talks/api-days-london-2026-openapi-extensions-map
- title: What's new in OpenAPI 3.2
time: 10:30am–10:55am
- title: 'OpenAPI Upgrades: The What, the Why and the How'
time: 10:20am–10:45am
speaker: lorna-mitchell
permalink: /events/talks/api-days-london-2026-whats-new-openapi-3-2
permalink: /events/talks/api-days-london-2026-openapi-upgrades
- title: The State of Proposals for API Security Profiles in OpenAPI
time: 10:45am–11:10am
speaker: chris-wood
permalink: /events/talks/api-days-london-2026-api-security-profiles
talks:
- slug: api-days-london-2026-welcome-openapi-age-of-ai
title: OpenAPI Track Welcome and OpenAPI in the Age of AI
time: 9:30am–9:55am
title: OpenAPI Track Welcome
time: 9:30am–9:35am
category: OpenAPI Track
speakers:
- erik-wilde
Expand All @@ -50,9 +62,36 @@ talks:
of ways? We look at how OpenAPI can help you, how OAI can help you using
OpenAPI better, and how AI means that you have to slightly adjust the way
you design and manage your APIs.
- slug: api-days-london-2026-workflows-ai-agents-execute
title: 'Beyond OpenAPI: API Workflows That AI Agents Can Actually Execute'
time: 9:35am–9:55am
category: OpenAPI Track
speakers:
- frank-kilcommins
description: >-
AI agents can call individual API endpoints, but multi-step workflows?
That's where they struggle. OpenAPI describes what each endpoint does, but
not how to orchestrate them into business processes. Agents are left to
infer sequencing, handle conditional logic, and manage state across
calls—burning tokens and producing unpredictable results. The Arazzo
Specification solves this by providing machine-readable workflow
descriptions that agents can execute directly. And Arazzo 1.1 takes it
further, extending support from OpenAPI-based REST services to
AsyncAPI-defined event systems, enabling true workflow orchestration across
synchronous and asynchronous boundaries. This talk explores what's new in
Arazzo 1.1: AsyncAPI support for event-driven workflows, enhanced selector
support using JSONPath and XPath for precise data extraction, and chained
workflow composition for reusable process libraries. These capabilities
transform how agents interact with APIs—from inferring workflows to
executing defined processes. Whether you're building automation across
distributed systems, exposing use-case-oriented capabilities to AI agents,
or designing MCP servers with governed capability access, Arazzo 1.1
provides the declarative fabric for predictable, testable, agent-executable
workflows. If OpenAPI tells agents what they can call, Arazzo tells them
what they should do—and how to do it reliably.
- slug: api-days-london-2026-openapi-extensions-map
title: OpenAPI Extensions Are Not a Mess, They Are a Map
time: 10:00am–10:25am
time: 9:55am–10:20am
category: OpenAPI Track
speakers:
- kin-lane
Expand Down Expand Up @@ -82,20 +121,37 @@ talks:
contract. It is operational metadata about the contract, and it belongs
alongside it, in Overlays and APIs.json, rather than crammed inside an
OpenAPI.
- slug: api-days-london-2026-whats-new-openapi-3-2
title: What's new in OpenAPI 3.2
time: 10:30am–10:55am
- slug: api-days-london-2026-openapi-upgrades
title: 'OpenAPI Upgrades: The What, the Why and the How'
time: 10:20am–10:45am
category: OpenAPI Track
speakers:
- lorna-mitchell
description: >-
Keeping up with all the new standards can be hard work! Instead, join this
session for an overview of what's new in the OpenAPI 3.2 release, so you'll
know what to expect when it's time to upgrade. You'll hear about support for
more HTTP methods, multipart formats, and handling the full query string as
a single input. There's also a major upgrade to tags, including nesting,
multiple tag types, and additional metadata—replacing the extensions you may
already be using with tags. The session will also cover document identities,
new security scheme additions, and improved support for XML-format APIs.
Come along to learn more about the latest changes and prepare for the
future!
Plenty of teams produced an OpenAPI 3.0 description years ago and have been
using it ever since; the tooling has moved on, and they haven't. The upgrade
to 3.1 and beyond is achievable and brings many benefits: proper JSON Schema
alignment, nullable retired in favour of type arrays, webhooks described
where they belong, and $ref that plays nicely with a description beside it.
In this session you'll hear practical tactics for making the jump, what to
expect along the way, and how to get the best from the tools that have
appeared while you weren't looking. Find out what your API description
could be doing for you instead of quietly rotting in a repository.
- slug: api-days-london-2026-api-security-profiles
title: The State of Proposals for API Security Profiles in OpenAPI
time: 10:45am–11:10am
category: OpenAPI Track
speakers:
- chris-wood
description: >-
OpenAPI Security Scheme Objects are a point-in-time snapshot of security
that is increasingly duplicated in dedicated security profiles like FAPI and
GNAP. OpenAPI needs a way to align more closely with security requirements,
while also dovetailing with existing approaches like OpenID Discovery, which
allows clients and agents alike to scaffold code and make runtime decisions
meaningfully. This session walks through the state of the current proposals
to enhance the OpenAPI Specification and unlock these capabilities. It will
describe the proposed additions to OpenAPI, and how they might improve how
security requirements are represented in OpenAPI in the future. We'll touch
on the proposal's status and demonstrate meaningful examples showing the
value of these improvements.
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