---
title: "Invalidate Tools Cache"
method: DELETE
path: "/api/v1/mcp/tools"
tags: ["mcp"]
---

# Invalidate Tools Cache

`DELETE /api/v1/mcp/tools`

Invalidate cached MCP tools for a given server URL.

Called when a tool call fails with a stale-tools error, so subsequent
requests to GET /mcp/tools will re-fetch from the remote server.

## Query parameters

- `url` string, required
- `oauth_provider_id` string, nullable
- `ls_user_id` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/langchain-ai/apis/langsmith.md) · [All operations](https://skmtc.net/langchain-ai/apis/langsmith/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/langchain-ai/langsmith/revisions/a0acb3a6a101/schema)