> API Reference / Functions / List functions on the branch

## GET /projects//branches//functions

Lists functions on the specified branch.

**Note**: This endpoint is currently in Beta.

### Parameters

- `project_id` (string, path, required)
  The Neon project ID
- `branch_id` (string, path, required)
  The Neon branch ID
- `cursor` (string, query, optional)
  A cursor to use in pagination. A cursor defines your place in the data list. Include `response.pagination.next` in subsequent API calls to fetch next page of the list.
- `limit` (integer, query, optional)
  Specify a value from 1 to 1000 to limit number of functions in the response

### Response (200)

```json
{
  "functions": [
    {
      "id": "myfunction",
      "slug": "myfunction",
      "name": "myfunction",
      "invocation_url": "https://br-young-forest-a5b6c7d8-myfunction.compute.c-5.us-east-2.aws.neon.tech/",
      "current_deployment": {
        "id": 4,
        "status": "completed",
        "memory_mib": 2048,
        "runtime": "nodejs24",
        "created_at": "2025-01-15T10:30:00Z"
      },
      "active_deployment": {
        "id": 4,
        "status": "completed",
        "memory_mib": 2048,
        "runtime": "nodejs24",
        "created_at": "2025-01-15T10:30:00Z"
      },
      "created_at": "2025-01-15T11:00:00Z"
    }
  ],
  "pagination": {}
}
```

### Code examples

```bash
curl "https://console.neon.tech/api/v2/projects/$PROJECT_ID/branches/$BRANCH_ID/functions" \
  -H "Authorization: Bearer $NEON_API_KEY"
```

```typescript
import { createNeonClient, raw } from '@neon/sdk';

const neon = createNeonClient({ apiKey: process.env.NEON_API_KEY });
const { data } = await raw.listProjectBranchFunctions({
  client: neon.client,
  path: {
    project_id: process.env.PROJECT_ID,
    branch_id: process.env.BRANCH_ID
  }
});
```

```bash
# neonctl
neon functions list
```

### Errors

**default**
General Error.

The request may or may not be safe to retry, depending on the HTTP method, response status code,
and whether a response was received.

- If no response is returned from the API, a network error or timeout likely occurred.
- In some cases, the request may have reached the server and been successfully processed, but the response failed to reach the client. As a result, retrying non-idempotent requests can lead to unintended results.

The following HTTP methods are considered non-idempotent: `POST`, `PATCH`, `DELETE`, and `PUT`. Retrying these methods is generally **not safe**.
The following methods are considered idempotent: `GET`, `HEAD`, and `OPTIONS`. Retrying these methods is **safe** in the event of a network error or timeout.

Any request that returns a `503 Service Unavailable` response is always safe to retry.

Any request that returns a `423 Locked` response is safe to retry. `423 Locked` indicates that the resource is temporarily locked, for example, due to another operation in progress.

- `request_id` (string, optional)
  Unique identifier for the request, useful for debugging.
  You can set this value manually by including an `X-Request-ID` header in the request. If not provided, the value will be generated automatically.

- `code` (string, required)
  Machine-readable code classifying the error type. See `message` for a human-readable explanation.
  Default: \`\`

- `message` (string, required)
  Error message

## Related pages

- [Create a trigger](./apis-sdks-reference-api-functions-create-project-branch-trigger.md)
- [Delete a custom domain from a branch](./apis-sdks-reference-api-functions-delete-project-branch-custom-domain.md)
- [Delete a function on the branch](./apis-sdks-reference-api-functions-delete-project-branch-function.md)
- [Delete a trigger](./apis-sdks-reference-api-functions-delete-project-branch-trigger.md)
- [Deploy code to a function](./apis-sdks-reference-api-functions-create-project-branch-function-deployment.md)
- [Get a trigger](./apis-sdks-reference-api-functions-get-project-branch-trigger.md)
- [Get function details](./apis-sdks-reference-api-functions-get-project-branch-function.md)
- [List the custom domains on a branch](./apis-sdks-reference-api-functions-list-project-branch-custom-domains.md)
- [List triggers on the branch](./apis-sdks-reference-api-functions-list-project-branch-triggers.md)
- [Register a custom domain on a branch](./apis-sdks-reference-api-functions-register-project-branch-custom-domain.md)

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