---
title: "Call extension endpoint (PUT)"
method: PUT
path: "/api/v1/ext/{namespace}/{path}"
tags: ["extensions"]
---

# Call extension endpoint (PUT)

`PUT /api/v1/ext/{namespace}/{path}`

Proxy route for custom extension PUT endpoints. Request and response schemas are extension-defined and advertised by the tool descriptor in the capabilities response.

## Path parameters

- `namespace` string, required
- `path` string, required

## Request body

- unknown

## Response `200`

Extension-defined response.

- unknown

## Other responses

- `404` — Resource not found.
- `500` — Internal server error.

## Changes

> 16 revisions in range; 14 could not be searched.

- **2026-04-14** `182d5c8c4462` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/dotnet/apis/devflow-agent-protocol/changes/api/v1/ext/:namespace/:path/put.md)

---

[API](https://skmtc.dev/dotnet/apis/devflow-agent-protocol.md) · [All operations](https://skmtc.dev/dotnet/apis/devflow-agent-protocol/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/dotnet/devflow-agent-protocol/revisions/31dec8eed3de/schema)