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Method Opal is the single embeddable UI component that provides enhanced financial connectivity and user experience. Opal serves as a modern replacement for Method Elements, offering improved performance, better customization, and advanced features for integrating Method’s API into your application.

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Authentication

All Opal endpoints require authentication using your Method API key. 
curl https://production.methodfi.com/opal/token \
  -H "Method-Version: 2025-07-04" \
  -H "Authorization: Bearer sk_WyZEWVfTcH7GqmPzUPk65Vjc"

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Response:

{
  "success": true,
  "data": {
    "token": "otkn_THpBacqVBBrDkfqUf9htjm4QWAEJLY9a",
    "valid_until": "2025-05-08T22:21:40.312Z",
    "session_id": "osess_zde3mW34pEHqV"
  },
  "message": null
}
Refer to the Create Token section for more info on what properties can be passed in and how modes work.

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Sessions

Sessions allow you to resume a user’s journey through Opal, while maintaining the user’s data and progress. Sessions are long-lived stateful connections that allows a user to leave and resume their journey through Opal while maintaining the user’s data and progress. Tokens are short-lived identifiers that initialize the Opal flow. See Opal Sessions for more information.

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Environments

Opal can be launched from all Method environments:
EnvironmentOpal URL
Developmenthttps://opal.development.methodfi.com
Sandboxhttps://opal.sandbox.methodfi.com
Productionhttps://opal.production.methodfi.com
Or, launch Opal from your app using one of our libraries.
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