registry/docs/modelcontextprotocol-io/github-actions.mdx

---
title: How to Automate Publishing with GitHub Actions
sidebarTitle: GitHub Actions
---

## Step 1: Create a Workflow File

In your server project directory, create a `.github/workflows/publish-mcp.yml` file. Here is an example for npm-based local server, but the MCP Registry publishing steps are the same for all package types:

<CodeGroup>

```yaml OIDC authentication (recommended)
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@v5

      ### Publish underlying npm package:

      - name: Set up Node.js
        uses: actions/setup-node@v5
        with:
          node-version: "lts/*"

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm run test --if-present

      - name: Build package
        run: npm run build --if-present

      - name: Publish package to npm
        run: npm publish
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      ### Publish MCP server:

      - name: Install mcp-publisher
        run: |
          curl -L "https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/').tar.gz" | tar xz mcp-publisher

      - name: Authenticate to MCP Registry
        run: ./mcp-publisher login github-oidc

      # Optional:
      # - name: Set version in server.json
      #   run: |
      #     VERSION=${GITHUB_REF#refs/tags/v}
      #     jq --arg v "$VERSION" '.version = $v' server.json > server.tmp && mv server.tmp server.json

      - name: Publish server to MCP Registry
        run: ./mcp-publisher publish
```

```yaml PAT authentication
name: Publish to MCP Registry

on:
  push:
    tags: ["v*"] # Triggers on version tags like v1.0.0

jobs:
  publish:
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      ### Publish underlying npm package:

      - name: Set up Node.js
        uses: actions/setup-node@v5
        with:
          node-version: "lts/*"

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm run test --if-present

      - name: Build package
        run: npm run build --if-present

      - name: Publish package to npm
        run: npm publish
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      ### Publish MCP server:

      - name: Install mcp-publisher
        run: |
          curl -L "https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/').tar.gz" | tar xz mcp-publisher

      - name: Authenticate to MCP Registry
        run: mcp-publisher login github --token ${{ secrets.MCP_GITHUB_TOKEN }}

      # Optional:
      # - name: Set version in server.json
      #   run: |
      #     VERSION=${GITHUB_REF#refs/tags/v}
      #     jq --arg v "$VERSION" '.version = $v' server.json > server.tmp && mv server.tmp server.json

      - name: Publish server to MCP Registry
        run: ./mcp-publisher publish
```

```yaml DNS authentication
name: Publish to MCP Registry

on:
  push:
    tags: ["v*"] # Triggers on version tags like v1.0.0

jobs:
  publish:
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      ### Publish underlying npm package:

      - name: Set up Node.js
        uses: actions/setup-node@v5
        with:
          node-version: "lts/*"

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm run test --if-present

      - name: Build package
        run: npm run build --if-present

      - name: Publish package to npm
        run: npm publish
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      ### Publish MCP server:

      - name: Install mcp-publisher
        run: |
          curl -L "https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/').tar.gz" | tar xz mcp-publisher

      # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
      # TODO: Replace `example.com` with your domain name
      # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
      - name: Authenticate to MCP Registry
        run: |
          echo "${{ secrets.MCP_PRIVATE_KEY }}" > key.pem
          mcp-publisher login dns --domain example.com --private-key-file key.pem

      # Optional:
      # - name: Set version in server.json
      #   run: |
      #     VERSION=${GITHUB_REF#refs/tags/v}
      #     jq --arg v "$VERSION" '.version = $v' server.json > server.tmp && mv server.tmp server.json

      - name: Publish server to MCP Registry
        run: ./mcp-publisher publish
```

</CodeGroup>

## Step 2: Add Secrets

You may need to add a secret to the repository depending on which authentication method you choose:

- **GitHub OIDC Authentication**: No dedicated secret necessary.
- **GitHub PAT Authentication**: Add a `MCP_GITHUB_TOKEN` secret with a GitHub Personal Access Token (PAT) that has `read:org` and `read:user` scopes.
- **DNS Authentication**: Add a `MCP_PRIVATE_KEY` secret with your Ed25519 private key.

You may also need to add secrets for your package registry. For example, the workflow above needs an `NPM_TOKEN` secret with your npm token.

For information about how to add secrets to a repository, see [Using secrets in GitHub Actions](https://docs.github.com/en/actions/how-tos/write-workflows/choose-what-workflows-do/use-secrets).

## Step 3: Tag and Release

Create and push a version tag to trigger the workflow:

```bash
git tag v1.0.0
git push origin v1.0.0
```

The workflow will run tests, build the package, publish the package to npm, and publish the server to the MCP Registry.

## Troubleshooting

{/* prettier-ignore-start */}

| Error Message | Action |
| --- | --- |
| "Authentication failed" | Ensure `id-token: write` permission is set for OIDC, or check secrets. |
| "Package validation failed" | Verify your package successfully published to the package registry (e.g., npm, PyPI), and that your package has the [necessary verfication information](./package-types.mdx). |

{/* prettier-ignore-end */}