---
title: "Replace jail metadata"
method: PUT
path: "/jail/{ctid}/options/metadata"
tags: ["Jail"]
---

# Replace jail metadata

`PUT /jail/{ctid}/options/metadata`

## Request

- Base URL: `https://sylve.lan:8181/api`
- URL: `https://sylve.lan:8181/api/jail/{ctid}/options/metadata`
- Auth: API key in header `Authorization`

Replace the jail meta and env values after safely escaping them for jail.conf; explicit empty strings clear either value

## Path parameters

- `ctid` integer, required

## Request body

- InternalHandlersJailModifyMetadataRequest
  - `env` string, required
  - `metadata` string, required

## Response `200`

Success

- GithubComAlchemillahqSylveInternalAPIResponseAny
  - `data` unknown
  - `error` string
  - `message` string
  - `status` string

## Other responses

- `400`: Bad Request
- `401`: Unauthorized
- `403`: Forbidden
- `404`: Not Found
- `409`: Conflict
- `413`: Request Entity Too Large
- `500`: Internal Server Error

## Changes

- **2026-08-12** `9a5026bf9057`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/alchemillahq/apis/sylve-api/changes/jail/:ctid/options/metadata/put.md)

---

[API](https://skmtc.dev/alchemillahq/apis/sylve-api.md) - [All operations](https://skmtc.dev/alchemillahq/apis/sylve-api/llms.txt) - [OpenAPI document](https://skmtc.dev/alchemillahq/apis/sylve-api/revisions/9565cdd0abf5?raw)