# Payment link for an application

`get_payment_link`

- Read-only

Builds the panel link that opens the payment screen for one of this student’s unpaid applications, with the amount owed. Nothing is charged and no payment session is opened — the person pays in the panel. An application that is already paid, or that has no fee, is refused rather than linked.

- **For**: Students
- **Needs**: Read access (`mcp:read`)
- **What it changes**: **Read-only.** It only reads. Nothing changes.

## Inputs

- `brand`string

  Which olympiad this is about. Required unless the connection covers exactly one, in which case that one is used.

  one of`coding``gmath``hilingua``neo``stem`
- `application_id`stringrequired

  The application_id from list_my_exams.

  pattern`^[a-f0-9]{24}$`min length`24`max length`24`

The server refuses a call that carries any field not listed here, and says which one.

## Answers instead of a result

What the tool says when it cannot do what was asked, and what to do about it.

- **`not_connected`**
- **`insufficient_scope`**
- **`rate_limited`**
- **`writes_disabled`**
- **`temporarily_unavailable`**
- **`upstream_error`**
- **`brand_not_allowed`**
- **`role_required`**
- **`tenant_account_missing`**
- **`not_found`**
- **`payment_required`**
- **`not_allowed_here`**