Petstore MCP Server

This is a Next.js project bootstrapped with create-next-app.

Getting Started

First, run the development server:

Open http://localhost:3000 with your browser to see the result.

Environment Variables

Set the following environment variables before running:

OpenAPI Specifications

This server hosts multiple OpenAPI specifications:

List All Available Specs

Get a Specific Spec

MCP Registry (v0.1)

MCP Registry–style APIs compatible with Consuming Registry Data and GitHub Copilot MCP registry. Data is read from registry-index.json and server.json (MCP ServerDetail schema).

Note: If serverName contains a slash (e.g. io.github.example/calculator-mcp), URL-encode it: io.github.example%2Fcalculator-mcp.

List all servers

Latest version of a server

Specific version

Adding servers

Edit registry-index.json to add { "name": "namespace/name", "version": "x.y.z" } entries. For each distinct server, ensure a corresponding server.json (or per-version file) is used by the app; the sample uses a single server.json at the project root for the default server.

Calculator APIs

Calculator Basic (Bearer Token Authentication)

Requires Authorization: Bearer <token> header where token matches CALCULATOR_BEARER_TOKEN env var.

All endpoints support multiple HTTP methods: GET, POST, PUT, PATCH, DELETE, and HEAD.

Add two numbers:

Using POST/PUT/PATCH (with JSON body):

Using GET/DELETE (with query parameters):

Using HEAD (headers only):

Response: {"result": 15}

Subtract two numbers:

Using POST/PUT/PATCH (with JSON body):

Using GET/DELETE (with query parameters):

Response: {"result": 7}

Update a value with an operation:

Using POST/PUT/PATCH (with JSON body):

Using GET/DELETE (with query parameters):

Response: {"result": 15, "previousValue": 10, "operation": "add", "operand": 5}

Supported operations: add, subtract, multiply, divide

Note:

• GET, HEAD, and DELETE methods use query parameters

• POST, PUT, and PATCH methods use JSON request body

• All methods require Bearer token authentication

Calculator OAuth (OAuth 2.0 Authentication)

Requires Authorization: Bearer <oauth-token> header with a valid OAuth token (minimum 10 characters for demo).

Multiply two numbers:

Response: {"result": 42}

Docker Deployment

Build and run with Docker:

Learn More

To learn more about Next.js, take a look at the following resources:

• Next.js Documentation - learn about Next.js features and API.

• Learn Next.js - an interactive Next.js tutorial.

You can check out the Next.js GitHub repository - your feedback and contributions are welcome!

Deploy on Vercel

The easiest way to deploy your Next.js app is to use the Vercel Platform from the creators of Next.js.

Check out our Next.js deployment documentation for more details.

Summary

Petstore - OpenAPI 3.1: This is a sample Pet Store Server based on the OpenAPI 3.1 specification.

Some useful links:

• OpenAPI Reference

• The Pet Store repository

• The source API definition for the Pet Store

For more information about the API: Find out more about Swagger

Table of Contents

• Getting Started

• Learn More

• Deploy on Vercel

• Installation

Installation

Install the MCP server as a Desktop Extension using the pre-built mcp-server.mcpb file:

Simply drag and drop the mcp-server.mcpb file onto Claude Desktop to install the extension.

The MCP bundle package includes the MCP server and all necessary configuration. Once installed, the server will be available without additional setup.

Or manually:

1. Open Cursor Settings

2. Select Tools and Integrations

3. Select New MCP Server

4. If the configuration file is empty paste the following JSON into the MCP Server Configuration:

Refer to Official Windsurf documentation for latest information

1. Open Windsurf Settings

2. Select Cascade on left side menu

3. Click on Manage MCPs. (To Manage MCPs you should be signed in with a Windsurf Account)

4. Click on View raw config to open up the mcp configuration file.

5. If the configuration file is empty paste the full json

Refer to Official VS Code documentation for latest information

1. Open Command Palette

2. Search and open MCP: Open User Configuration. This should open mcp.json file

3. If the configuration file is empty paste the full json

You need to do the following

1. Open claude Desktop

2. Open left hand side pane, then click on your Username

3. Go to Settings

4. Go to Developer tab (on the left hand side)

5. Click on Edit Config Paste the following config in the configuration

For a full list of server arguments, run: