Title: feat(http): add --authorization-server flag to override OAuth AS URL by Anika-Sol · Pull Request #2900 · github/github-mcp-server · GitHub
Open Graph Title: feat(http): add --authorization-server flag to override OAuth AS URL by Anika-Sol · Pull Request #2900 · github/github-mcp-server
X Title: feat(http): add --authorization-server flag to override OAuth AS URL by Anika-Sol · Pull Request #2900 · github/github-mcp-server
Description: Summary Adds a --authorization-server CLI flag (and GITHUB_AUTHORIZATION_SERVER env var) to the http subcommand, allowing operators to override the authorization server URL advertised in the OAuth Protected Resource Metadata (/.well-known/oauth-protected-resource). Why When deploying the MCP server against GitHub Enterprise Server, GHES does not natively support RFC 8414, RFC 7591, or PKCE — making direct MCP OAuth impossible. A common solution is to deploy a thin OAuth proxy in front of GHES that implements the MCP OAuth spec. However, the MCP server always derives authorization_servers from GITHUB_HOST, so clients are pointed at GHES directly instead of the proxy. Without this flag, operators must intercept /.well-known/oauth-protected-resource at the ingress layer as a workaround. The AuthorizationServer field already exists in pkg/http/oauth/oauth.Config with the conditional in place — it simply wasn't reachable from any configuration surface. What changed Added AuthorizationServer string field to pkg/http/server.go ServerConfig Wired cfg.AuthorizationServer into the oauth.Config struct in RunHTTPServer Added --authorization-server flag on httpCmd in cmd/github-mcp-server/main.go Added viper binding so GITHUB_AUTHORIZATION_SERVER env var works automatically MCP impact No tool or API changes — only affects OAuth metadata discovery; no tools, schemas, or API behavior changed Prompts tested (tool changes only) N/A Security / limits Auth / permissions considered — when set, this flag redirects clients to a different authorization server. Operators are responsible for ensuring the configured URL points to a trusted proxy. No change to token validation or API access control. Tool renaming I am not renaming tools as part of this PR Lint & tests Linted locally with ./script/lint Tested locally with ./script/test Docs Not needed Updated (README / docs / examples)
Open Graph Description: Summary Adds a --authorization-server CLI flag (and GITHUB_AUTHORIZATION_SERVER env var) to the http subcommand, allowing operators to override the authorization server URL advertised in the OAuth ...
X Description: Summary Adds a --authorization-server CLI flag (and GITHUB_AUTHORIZATION_SERVER env var) to the http subcommand, allowing operators to override the authorization server URL advertised in the OAuth ...
Opengraph URL: https://github.com/github/github-mcp-server/pull/2900
X: @github
Domain: atooq@github.com
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