Big docs tidy up in preparation for launch (#364)

## Motivation and Context
Docs currently don't have very clear organisation, and don't explain
core flows.

This fixes #89 (although we still might want to push these to
`https://modelcontextprotocol.io/docs/`), based on the plan there.

One minor change from that plan is that I merged tutorials and guides,
because they ended up basically being duplicates which I thought would
be annoying for us to keep in sync. Additionally in the Diátaxis
framework, tutorials and guides are separated by whether they are
focused on acquisition of skills (e.g. in a learning environment) or
application of skills (e.g. in a work environment). I expect the
registry to be something that will be used occasionally in a work
environment, rather than a fundamental 'learnable' skill so I think it's
reasonable not to have tutorials and fold these into guides.

## How Has This Been Tested?
- Read through all these updated docs
- Unit and integration tests (that previously used examples.md and use
the schema) working
- Ran `npx markdown-link-check .` to check all the links work

## Breaking Changes
Links to old docs will break, but I don't think there are any. All
internal links have been checked and updated.

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Documentation update
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# Automate Publishing with GitHub Actions
Set up automated MCP server publishing using GitHub Actions.
## What You'll Learn
By the end of this tutorial, you'll have:
- A GitHub Actions workflow that automatically publishes your server
- Understanding of GitHub OIDC authentication
- Knowledge of best practices for automated publishing
- Working examples for Node.js, Python, and Docker projects
## Prerequisites
- Already published your server manually (complete [Publishing Tutorial](publish-server.md) first)
- GitHub repository with your MCP server code
- Basic understanding of CI/CD concepts
- 20-30 minutes
## GitHub Actions Setup
### Step 1: Create Workflow File
Create `.github/workflows/publish-mcp.yml` in your repository:
```yaml
name: Publish to MCP Registry
on:
push:
tags: ['v*'] # Triggers on version tags like v1.0.0
jobs:
publish:
runs-on: ubuntu-latest
permissions:
id-token: write # Required for OIDC authentication
contents: read
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Setup Node.js # Adjust for your language
uses: actions/setup-node@v4
with:
node-version: '20'
registry-url: 'https://registry.npmjs.org'
- name: Install dependencies
run: npm ci
- name: Run tests
run: npm test
- name: Build package
run: npm run build
- name: Publish to npm
run: npm publish
env:
NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
- name: Install MCP Publisher
run: |
# Build publisher from source (requires Go)
git clone https://github.com/modelcontextprotocol/registry publisher-repo
cd publisher-repo
make publisher
cp cmd/publisher/bin/mcp-publisher ../mcp-publisher
cd ..
chmod +x mcp-publisher
- name: Login to MCP Registry
run: ./mcp-publisher login github-oidc
- name: Publish to MCP Registry
run: ./mcp-publisher publish
```
### Step 2: Configure Secrets
For npm publishing, add your NPM token to repository secrets:
1. Go to repository Settings → Secrets and variables → Actions
2. Add `NPM_TOKEN` with your npm access token
**Note:** GitHub OIDC authentication requires no additional secrets for MCP Registry publishing.
### Step 3: Tag and Release
Create a version tag to trigger the workflow:
```bash
git tag v1.0.0
git push origin v1.0.0
```
The workflow will:
1. Run tests
2. Build your package
3. Publish to npm
4. Automatically authenticate with the MCP Registry
5. Publish updated server.json
## Authentication Methods by CI Platform
### GitHub Actions - OIDC (Recommended)
```yaml
- name: Login to MCP Registry
run: mcp-publisher login github-oidc
```
**Advantages:**
- No secrets to manage
- Automatically scoped to your repository
- Most secure option
### GitHub Actions - Personal Access Token
```yaml
- name: Login to MCP Registry
run: mcp-publisher login github --token ${{ secrets.GITHUB_TOKEN }}
env:
GITHUB_TOKEN: ${{ secrets.MCP_GITHUB_TOKEN }}
```
Add `MCP_GITHUB_TOKEN` secret with a GitHub PAT that has repo access.
### DNS Authentication (Any CI)
For custom domain namespaces (`com.yourcompany/*`):
```yaml
- name: Login to MCP Registry
run: |
echo "${{ secrets.MCP_PRIVATE_KEY }}" > key.pem
mcp-publisher login dns --domain yourcompany.com --private-key-file key.pem
```
Add your Ed25519 private key as `MCP_PRIVATE_KEY` secret.
## Language-Specific Examples
### Python Project
```yaml
name: Publish Python MCP Server
on:
push:
tags: ['v*']
jobs:
publish:
runs-on: ubuntu-latest
permissions:
id-token: write
contents: read
steps:
- uses: actions/checkout@v4
- name: Setup Python
uses: actions/setup-python@v4
with:
python-version: '3.11'
- name: Install Poetry
run: pipx install poetry
- name: Build package
run: poetry build
- name: Publish to PyPI
run: poetry publish
env:
POETRY_PYPI_TOKEN_PYPI: ${{ secrets.PYPI_TOKEN }}
- name: Install MCP Publisher
run: |
git clone https://github.com/modelcontextprotocol/registry publisher-repo
cd publisher-repo && make publisher && cd ..
cp publisher-repo/cmd/publisher/bin/mcp-publisher mcp-publisher
- name: Publish to MCP Registry
run: |
./mcp-publisher login github-oidc
./mcp-publisher publish
```
### Docker Project
```yaml
name: Publish Docker MCP Server
on:
push:
tags: ['v*']
jobs:
publish:
runs-on: ubuntu-latest
permissions:
id-token: write
contents: read
steps:
- uses: actions/checkout@v4
- name: Setup Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Login to Docker Hub
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
- name: Extract version
id: version
run: echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
- name: Build and push
uses: docker/build-push-action@v5
with:
context: .
push: true
tags: yourname/your-server:${{ steps.version.outputs.version }}
labels: |
io.modelcontextprotocol.server.name=io.github.yourname/your-server
- name: Install MCP Publisher
run: |
git clone https://github.com/modelcontextprotocol/registry publisher-repo
cd publisher-repo && make publisher && cd ..
cp publisher-repo/cmd/publisher/bin/mcp-publisher mcp-publisher
- name: Publish to MCP Registry
run: |
./mcp-publisher login github-oidc
./mcp-publisher publish
```
## Best Practices
### 1. Version Alignment
Keep your package version and server.json version in sync:
```yaml
- name: Update server.json version
run: |
VERSION=${GITHUB_REF#refs/tags/v}
jq --arg version "$VERSION" '.version_detail.version = $version' server.json > tmp.json
mv tmp.json server.json
```
### 2. Conditional Publishing
Only publish to registry after package publishing succeeds:
```yaml
- name: Publish to npm
run: npm publish
id: npm-publish
- name: Publish to MCP Registry
if: steps.npm-publish.outcome == 'success'
run: ./mcp-publisher publish
```
### 3. Test Before Publishing
Include validation in your workflow:
```yaml
- name: Validate server.json
run: |
# Validate against schema
curl -s https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json | \
jq . > schema.json
npx ajv-cli validate -s schema.json -d server.json
# Test with publisher
./mcp-publisher init --validate-only
```
### 4. Notification Setup
Get notified of publishing status:
```yaml
- name: Notify on success
if: success()
run: |
curl -X POST "${{ secrets.WEBHOOK_URL }}" \
-H "Content-Type: application/json" \
-d '{"text": "✅ MCP server ${{ github.repository }} published successfully"}'
- name: Notify on failure
if: failure()
run: |
curl -X POST "${{ secrets.WEBHOOK_URL }}" \
-H "Content-Type: application/json" \
-d '{"text": "❌ MCP server ${{ github.repository }} publishing failed"}'
```
## Troubleshooting
**"Publisher binary not found"** - Ensure you download the correct binary for your CI platform (linux/mac/windows).
**"Authentication failed"** - For GitHub OIDC, verify `id-token: write` permission is set. For other methods, check secret configuration.
**"Package validation failed"** - Ensure your package was published successfully before MCP Registry publishing runs.
**"Version already exists"** - Each server.json version must be unique. Consider using build numbers: `1.0.0-build.123`.
## What You've Accomplished
You now have automated MCP server publishing that:
- Triggers on version tags
- Runs tests before publishing
- Publishes to package registry first
- Automatically publishes to MCP Registry
- Handles authentication securely
- Provides failure notifications
Your MCP server publishing is now fully automated - just tag a release and everything happens automatically!

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# Publish Your MCP Server
Complete guide to publishing an MCP server to the registry.
## What You'll Learn
By the end of this tutorial, you'll have:
- Created a server.json file for your MCP server
- Authenticated with the registry
- Successfully published your server
- Verified your server appears in the registry
## Prerequisites
- An MCP server you've already built ([follow this guide if you don't have one already](https://modelcontextprotocol.io/quickstart/server))
- Your server published to a package registry (npm, PyPI, Docker Hub, etc.)
## Step 1: Install the Publisher CLI
<!-- TODO: update once #358 solved -->
Download and build the MCP publisher tool:
```bash
# Clone the registry repository (requires Go 1.24+)
git clone https://github.com/modelcontextprotocol/registry
cd registry
make publisher
# The binary will be at cmd/publisher/bin/mcp-publisher
export PATH=$PATH:$(pwd)/cmd/publisher/bin
```
## Step 2: Initialize Your server.json
Navigate to your server's directory and create a template:
```bash
cd /path/to/your/mcp-server
mcp-publisher init
```
This creates a `server.json` with auto-detected values. You'll see something like:
```json
{
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json",
"name": "io.github.yourname/your-server",
"description": "A description of your MCP server",
"version_detail": {
"version": "1.0.0"
},
"packages": [
{
"registry_type": "npm",
"identifier": "your-package-name",
"version": "1.0.0"
}
]
}
```
## Step 3: Configure Your Server Details
Edit the generated `server.json`:
### Choose Your Namespace
The `name` field determines authentication requirements:
- **`io.github.yourname/*`** - Requires GitHub authentication
- **`com.yourcompany/*`** - Requires DNS or HTTP domain verification
### Add Package Validation
Your package must include validation metadata to prove ownership.
<details>
<summary><strong>📦 NPM Packages</strong></summary>
### Requirements
Add an `mcpName` field to your `package.json`:
```json
{
"name": "your-npm-package",
"version": "1.0.0",
"mcpName": "io.github.username/server-name"
}
```
### How It Works
- Registry fetches `https://registry.npmjs.org/your-npm-package`
- Checks that `mcpName` field matches your server name
- Fails if field is missing or doesn't match
### Example server.json
```json
{
"name": "io.github.username/server-name",
"packages": [
{
"registry_type": "npm",
"identifier": "your-npm-package",
"version": "1.0.0"
}
]
}
```
The official MCP registry currently only supports the NPM public registry (`https://registry.npmjs.org`).
</details>
<details>
<summary><strong>🐍 PyPI Packages</strong></summary>
### Requirements
Include your server name in your package README file using this format:
**MCP name format**: `mcp-name: io.github.username/server-name`
Add it to your README.md file (which becomes the package description on PyPI).
### How It Works
- Registry fetches `https://pypi.org/pypi/your-package/json`
- Passes if `mcp-name: server-name` is in the README content
### Example server.json
```json
{
"name": "io.github.username/server-name",
"packages": [
{
"registry_type": "pypi",
"identifier": "your-pypi-package",
"version": "1.0.0"
}
]
}
```
The official MCP registry currently only supports the official PyPI registry (`https://pypi.org`).
</details>
<details>
<summary><strong>📋 NuGet Packages</strong></summary>
### Requirements
Include your server name in your package's README using this format:
**MCP name format**: `mcp-name: io.github.username/server-name`
Add a README file to your NuGet package that includes the server name.
### How It Works
- Registry fetches README from `https://api.nuget.org/v3-flatcontainer/{id}/{version}/readme`
- Passes if `mcp-name: server-name` is found in the README content
### Example server.json
```json
{
"name": "io.github.username/server-name",
"packages": [
{
"registry_type": "nuget",
"identifier": "Your.NuGet.Package",
"version": "1.0.0"
}
]
}
```
The official MCP registry currently only supports the official NuGet registry (`https://api.nuget.org`).
</details>
<details>
<summary><strong>🐳 Docker/OCI Images</strong></summary>
### Requirements
Add an annotation to your Docker image:
```dockerfile
LABEL io.modelcontextprotocol.server.name="io.github.username/server-name"
```
### How It Works
- Registry authenticates with Docker Hub using public token
- Fetches image manifest using Docker Registry v2 API
- Checks that `io.modelcontextprotocol.server.name` annotation matches your server name
- Fails if annotation is missing or doesn't match
### Example server.json
```json
{
"name": "io.github.username/server-name",
"packages": [
{
"registry_type": "oci",
"identifier": "yourusername/your-mcp-server",
"version": "1.0.0"
}
]
}
```
The identifier is `namespace/repository`, and version is the tag and optionally digest.
The official MCP registry currently only supports the official Docker registry (`https://docker.io`).
</details>
<details>
<summary><strong>📁 MCPB Packages</strong></summary>
### Requirements
**MCP reference** - MCPB package URLs must contain "mcp" somewhere within them, to ensure the correct artifact has been uploaded. This may be with the `.mcpb` extension or in the name of your repository.
### Example server.json
```json
{
"name": "io.github.username/server-name",
"packages": [
{
"registry_type": "mcpb",
"identifier": "https://github.com/you/your-repo/releases/download/v1.0.0/server.mcpb"
}
]
}
```
The official MCP registry currently only supports artifacts hosted on GitHub or GitLab releases.
</details>
## Step 4: Authenticate
Choose your authentication method based on your namespace:
### GitHub Authentication (for io.github.* namespaces)
```bash
mcp-publisher login github
```
This opens your browser for OAuth authentication.
### DNS Authentication (for custom domains)
```bash
# Generate keypair
openssl genpkey -algorithm Ed25519 -out key.pem
# Get public key for DNS record
echo "_mcp-registry.yourcompany.com. IN TXT \"v=MCPv1; k=ed25519; p=$(openssl pkey -in key.pem -pubout -outform DER | tail -c 32 | base64)\""
# Add the TXT record to your DNS, then login
mcp-publisher login dns --domain yourcompany.com --private-key $(openssl pkey -in key.pem -noout -text | grep -A3 "priv:" | tail -n +2 | tr -d ' :\n')
```
## Step 5: Publish Your Server
With authentication complete, publish your server:
```bash
mcp-publisher publish
```
You'll see output like:
```
✓ Validating server.json
✓ Checking package ownership
✓ Publishing to registry
✓ Server published successfully!
Your server is now available at:
https://registry.modelcontextprotocol.io/servers/io.github.yourname/weather-server
```
## Step 6: Verify Publication
Check that your server appears in the registry:
```bash
curl https://registry.modelcontextprotocol.io/servers/io.github.yourname/weather-server
```
You should see your server metadata returned as JSON.
## Troubleshooting
**"Package validation failed"** - Ensure your package includes the required validation metadata (mcpName field, README mention, or Docker label).
**"Authentication failed"** - Verify you've correctly set up DNS records or are logged into the right GitHub account.
**"Namespace not authorized"** - Your authentication method doesn't match your chosen namespace format.
## Next Steps
- **Update your server**: Publish new versions with updated server.json files
- **Set up CI/CD**: Automate publishing with [GitHub Actions](github-actions.md)
- **Learn more**: Understand [server.json format](../../reference/server-json/generic-server-json.md) in depth
## What You've Accomplished
You've successfully published your first MCP server to the registry! Your server is now discoverable by MCP clients and can be installed by users worldwide.