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MCP Authorization

MCP OneLogin OAuth Policy

Authenticate MCP gateway requests using a gateway-issued OAuth access token, with browser login delegated to OneLogin.

This is a OneLogin-friendly wrapper around McpOAuthInboundPolicy. Provide a OneLogin account subdomain, clientId, and clientSecret; the OneLogin OIDC issuer, JWKS URL, and browser login endpoints are derived automatically.

Configuration

The configuration shows how to configure the policy in the 'policies.json' document.

config/policies.json
{
  "name": "my-mcp-onelogin-oauth-inbound-policy",
  "policyType": "mcp-onelogin-oauth-inbound",
  "handler": {
    "export": "McpOneLoginOAuthInboundPolicy",
    "module": "$import(@zuplo/runtime)",
    "options": {
      "browserLoginOverrides": {
        "remoteTimeoutMs": 10000,
        "sessionTtlSeconds": 28800,
        "stateTtlSeconds": 900
      },
      "clientId": "$env(ONELOGIN_CLIENT_ID)",
      "clientSecret": "$env(ONELOGIN_CLIENT_SECRET)",
      "gateway": {
        "accessTokenTtlSeconds": 900,
        "cimdEnabled": true,
        "refreshTokenTtlSeconds": 2592000
      },
      "oneLoginSubdomain": "acme",
      "scope": "openid profile email"
    }
  }
}

Policy Configuration

• name <string> - The name of your policy instance. This is used as a reference in your routes.
• policyType <string> - The identifier of the policy. This is used by the Zuplo UI. Value should be mcp-onelogin-oauth-inbound.
• handler.export <string> - The name of the exported type. Value should be McpOneLoginOAuthInboundPolicy.
• handler.module <string> - The module containing the policy. Value should be $import(@zuplo/runtime).
• handler.options <object> - The options for this policy. See Policy Options below.

Policy Options

The options for this policy are specified below. All properties are optional unless specifically marked as required.

• oneLoginSubdomain (required) <string> - The OneLogin account subdomain, without https://, .onelogin.com, a trailing slash, or a path.
• clientId (required) <string> - The OneLogin OIDC application client_id registered for the gateway's browser login flow.
• clientSecret (required) <string> - The OneLogin OIDC application client_secret. Use $env(...) to source from a secret environment variable.
• scope <string> - OIDC scopes requested during browser login. Defaults to "openid profile email".
• gateway <object> - Gateway-side OAuth token settings. The gateway issuer and advertised URLs are derived from the incoming request origin.
  • accessTokenTtlSeconds <integer> - Lifetime of access tokens issued by /oauth/token. Defaults to 900.
  • refreshTokenTtlSeconds <integer> - Lifetime of refresh tokens issued by /oauth/token. Defaults to 2592000.
  • cimdEnabled <boolean> - Whether to advertise client_id_metadata_document_supported in AS metadata. Defaults to true.
• browserLoginOverrides <object> - Optional overrides for the derived browser-login settings.
  • remoteTimeoutMs <integer> - No description available. Defaults to 10000.
  • stateTtlSeconds <integer> - No description available. Defaults to 900.
  • sessionTtlSeconds <integer> - No description available. Defaults to 28800.

Using the Policy

MCP OneLogin OAuth Inbound

Authenticate MCP gateway requests using a gateway-issued OAuth access token, with browser login delegated to OneLogin.

This is a thin OneLogin-friendly wrapper around the generic McpOAuthInboundPolicy. Use it when you want to configure browser login with OneLogin-specific fields instead of the full set of OIDC URLs.

Derived configuration

For OneLogin OIDC v2, the wrapper derives:

Generic field	Derived value
oidc.issuer	https://{oneLoginSubdomain}.onelogin.com/oidc/2
oidc.jwksUrl	https://{oneLoginSubdomain}.onelogin.com/oidc/2/certs
browserLogin.url	https://{oneLoginSubdomain}.onelogin.com/oidc/2/auth
browserLogin.tokenUrl	https://{oneLoginSubdomain}.onelogin.com/oidc/2/token

These endpoint shapes follow OneLogin's OIDC provider configuration endpoint at https://{oneLoginSubdomain}.onelogin.com/oidc/2/.well-known/openid-configuration.

Configuration

Code
{
  "name": "onelogin-managed-oauth",
  "policyType": "mcp-onelogin-oauth-inbound",
  "handler": {
    "module": "$import(@zuplo/runtime)",
    "export": "McpOneLoginOAuthInboundPolicy",
    "options": {
      "oneLoginSubdomain": "acme",
      "clientId": "$env(ONELOGIN_CLIENT_ID)",
      "clientSecret": "$env(ONELOGIN_CLIENT_SECRET)"
    }
  }
}

oneLoginSubdomain must be only the account subdomain, such as acme from https://acme.onelogin.com. Do not include https://, .onelogin.com, a trailing slash, or an OIDC path.

Pairing

Pair this policy with McpTokenExchangeInboundPolicy and McpProxyHandler, the same as McpOAuthInboundPolicy. Only one MCP OAuth policy is allowed per project; attach the same policy by name to every MCP route.

Read more about how policies work