# The evidence for one payment

`GET /payments/{id}/authorisation` · Skerry · Authorisation evidence

The evidence for one payment: the mandate's text, hash and summary, the consent evidence, the approval with each decision and who made it, the agent and the agents it was delegated from, how the request was authenticated, and the audit entries about it.

- Scope: audit:read
- Moves money: no
- Idempotency: none
- Untrusted: mandate.text, mandate.summary, consent.subject, approval.decisions, audit

## Parameters

- `id` (path, required), string

## Responses

- `200`: Success.
- `202`: requires_approval — Not an error: the operation is held for a person. The body names the approval.
- `400`: price_below_minimum — The price is below the smallest single payment for a method (`detail.method`, `detail.minimum`), or has a part of a cent. Set `credit_only`, raise the price, or drop the method.
- `401`: dpop_invalid — The token is bound to a key and the DPoP proof was missing, wrong for this request, or already used.
- `402`: payment_failed — The payer's bank or card refused. `detail.reason` says why in plain terms.
- `403`: agent_payment_over_max — The merchant asks for more than `max_amount`. Nothing was signed. `detail.asked_minor` is the lowest price asked, in US cents.
- `404`: not_found — No such object in this project — including one that belongs to somebody else.
- `409`: token_not_issued — A delegated payment token could not be issued ready to use, for instance because the payer would have to act. Nothing was sent to the merchant.
- `429`: too_many_waiters — This key already has as many requests waiting (`?wait=`) as it may. Let one finish, or read without wait.
- `500`: internal_error — Ours. Quote the `request_id` and we can find the call.
- `502`: platform_error — A provider failed. Safe to retry with the same Idempotency-Key.
- `503`: oauth_unavailable — The authorisation server's keys could not be read, so tokens cannot be checked. API keys still work.

## Example

```sh
curl -X GET 'https://api.skerry.xyz/payments/{id}/authorisation' \
  -H 'Authorization: Bearer $KEY'
```