{"issuer":"https://mcp.mailsenpai.com","authorization_endpoint":"https://mcp.mailsenpai.com/authorize","token_endpoint":"https://mcp.mailsenpai.com/token","registration_endpoint":"https://mcp.mailsenpai.com/register","response_types_supported":["code"],"grant_types_supported":["authorization_code","refresh_token"],"code_challenge_methods_supported":["S256"],"token_endpoint_auth_methods_supported":["none"],"scopes_supported":["offline_access","capabilities:read","lists:read","subscribers:read","subscribers:write","campaigns:read","campaigns:create","campaigns:update","campaigns:pause","templates:read","transactional:read"]}