---
title: "Create owner-bound Plaid Link authority in sandbox"
method: POST
path: "/onboarding/v3/banks/plaid/link-token"
tags: ["Onboarding"]
---

# Create owner-bound Plaid Link authority in sandbox

`POST /onboarding/v3/banks/plaid/link-token`

## Request

- Base URL: `https://api.medianfi.com/api/v1`
- URL: `https://api.medianfi.com/api/v1/onboarding/v3/banks/plaid/link-token`
- Auth: HTTP bearer

Available only when Plaid is configured for sandbox. Company and legal entity authority are derived from the authenticated onboarding flow.

## Headers

- `X-Median-App-Surface` 'qa'

## Request body

- OnboardingV3PlaidLinkTokenRequest
  - `redirectUri` string, uri, required

## Response `200`

Sandbox Link token and owner-bound callback authority

- OnboardingV3PlaidLinkTokenApiResponse
  - `success` true, required
  - `data` OnboardingV3PlaidLinkToken, required
    - `linkToken` string, required
    - `expiration` string, date-time, required
    - `authorizationState` string, required
    - `authorizationExpiresAt` string, date-time, required

## Other responses

- `400`: Onboarding request body is not valid JSON
- `401`: Authentication required
- `403`: Insufficient permissions or not a company member
- `404`: Resource not found
- `413`: Onboarding setup request exceeds the 32768-byte route limit
- `415`: Onboarding request charset or content encoding is unsupported
- `422`: Validation error
- `503`: Required sandbox provider configuration or service is unavailable

---

[API](https://skmtc.dev/medianfi/apis/median-api.md) · [All operations](https://skmtc.dev/medianfi/apis/median-api/llms.txt) · [OpenAPI document](https://skmtc.dev/medianfi/apis/median-api/revisions/20090ea32b0d?raw)