---
title: "Issue a URL to link a subscriber chat identity"
method: POST
path: "/v1/integrations/channel-endpoints/link"
tags: ["Integrations"]
---

# Issue a URL to link a subscriber chat identity

`POST /v1/integrations/channel-endpoints/link`

Returns a provider-specific URL the subscriber opens to link their chat identity. The integration provider is resolved from integrationIdentifier; Telegram returns a deep link.

## Request body

- LinkChannelEndpointRequestDto
  - `integrationIdentifier` string, required — Integration identifier for the chat provider integration
  - `subscriberId` string, required — External subscriber identifier to link to their chat identity
  - `context` object
  - `contextHash` string — HMAC-SHA256 of the canonicalized `context`, signed with the tenant environment secret key (the same "Inbox with context" signing scheme). Required when the integration has HMAC validation enabled.

## Response `200`

OK

- LinkChannelEndpointResponseDto
  - `url` string, required — URL the subscriber opens to link their chat identity (OAuth URL or deep link)
  - `providerMetadata` object — Provider-specific metadata returned alongside the link URL

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `405` — Method Not Allowed
- `409` — Conflict
- `413` — Payload Too Large
- `414` — URI Too Long
- `415` — Unsupported Media Type
- `422` — Unprocessable Entity
- `429` — The client has sent too many requests in a given amount of time.
- `500` — Internal Server Error
- `503` — The server is currently unable to handle the request due to a temporary overload or scheduled maintenance, which will likely be alleviated after some delay.

---

[API](https://skmtc.net/novu/apis/deprecated-novu-api-use-openapi-json-yaml-instead.md) · [All operations](https://skmtc.net/novu/apis/deprecated-novu-api-use-openapi-json-yaml-instead/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/novu/deprecated-novu-api-use-openapi-json-yaml-instead/versions/986fe259fa85/schema)