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@vineethnkrishnan/oauth-core

v0.1.3

Published

Shared OAuth 2.0 infrastructure for MCP server packages — token storage, browser flow, and auto-refresh.

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Links

Git

Maintainers

vineethnkrishnanvineethnkrishnan

Keywords

mcpoauthoauth2token-refreshmodel-context-protocol

Readme

OAuth Core

License: MIT

Shared OAuth 2.0 infrastructure for MCP server packages — token storage, browser-based auth flow, and automatic token refresh.

Overview

oauth-core is an internal library used by MCP servers in the mcp-pool monorepo to provide consistent OAuth2 authentication. It is not intended to be used as a standalone package.

Used By

  • @vineethnkrishnan/notion-mcp
  • @vineethnkrishnan/linear-mcp
  • @vineethnkrishnan/hubspot-mcp
  • @vineethnkrishnan/intercom-mcp
  • @vineethnkrishnan/shopify-mcp
  • @vineethnkrishnan/google-workspace-mcp

Features

  • Token Storage: Persistent local filesystem storage with automatic refresh.
  • Browser-Based OAuth Flow: Opens the user's browser for authorization, runs a local callback server.
  • CLI Integration: Adds auth login and auth logout subcommands to MCP server CLIs.
  • Strategy Pattern: OAuthStrategy for OAuth2 flows, StaticTokenStrategy for API keys — unified behind a common TokenProvider interface.
  • Configuration-Driven: No hardcoded URLs; each consuming package provides its own OAuth config.

API

createAuthProvider(config)

Creates an OAuth2 auth provider with CLI support for login/logout.

createTokenStore(serverName)

Creates a persistent token store scoped to the given server name. Tokens are stored at ~/.mcp-pool/<serverName>/.

StaticTokenStrategy

A TokenProvider implementation for static API keys/tokens that don't expire.

OAuthStrategy

A TokenProvider implementation for OAuth2 tokens with automatic refresh.

Development

# Build
npm run build -w packages/oauth-core

# Test
npm test -w packages/oauth-core

License

This project is licensed under the MIT License.