---
title: "Changes to Create a link session for a toolkit in a tool router session"
method: POST
path: "/api/v3/tool_router/session/{session_id}/link"
---

# Changes to Create a link session for a toolkit in a tool router session

`POST /api/v3/tool_router/session/{session_id}/link`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 6 of 52 revisions.

- **2026-09-27** `06e6673fee67`: 4 info
- **2026-08-07** `df7478fc8f3b`: 1 info
- **2026-07-12** `73b05c1e5119`: 4 info
- **2026-05-03** `afeba73724e5`: 1 info
- **2026-03-20** `1a01eea79bb9`: 1 info
- **2026-02-12** `881fa7b9eb11`: 5 info

## Changes

- **2026-09-27** `06e6673fee67`: 4 info
  - added the non-success response with the status `408`
  - added the non-success response with the status `409`
  - added the non-success response with the status `422`
  - added the non-success response with the status `501`
- **2026-08-07** `df7478fc8f3b`: 1 info
  - added the non-success response with the status `429`
- **2026-07-12** `73b05c1e5119`: 4 info
  - the endpoint scheme security `CookieAuth` was removed from the API
  - the endpoint scheme security `UserApiKeyAuth` was removed from the API
  - added the new optional request property `experimental`
  - added the optional property `experimental` to the response with the `201` status
- **2026-05-03** `afeba73724e5`: 1 info
  - added the new optional request property `alias`
- **2026-03-20** `1a01eea79bb9`: 1 info
  - the endpoint scheme security `UserApiKeyAuth` was added to the API
- **2026-02-12** `881fa7b9eb11`: 5 info
  - added the required property `error/slug` to the response with the `400` status
  - added the required property `error/slug` to the response with the `401` status
  - added the required property `error/slug` to the response with the `403` status
  - added the required property `error/slug` to the response with the `404` status
  - added the required property `error/slug` to the response with the `500` status

---

[Operation](https://skmtc.dev/composiohq/apis/composio-platform-api/docs/api/v3/tool_router/session/:session_id/link/post.md) - [API](https://skmtc.dev/composiohq/apis/composio-platform-api.md) - [Page](https://skmtc.dev/composiohq/apis/composio-platform-api/changes/api/v3/tool_router/session/:session_id/link/post)