---
title: "Sign a message with a delegated waas account"
method: POST
path: "/environments/{environmentId}/waas/{walletId}/delegatedAccess/signMessage"
tags: ["Waas"]
---

# Sign a message with a delegated waas account

`POST /environments/{environmentId}/waas/{walletId}/delegatedAccess/signMessage`

## Path parameters

- `environmentId` string, required
- `walletId` string, required

## Request body

- WaasDelegateSignMessageRequest
  - `message` string, required — A string with a max length of 16384 characters
  - `isFormatted` boolean
  - `roomId` string

## Response `200`

Successfully created a room for delegated signing message ceremony

- OpenRoomResponse
  - `roomId` string, required
  - `serverKeygenIds` NonEmptyBase58StringWith100MaxLength[]
  - `newServerKeygenIds` NonEmptyBase58StringWith100MaxLength[]
  - `walletId` string

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `500` — Internal Server Error

---

[API](https://skmtc.net/dynamic/apis/dashboard-api.md) · [All operations](https://skmtc.net/dynamic/apis/dashboard-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/dynamic/dashboard-api/revisions/aac826315d90/schema)