# FDC3 App Directory API

**Canonical:** https://apis.io/apis/fdc3/app-directory-api/  
**Provider:** FDC3 — https://apis.io/providers/fdc3/  
**Base URL:** https://appd.example.com  
**Documentation:** https://fdc3.finos.org/docs/app-directory/spec

FDC3 App Directory API is one of 6 APIs that [FDC3](https://apis.io/providers/fdc3/) publishes on the [APIs.io](https://apis.io/) network. This API exposes 1 JSON Schema definition. Tagged areas include App Directory, Application Registry, REST API, Financial-Services, and Open Standard. The published artifact set on APIs.io includes API documentation, a GitHub repository, an API reference, and 1 JSON Schema.

The FDC3 App Directory (AppD) is a REST API standard for registering and discovering financial desktop applications. Desktop Agents query App Directories to resolve application definitions when launching apps or resolving intents. The v2 endpoints are the current standard, supporting retrieval of all app definitions and lookup by appId. Authentication is supported via HTTP Authorization Bearer JWT tokens. Implementations are provided by vendors and financial institutions; FINOS publishes the specification and JSON schema.

## Machine-readable artifacts (5)

- **Documentation** — https://fdc3.finos.org/docs/app-directory/spec
- **OpenAPISpec** — https://fdc3.finos.org/schemas/2.2/app-directory.html
- **JSONSchema** — https://fdc3.finos.org/schemas/2.2/appd.schema.json
- **GitHubRepository** — https://github.com/finos/FDC3
- **Reference** — https://fdc3.finos.org/docs/app-directory/overview

## Other FDC3 APIs (5)

- [FDC3 Desktop Agent API](https://apis.io/apis/fdc3/desktop-agent-api/)
- [FDC3 Context Data](https://apis.io/apis/fdc3/context-data/)
- [FDC3 Intents](https://apis.io/apis/fdc3/intents/)
- [FDC3 Desktop Agent Bridging](https://apis.io/apis/fdc3/desktop-agent-bridging/)
- [FDC3 Application API](https://apis.io/apis/fdc3/fdc3-application-api/)

## Tags

App Directory, Application Registry, REST API, Financial-Services, Open Standard

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fdc3/app-directory-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fdc3/.