# Upload evidence file

`POST /accounts/{accountID}/disputes/{disputeID}/evidence-file`

API version: `v2026.10.00`. Send `X-Moov-Version: v2026.10.00` to get the behavior described here.

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Uploads a file as evidence for a dispute. 

Read our [disputes guide](https://docs.moov.io/guides/money-movement/accept-payments/card-acceptance/disputes/) to learn more.

To access this endpoint using an [access token](https://docs.moov.io/api/authentication/access-tokens/) 
you'll need to specify the `/accounts/{accountID}/transfers.write` scope.

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `X-Moov-Version` | header | string |  | Set this header to v2026.10.00 to use the API described in this specification. When omitted, the server defaults to v2024.01.00, the earliest supported version, which may not match the behavior documented here. An unrecognized well-formed version uses the latest supported version that is not newer than the requested version, when one exists. For example, `v2026.08.00` uses `v2026.07.00`. A malformed value, such as `2022`, returns a `404` response. Values: `v2026.10.00`. |
| `accountID` | path | string | Yes |  |
| `disputeID` | path | string | Yes |  |

## Request body

Content type: `multipart/form-data`

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `file` | string (binary) | Yes | The file to upload as evidence. Valid types are [jpeg, tiff, pdf] with a limit of 4MB per file. The `Content-Type` header for this form part must be one of the following: - `image/jpeg` - `image/tiff` - `application/pdf` |
| `evidenceType` | string | Yes | Values: `receipt`, `proof-of-delivery`, `cancelation-policy`, `terms-of-service`, `customer-communication`, `generic-evidence`, `cover-letter`, `other`. |

## Response 201

The resource was successfully created.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `evidenceID` | string | Yes | The ID of the evidence. |
| `disputeID` | string | Yes | The ID of the dispute the evidence is associated with. |
| `filename` | string | Yes | The name of the evidence file. |
| `mimeType` | string | Yes | The MIME type of the evidence file. |
| `size` | integer (int64) | Yes | The size of the evidence file. |
| `evidenceType` | string | Yes | Values: `receipt`, `proof-of-delivery`, `cancelation-policy`, `terms-of-service`, `customer-communication`, `generic-evidence`, `cover-letter`, `other`. |
| `createdOn` | string (date-time) | Yes | The date and time the evidence was uploaded. |

## Errors

| Status | Meaning |
| --- | --- |
| 400 | The server could not understand the request due to invalid syntax. |
| 401 | The request contained missing or expired authentication. |
| 403 | The user is not authorized to make the request. |
| 404 | The requested resource was not found. |
| 409 | The request conflicted with the current state of the target resource. |
| 422 | The request was well-formed, but the contents failed validation. Check the request for missing or invalid fields. |
| 429 | Request was refused due to rate limiting. |
| 500 | The request failed due to an unexpected error. |
| 504 | The request failed because a downstream service failed to respond. |

## Examples

### cURL

```bash
curl -X POST "https://api.moov.io/accounts/{accountID}/disputes/{disputeID}/evidence-file" \
  -H "Authorization: Bearer {token}" \
  -H "X-Moov-Version: v2026.10.00" \
  -F "file=@/path/to/file" \
  -F "evidenceType=receipt"
```

### Typescript (SDK)

```typescript
import { Moov } from "@moovio/sdk";
import { openAsBlob } from "node:fs";

const moov = new Moov({
  security: {
    username: "",
    password: "",
  },
});

async function run() {
  const result = await moov.disputes.uploadEvidenceFile({
    accountID: "c09fd2f8-75fb-4ed9-be03-f8565d3ddc67",
    disputeID: "ad27f84d-00b1-4db0-8cf5-be001d71251d",
    createEvidenceFileMultiPart: {
      file: await openAsBlob("example.file"),
      evidenceType: "cancelation-policy",
    },
  });

  console.log(result);
}

run();
```

Full reference with SDK examples in every language: https://docs.moov.io/api/v2026.10.00/money-movement/disputes/post-file/