FDC3 (Financial Desktop Connectivity and Collaboration Consortium) is an open standard hosted by FINOS for interoperability between financial desktop applications. The standard defines how applications launch other apps, share typed context data, raise and resolve intents across the financial desktop, and register themselves in an App Directory. FDC3 eliminates the need for custom bilateral agreements between software vendors and enables plug-and-play integration workflows for financial services firms. Current version is 2.2, licensed under the Community Specification License 1.0 with code released under Apache 2.0.
FDC3 publishes 2 APIs on the APIs.io network: App Directory API and Application API. Tagged areas include Financial-Services, Fintech, Desktop Interoperability, Open Standard, and FINOS.
The FDC3 catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
FDC3’s developer surface includes authentication, documentation, engineering blog, changelog, status page, and 14 more developer resources.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it
carries 10 points of the composite. It is scored from the published contracts
themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already
holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in
front of it, and the first time that check is skipped a duplicate record is created.
Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet,
not penalised by it.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/fdc3: open an issue to ask a question, or submit a pull request to add artifacts.
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The FDC3 Desktop Agent API is the primary interface for application interoperability on the financial desktop. It provides a JavaScript/TypeScript API that applications use to o...
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 ...
FDC3 Context Data defines a standard set of typed data structures used to carry information between financial applications when broadcasting or raising intents. Context types in...
FDC3 Intents are standardized verbs that applications use to request functionality from other applications on the financial desktop. Standard intents include ViewChart, ViewQuot...
FDC3 Desktop Agent Bridging (DAB) is a wire protocol that enables multiple Desktop Agent implementations to interoperate, allowing applications running under different Desktop A...
aid: fdc3
name: FDC3
description: FDC3 (Financial Desktop Connectivity and Collaboration Consortium) is an open standard hosted by FINOS for interoperability
between financial desktop applications. The standard defines how applications launch other apps, share typed context data,
raise and resolve intents across the financial desktop, and register themselves in an App Directory. FDC3 eliminates the
need for custom bilateral agreements between software vendors and enables plug-and-play integration workflows for financial
services firms. Current version is 2.2, licensed under the Community Specification License 1.0 with code released under
Apache 2.0.
type: Index
deliveryModel:
model: unknown
open_source: unknown
commercial: true
callable_host: false
label: Delivery model not determined — needs a product licence on record
confidence: low
source:
- openapi
- pricing
- repository-unlicensed
generated: '2026-08-28'
method: derived
accessModel:
pricing: freemium
onboarding: self-serve
trial: false
try_now: true
public: false
label: Freemium · Self-serve signup
confidence: medium
source:
- plans
- authentication
- security
generated: '2026-09-03'
method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fdc3.png
tags:
- Financial-Services
- Fintech
- Desktop Interoperability
- Open Standard
- FINOS
- Context Sharing
- Intents
tags_raw:
- Financial Services
- Fintech
- Desktop Interoperability
- Open Standard
- FINOS
- Context Sharing
- Intents
created: '2026-06-13'
modified: '2026-06-13'
url: https://raw.githubusercontent.com/api-evangelist/fdc3/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: fdc3:desktop-agent-api
name: FDC3 Desktop Agent API
description: The FDC3 Desktop Agent API is the primary interface for application interoperability on the financial desktop.
It provides a JavaScript/TypeScript API that applications use to open other applications, raise intents to request functionality
from peer apps, broadcast typed context data on channels, listen for incoming context and intents, discover available
applications and their capabilities, and create private two-party communication channels. Desktop Agents implement this
API and expose it to the applications they host.
humanURL: https://fdc3.finos.org/docs/api/spec
baseURL: https://fdc3.finos.org
tags:
- Desktop Agent
- Intents
- Context Sharing
- Channels
- Financial-Services
- Open Standard
tags_raw:
- Desktop Agent
- Intents
- Context Sharing
- Channels
- Financial Services
- Open Standard
properties:
- type: Documentation
url: https://fdc3.finos.org/docs/api/spec
- type: Reference
url: https://fdc3.finos.org/docs/api/ref/DesktopAgent
- type: GitHubRepository
url: https://github.com/finos/FDC3
- type: TypeScriptSDK
url: https://www.npmjs.com/package/@finos/fdc3
- type: ChangeLog
url: https://github.com/finos/FDC3/blob/main/CHANGELOG.md
- type: OpenSource
url: https://github.com/finos/FDC3/blob/main/LICENSE.md
- aid: fdc3:app-directory-api
name: FDC3 App Directory API
description: 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.
humanURL: https://fdc3.finos.org/docs/app-directory/spec
baseURL: https://appd.example.com
tags:
- App Directory
- Application Registry
- REST API
- Financial-Services
- Open Standard
tags_raw:
- App Directory
- Application Registry
- REST API
- Financial Services
- Open Standard
properties:
- type: Documentation
url: https://fdc3.finos.org/docs/app-directory/spec
- type: OpenAPISpec
url: https://fdc3.finos.org/schemas/2.2/app-directory.html
- type: JSONSchema
url: https://fdc3.finos.org/schemas/2.2/appd.schema.json
- type: GitHubRepository
url: https://github.com/finos/FDC3
- type: Reference
url: https://fdc3.finos.org/docs/app-directory/overview
- aid: fdc3:context-data
name: FDC3 Context Data
description: FDC3 Context Data defines a standard set of typed data structures used to carry information between financial
applications when broadcasting or raising intents. Context types include instruments, positions, portfolios, contacts,
organizations, orders, charts, country, currency, date range, email, and more. Each context type has a JSON schema definition.
Applications share and receive these typed objects through the Desktop Agent API channels and intent resolution, enabling
interoperability without custom data mapping.
humanURL: https://fdc3.finos.org/docs/context/spec
baseURL: https://fdc3.finos.org
tags:
- Context Data
- JSON-Schema
- Financial Data
- Instruments
- Open Standard
tags_raw:
- Context Data
- JSON Schema
- Financial Data
- Instruments
- Open Standard
properties:
- type: Documentation
url: https://fdc3.finos.org/docs/context/spec
- type: JSONSchema
url: https://fdc3.finos.org/schemas/2.2/context/
- type: Reference
url: https://fdc3.finos.org/docs/context/ref/Instrument
- type: GitHubRepository
url: https://github.com/finos/FDC3
- aid: fdc3:intents
name: FDC3 Intents
description: FDC3 Intents are standardized verbs that applications use to request functionality from other applications
on the financial desktop. Standard intents include ViewChart, ViewQuote, ViewNews, ViewAnalysis, ViewInstrument, ViewHoldings,
ViewOrders, ViewResearch, ViewProfile, ViewInteractions, ViewMessages, ViewChat, StartCall, StartChat, StartEmail, CreateInteraction,
and CreateOrUpdateProfile. Applications declare which intents they handle in their App Directory entry, and the Desktop
Agent routes intent requests to appropriate handler apps.
humanURL: https://fdc3.finos.org/docs/intents/spec
baseURL: https://fdc3.finos.org
tags:
- Intents
- Interoperability
- Financial-Services
- Workflows
- Open Standard
tags_raw:
- Intents
- Interoperability
- Financial Services
- Workflow
- Open Standard
properties:
- type: Documentation
url: https://fdc3.finos.org/docs/intents/spec
- type: Reference
url: https://fdc3.finos.org/docs/intents/ref/ViewChart
- type: GitHubRepository
url: https://github.com/finos/FDC3
- aid: fdc3:desktop-agent-bridging
name: FDC3 Desktop Agent Bridging
description: FDC3 Desktop Agent Bridging (DAB) is a wire protocol that enables multiple Desktop Agent implementations to
interoperate, allowing applications running under different Desktop Agents to share context and raise intents with each
other. The bridging specification defines a WebSocket-based protocol for agent-to-agent communication, enabling cross-agent
context broadcasting and cross-agent intent resolution within the same desktop environment or across network boundaries.
humanURL: https://fdc3.finos.org/docs/agent-bridging/spec
baseURL: https://fdc3.finos.org
tags:
- Desktop Agent Bridging
- WebSocket
- Interoperability
- Financial-Services
- Open Standard
tags_raw:
- Desktop Agent Bridging
- WebSocket
- Interoperability
- Financial Services
- Open Standard
properties:
- type: Documentation
url: https://fdc3.finos.org/docs/agent-bridging/spec
- type: GitHubRepository
url: https://github.com/finos/FDC3
- aid: fdc3:fdc3-application-api
name: FDC3 Application API
description: The Application API from FDC3 — 5 operation(s) for application.
humanURL: https://fdc3.finos.org/docs/api/spec
baseURL: https://fdc3.finos.org
tags:
- Application
properties:
- type: OpenAPI
url: openapi/fdc3-application-api-openapi.yml
common:
- type: IssueTracker
url: https://github.com/finos/FDC3/issues
- type: SecurityPolicy
url: https://github.com/finos/FDC3/blob/main/SECURITY.md
- type: CodeOfConduct
url: https://github.com/finos/FDC3/blob/main/CODE_OF_CONDUCT.md
- type: AgenticAccess
url: agentic-access/fdc3-agentic-access.yml
- type: DomainSecurity
url: security/fdc3-domain-security.yml
- type: Authentication
url: authentication/fdc3-authentication.yml
- type: Website
url: https://fdc3.finos.org
- type: Documentation
url: https://fdc3.finos.org/docs/fdc3-intro
- type: GitHubOrg
url: https://github.com/finos
- type: GitHubRepository
url: https://github.com/finos/FDC3
- type: Slack
url: https://finos-lf.slack.com/messages/fdc3
- type: MailingList
url: mailto:fdc3+subscribe@finos.org
- type: Community
url: https://www.finos.org/community
- type: Blog
url: https://www.finos.org/blog
- type: ChangeLog
url: https://github.com/finos/FDC3/blob/main/CHANGELOG.md
- type: License
url: https://github.com/finos/FDC3/blob/main/LICENSE.md
- type: TermsOfService
url: https://github.com/finos/FDC3/blob/main/LICENSE.md
- type: Contributing
url: https://github.com/finos/FDC3/blob/main/CONTRIBUTING.md
- type: Status
url: https://github.com/finos/FDC3/releases
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
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