# Payment link for students’ applications

`get_students_payment_link`

- Read-only

Builds the panel link that opens this account’s payment cart with the given applications in it, so the person can pay for several students at once. Nothing is charged here and no payment session is opened. The coding olympiad’s cart takes one application at a time; every other olympiad takes up to twenty. Get the application ids from a roster tool or from add_exams_for_students.

- **For**: Teachers and partners
- **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_ids`array of stringrequired

  The application_ids to put in the cart. One only on the coding olympiad.

  min items`1`max items`20`

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`**
- **`not_allowed_here`**
- **`not_found`**