> This page is for Developer Documentation.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.benchling.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.benchling.com/_mcp/server.

# Get Enzyme by ID

GET https://{tenant_name}.benchling.com/api/v3/enzyme/{enzyme_id}

Get a single Enzyme by ID.

Reference: https://docs.benchling.com/docs/api/benchling-api/enzyme/get

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Path parameters

- `enzyme_id` (string, required) — ID of the Enzyme.

### Query parameters

- `returning` (string, optional) — Comma-separated list of top-level fields to include in each returned item. Cannot overlap with omit.
- `omit` (string, optional) — Comma-separated list of top-level fields to omit from each returned item. Cannot overlap with returning.

### Headers

- `EARLY-ACCESS` (string, optional) — Set to true to access beta operations via /api/v3.

## Response

### 200

OK

- `__typename` (string, optional)
- `cutSites` (list of CutSiteDetail, optional) — Either one (for single cutters) or two (for double cutters) cut details.
- `id` (string, optional) — Id of the Enzyme
- `isoschizomers` (string, optional) — Other enzymes in the catalog that recognize the same restriction site.
- `name` (string, optional) — The name of the Enzyme, like EcoRI.
- `restrictionSiteBases` (string, optional) — The DNA bases recognized by the Enzyme.

## Errors

### 400 Enzyme Get Request Bad Request Error

Bad Request

- `detail` (GeneralErrorDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)

### 403 Enzyme Get Request Forbidden Error

Forbidden

- `detail` (GeneralErrorDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)

### 404 Enzyme Get Request Not Found Error

Not Found

- `detail` (GeneralErrorDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)

### 429 Enzyme Get Request Too Many Requests Error

Too Many Requests

- `detail` (TooManyRequestsErrorBodyDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `invalidId` (string, optional)
- `violated-policies` (list of enum, optional) — The budget policies that rejected the request, in canonical order: `user`, `integration`, then `tenant`.
  - Allowed values: `user`, `integration`, `tenant`

### 500 Enzyme Get Request Internal Server Error

Internal Server Error

- `detail` (InternalServerErrorBodyDetail, required, nullable)
- `instance` (string, required)
- `status` (integer, required)
- `title` (string, required, nullable)
- `type` (string, required)
- `errorId` (string, optional)

## Types

### CutSiteDetail

Describes the cleavage pattern of a restriction enzyme relative to its recognition site. The position field indicates where the 5' strand is cut, while offset specifies the distance from position where the 3' strand is cut. A zero offset produces blunt ends; non-zero offsets create sticky ends (overhangs). Enzymes that cut once have a single CutSiteDetail, while rare double-cutting enzymes have two. This information is essential for predicting fragment sizes and compatible ends when designing cloning strategies.

- `__typename` (string, optional)
- `offset` (integer, optional) — Location, relative to `position`, where the 3' cut is made.
- `position` (integer, optional) — Location, relative to the restriction site bases, where the 5' cut is made.

### GeneralErrorDetail

### TooManyRequestsErrorBodyDetail

### InternalServerErrorBodyDetail

## Examples

**Response**

```json
{
  "__typename": "__typename",
  "cutSites": [
    {
      "__typename": "__typename",
      "offset": 1,
      "position": 1
    }
  ],
  "id": "id",
  "isoschizomers": "isoschizomers",
  "name": "name",
  "restrictionSiteBases": "restrictionSiteBases"
}
```

**SDK Code**

```python
import requests

url = "https://{tenant_name}.benchling.com/api/v3/enzyme/enzyme_id"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://{tenant_name}.benchling.com/api/v3/enzyme/enzyme_id';
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```