Welcome

This documentation contains everything you need to build and launch your FDX-aligned API. It includes:

• An onboarding guide covering the end-to-end integration journey, from setup through post-launch
• A checklist of all the steps that must be completed during each stage of development
• A visual walkthrough of the experience your customers will have once Plaid is fully integrated to your FDX-aligned API
• An in-depth explanation of the OAuth-compliant authentication process, including FDX Explorer, which provides an interactive demo of the full OAuth flow and Core Exchange API calls
• Example requests you can send to the mock server to get familiar with FDX data payloads
• An API reference with sample requests, responses, and required fields for all FDX-aligned spec endpoints

Core Exchange is Plaid's free, fully FDX-compliant API specification scoped to the data models and endpoints that power Plaid downstream products. It includes developer documentation, tooling in the Data Partner Dashboard, and dedicated support from the Plaid team.

For more details, see the onboarding guide.

Permissions Manager gives data providers the tools to gain visibility into the authorization details for connections their customers have made via Plaid, build a consent portal that enables customers to manage their connections, and receive real-time alerts.

For more details, see Permissions & App Directory.

App Directory gives data providers insights about the thousands of apps on Plaid's network that their customers have connected to, including categories and number of connections. App Directory is FDX-aligned and available via both the no-code Dashboard and APIs.

For more details, see Permissions & App Directory.

When you build your API with Plaid, your institution becomes available to Plaid-powered applications. If your institution is not already supported in Plaid Link, it will appear once your API is validated and launched. If your institution is already supported, API connectivity generally leads to better conversion and longer-lasting connections for your end users.

Building your FDX-aligned API with Plaid helps your organization align with industry standards for consumer-authorized data sharing.

Plaid has established security and privacy processes to help keep your customers' data secure, including TLS 1.2+ enforcement, mTLS support, IP allowlisting, and OAuth with PKCE for public clients. For more details, see Security best practices and the Plaid Security Portal.