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134 lines
4.5 KiB
Markdown
134 lines
4.5 KiB
Markdown
# Open MCP Auth Proxy
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The Open MCP Auth Proxy is a lightweight proxy designed to sit in front of MCP servers and enforce authorization in compliance with the [Model Context Protocol authorization](https://spec.modelcontextprotocol.io/specification/2025-03-26/basic/authorization/) requirements. It intercepts incoming requests, validates tokens, and offloads authentication and authorization to an OAuth-compliant Identity Provider.
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## **Setup and Installation**
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### **Prerequisites**
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* Go 1.20 or higher
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* A running MCP server (SSE transport supported)
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* An MCP client that supports MCP authorization
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### **Installation**
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```bash
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git clone https://github.com/wso2/open-mcp-auth-proxy
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cd open-mcp-auth-proxy
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go get github.com/golang-jwt/jwt/v4
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go get gopkg.in/yaml.v2
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go build -o openmcpauthproxy ./cmd/proxy
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```
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## Using Open MCP Auth Proxy
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### Quick Start
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Allows you to just enable authentication and authorization for your MCP server with the preconfigured auth provider powered by Asgardeo.
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If you don’t have an MCP server, follow the instructions given here to start your own MCP server for testing purposes.
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1. Navigate to `resources` directory.
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2. Initialize a virtual environment.
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```bash
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python3 -m venv .venv
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```
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3. Activate virtual environment.
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```bash
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source .venv/bin/activate
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```
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4. Install dependencies.
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```
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pip3 install -r requirements.txt
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```
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5. Start the server.
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```bash
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python3 echo_server.py
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```
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#### Configure the Auth Proxy
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Update the following parameters in `config.yaml`.
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### demo mode configuration:
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```yaml
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mcp_server_base_url: "http://localhost:8000" # URL of your MCP server
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listen_port: 8080 # Address where the proxy will listen
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```
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#### Start the Auth Proxy
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```bash
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./openmcpauthproxy --demo
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```
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The `--demo` flag enables a demonstration mode with pre-configured authentication and authorization with a sandbox powered by [Asgardeo](https://asgardeo.io/).
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#### Connect Using an MCP Client
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You can use this fork of the [MCP Inspector](https://github.com/shashimalcse/inspector) to test the connection and try out the complete authorization flow. (This is a temporary fork with fixes for authentication [issues](https://github.com/modelcontextprotocol/typescript-sdk/issues/257) in the original implementation)
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### Use with Asgardeo
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Enable authorization for the MCP server through your own Asgardeo organization
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1. [Register]([url](https://asgardeo.io/signup)) and create an organization in Asgardeo
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2. Now, you need to authorize the OpenMCPAuthProxy to allow dynamically registering MCP Clients as applications in your organization. To do that,
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1. Create an [M2M application](https://wso2.com/asgardeo/docs/guides/applications/register-machine-to-machine-app/)
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1. [Authorize this application](https://wso2.com/asgardeo/docs/guides/applications/register-machine-to-machine-app/#authorize-the-api-resources-for-the-app) to invoke “Application Management API” with the `internal_application_mgt_create` scope.
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2. Note the **Client ID** and **Client secret** of this application. This is required by the auth proxy
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#### Configure the Auth Proxy
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Create a configuration file config.yaml with the following parameters:
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```yaml
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mcp_server_base_url: "http://localhost:8000" # URL of your MCP server
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listen_port: 8080 # Address where the proxy will listen
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asgardeo:
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org_name: "<org_name>" # Your Asgardeo org name
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client_id: "<client_id>" # Client ID of the M2M app
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client_secret: "<client_secret>" # Client secret of the M2M app
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```
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#### Start the Auth Proxy
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```bash
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./openmcpauthproxy --asgardeo
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```
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### Use with any standard OAuth Server
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Enable authorization for the MCP server with a compliant OAuth server
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#### Configuration
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Create a configuration file config.yaml with the following parameters:
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```yaml
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mcp_server_base_url: "http://localhost:8000" # URL of your MCP server
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listen_port: 8080 # Address where the proxy will listen
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```
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**TODO**: Update the configs for a standard OAuth Server.
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#### Start the Auth Proxy
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```bash
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./openmcpauthproxy
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```
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#### Integrating with existing OAuth Providers
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- [Auth0](docs/Auth0.md) - Enable authorization for the MCP server through your Auth0 organization.
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