---
title: OpenID Connect RP-initiated logout endpoint
description: The OpenID Connect RP-Initiated Logout endpoint provides OAuth clients a way to request that the OP perform a federated logout.
component: pingfederate
version: 13.1
page_id: pingfederate:developers_reference_guide:pf_openid_connect_rp_logout_endpoint
canonical_url: https://docs.pingidentity.com/pingfederate/13.1/developers_reference_guide/pf_openid_connect_rp_logout_endpoint.html
llms_txt: https://docs.pingidentity.com/pingfederate/llms.txt
docs_for_agents: https://developer.pingidentity.com/build-with-ai/docs-for-agents.md
revdate: May 28, 2026
section_ids:
  endpoint-idpinit_logout-openid: "Endpoint: /idp/init_logout.openid"
---

# OpenID Connect RP-initiated logout endpoint

The OpenID Connect RP-Initiated Logout endpoint provides OAuth clients a way to request that the OP perform a federated logout.

|   |                                                                                                                                                                                                                             |
| - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
|   | PingFederate prompts users to confirm the logout request if the PingFederate cookie isn't configured. Learn more in [Configuring the PingFederate cookie](../administrators_reference_guide/pf_configuring_pf_cookie.html). |

## Endpoint: /idp/init\_logout.openid

This endpoint supports the HTTP GET and POST methods. When using the HTTP POST method, the required `Content-Type` value is `application/x-www-form-urlencoded`.

The following table describes the parameters for this endpoint.

| Parameter                  | Description                                                                                                                                                                                                                                                                                                                                                                               |
| -------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `id_token_hint`            | An optional parameter containing an ID token previously issued by PingFederate to the relying party (RP). If this parameter isn't included or can't be validated, the user is prompted to confirm the logout request.                                                                                                                                                                     |
| `client_id`                | An optional parameter containing the ID of the client that is requesting logout. This parameter must be included if an encrypted `id_token_hint` is provided.                                                                                                                                                                                                                             |
| `post_logout_redirect_uri` | An optional URI where the user's browser should be redirected after a logout has been performed. If this parameter is provided, either `client_id` or `id_token_hint` must also be included so PingFederate can determine which client is requesting the logout. The requested `post_logout_redirect_uri` must match one of the values registered for the client or it will be ignored.   |
| `state`                    | An optional value used by the relying party to maintain state between the logout request and the callback to the `post_logout_redirect_uri`. If included in the logout request, PingFederate passes this value as the `state` parameter when redirecting back to the relying party.                                                                                                       |
| `ui_locales`               | An optional parameter indicating the user's preferred languages for the user interface, represented as a space-separated list of BCP47 (RFC5646) language tag values, ordered by preference. For example, the value `fr-CA fr en` represents a preference for French as spoken in Canada, then French (without a region designation), followed by English (without a region designation). |