Slack MCP Proxy

OAuth 2.0 proxy for the Slack MCP server.

Direct use (Claude Code without Gateway)

→ Connect your Slack account

Cloudflare Gateway (on_behalf = true)

Discovery endpoints:

• GET https://slack-mcp-proxy.photoroom.dev/.well-known/oauth-protected-resource
• GET https://slack-mcp-proxy.photoroom.dev/.well-known/oauth-authorization-server
• POST https://slack-mcp-proxy.photoroom.dev/oauth/register — DCR
• GET https://slack-mcp-proxy.photoroom.dev/oauth/authorize
• POST https://slack-mcp-proxy.photoroom.dev/oauth/token