Opey Agentic API Discovery and Action

Tell Me, Give Me, Show Me! Interacting with APIs in a conversation. Painting arbitrary interfaces in real time.

Growing Complexity - The Wild West Well over 200 million APIs worldwide

The Open Bank Project API Explorer ➔ 500+ API endpoints (open banking and beyond) ➔ API First ➔ Automated Documentation ➔ Consistent

Introducing Opey’s mission is to simplify discovery, action and interface creation via APIs through natural language conversation. Using GPT-4o, working with OBP API v5.1.0. The Intelligent API Assistant Agent

Opey v2.0 6 From informing to executing. Opey 2 moves from guidance to action. With delegated permissions via open banking consents, Opey becomes an agent that can directly execute API calls.

How Why Opey Works ➔ API-Driven ➔ Machine-readable ➔ Focus on authentication ➔ Respects the OBP role and consent framework

Behind the scenes ➔ Parse: Opey ingests Swagger-defined API endpoints, organising them into structured, retrievable documents. ➔ Identify: Using vector similarity search, Opey interprets queries and identifies the most relevant API endpoints. ➔ Execute: Opey uses tools to call the relevant APIs.

Creating the database

AI Agent

(OBP) Consents ● Application Access ● User Consent Flow ○ Initiation ○ Authentication & Authorisation ○ Confirmation ○ Strong Customer Authentication ○ Status / Validity ○ Revocation ● Exemptions

Trends for the Future ● The Age of AI is powered by APIs: An agent will need access to an array of “AI-friendly” APIs to perform complex tasks. ● Arbitrary interfaces: We are used to providing the same GUI to all users—what could we do with the degree of UI fluidity promised by agents? ● Agentic Payments Everything: With a more sophisticated consent framework, we will be able to securely delegate payments and other sensitive yet tedious tasks to agents.

Lessons So Far ● Get ready for (pleasant) surprises. ● We’re still writing code. ● We’re improving our documentation, now for Opey!

What might Opey do next? ● Integrate into new API catalogs or data frameworks to unlock and reveal use cases across different industries. ● Improve interoperability with legacy systems - REST APIs are not the only interfaces. SQL is also an interface.. ● Evolve user-tailored interaction frameworks to align Opey’s functionality with specific requirements and user personas

Opey www.openbankproject.com