---
title: "Add Mcp Instance To Client"
method: POST
path: "/v1/clients/{client_id}/mcp-instances"
tags: ["v1", "protected", "clients"]
---

# Add Mcp Instance To Client

`POST /v1/clients/{client_id}/mcp-instances`

## Path parameters

- `client_id` string, uuid, required

## Request body

- McpInstanceAssociationBody
  - `id` string, required
  - `namespace_prefix` string, nullable

## Response `204`

Successful Response

## Other responses

- `422` — Validation Error

## Changes

- **2026-07-08** `8940d7f77282` — 1 info
  - endpoint added
- **2026-03-30** `e9c153221160` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/agentarea/apis/agentarea-api/changes/v1/clients/:client_id/mcp-instances/post.md)

---

[API](https://skmtc.dev/agentarea/apis/agentarea-api.md) · [All operations](https://skmtc.dev/agentarea/apis/agentarea-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/agentarea/agentarea-api/revisions/99cf61829c55/schema)