---
title: "Get registered MCP tool"
method: GET
path: "/well-known/mcp-tools/{groupId}/{artifactId}"
tags: ["WellKnown"]
---

# Get registered MCP tool

`GET /well-known/mcp-tools/{groupId}/{artifactId}`

## Request

- The document declares no server URL.
- Auth: none declared

## Query parameters

- `version` string

## Response `200`

MCP tool JSON.

## Other responses

- `401`: Common response for all operations that can return a `401` error indicating authentication is required.
- `403`: Common response for all operations that can return a `403` error indicating the user is authenticated but not authorized.
- `404`: Common response for all operations that can return a `404` error.
- `500`: Common response for all operations that can fail with an unexpected server error.

## Changes

- **2026-10-31** `ff9684af2aad`: 20 info
  - added the optional property `ruleViolation/causes/items/code` to the response with the `401` status
  - added the optional property `ruleViolation/causes/items/code` to the response with the `403` status
  - added the optional property `ruleViolation/causes/items/code` to the response with the `404` status
  - added the optional property `ruleViolation/causes/items/code` to the response with the `500` status
  - …16 more
- **2026-10-29** `f17f5df4e79c`: 4 info
  - added the optional property `ruleViolation` to the response with the `401` status
  - added the optional property `ruleViolation` to the response with the `403` status
  - added the optional property `ruleViolation` to the response with the `404` status
  - added the optional property `ruleViolation` to the response with the `500` status
- **2026-07-30** `aabaa7968ec3`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3/changes/well-known/mcp-tools/:groupId/:artifactId/get.md)

---

[API](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3.md) - [All operations](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3/llms.txt) - [OpenAPI document](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3/revisions/ff9684af2aad?raw)