> ## Documentation Index > Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt > Use this file to discover all available pages before exploring further. # List Certificate Summaries > Lists multiplayer server game certificates for a title. Allowed entity token types: title ## Error codes This operation may return the following PlayFab errors: | Error | Code | | --- | --- | | APINotEnabledForGameClientAccess | 1082 | | MultiplayerServerBadRequest | 1382 | | MultiplayerServerForbidden | 1384 | | MultiplayerServerInternalServerError | 1387 | | MultiplayerServerNotFound | 1385 | | MultiplayerServerTooManyRequests | 1380 | | MultiplayerServerUnauthorized | 1383 | | MultiplayerServerUnavailable | 1388 | | ProductDisabledForTitle | 1609 | ## OpenAPI ````yaml /services/playfab/api-references/rest/multiplayer/multiplayer.openapi.json post /MultiplayerServer/ListCertificateSummaries openapi: 3.0.0 info: version: '260922' title: PlayFab Multiplayer API description: >- API methods for managing multiplayer servers. API methods for managing parties. The lobby service helps players group together to play multiplayer games. It is often used as a rendezvous point for players to share connection information. The TrueSkill service helps titles to estimate a player's skill based on their match results. The player skill values from this service are commonly used by a matchmaking service to provide players with balanced matches. termsOfService: https://playfab.com/terms/ contact: url: https://community.playfab.com/index.html license: name: Apache 2.0 url: https://github.com/PlayFab/API_Specs/blob/master/LICENSE servers: - url: https://{titleId}.playfabapi.com description: PlayFab title endpoint variables: titleId: default: your_title_id description: Your PlayFab title ID (hex). security: [] tags: - name: Lobby description: '' - name: Matchmaking description: Matchmaking APIs - name: Matchmaking Admin description: Matchmaking Admin APIs - name: MultiplayerServer description: Multiplayer Server APIs - name: PubSub description: PlayFab PubSub APIs - name: TrueSkill description: TrueSkill APIs - name: TrueSkill Admin description: TrueSkill Admin APIs paths: /MultiplayerServer/ListCertificateSummaries: post: tags: - MultiplayerServer summary: List Certificate Summaries description: | Lists multiplayer server game certificates for a title. Allowed entity token types: title ## Error codes This operation may return the following PlayFab errors: | Error | Code | | --- | --- | | APINotEnabledForGameClientAccess | 1082 | | MultiplayerServerBadRequest | 1382 | | MultiplayerServerForbidden | 1384 | | MultiplayerServerInternalServerError | 1387 | | MultiplayerServerNotFound | 1385 | | MultiplayerServerTooManyRequests | 1380 | | MultiplayerServerUnauthorized | 1383 | | MultiplayerServerUnavailable | 1388 | | ProductDisabledForTitle | 1609 | operationId: ListCertificateSummaries requestBody: content: application/json: schema: $ref: '#/components/schemas/ListCertificateSummariesRequest' description: Returns a list of multiplayer server game certificates for a title. responses: '200': $ref: '#/components/responses/ListCertificateSummariesResponse' '400': $ref: '#/components/responses/ApiErrorWrapper' security: - EntityToken: [] components: schemas: ListCertificateSummariesRequest: description: Returns a list of multiplayer server game certificates for a title. type: object properties: CustomTags: description: >- The optional custom tags associated with the request (e.g. build number, external trace identifiers, etc.). type: object PageSize: description: The page size for the request. type: number x-actualtype: int32 SkipToken: description: The skip token for the paged request. type: string example: PageSize: 10 ListCertificateSummariesResponse: type: object properties: CertificateSummaries: description: The list of game certificates. type: array items: $ref: '#/components/schemas/CertificateSummary' x-isclass: true PageSize: description: The page size on the response. type: number x-actualtype: int32 SkipToken: description: The skip token for the paged response. type: string required: - PageSize example: CertificateSummaries: - Name: GameCertificate1 Thumbprint: Thumbprint1 - Name: GameCertificate2 Thumbprint: Thumbprint2 PageSize: 10 ApiErrorWrapper: description: The basic wrapper around every failed API response type: object properties: code: description: Numerical HTTP code type: integer status: description: String HTTP code type: string error: description: Playfab error code type: string errorCode: description: Numerical PlayFab error code type: integer errorMessage: description: Description for the PlayFab errorCode type: string errorDetails: description: Detailed description of individual issues with the request object type: object required: - code - errorCode CertificateSummary: type: object properties: Name: description: The name of the certificate. type: string Thumbprint: description: The thumbprint for the certificate. type: string responses: ListCertificateSummariesResponse: description: '' content: application/json: schema: type: object properties: code: type: integer description: >- The Http status code. If X-ReportErrorAsSuccess header is set to true, this will report the actual http error code. status: type: string description: The Http status code as a string. data: $ref: '#/components/schemas/ListCertificateSummariesResponse' example: code: 200 status: OK data: CertificateSummaries: - Name: GameCertificate1 Thumbprint: Thumbprint1 - Name: GameCertificate2 Thumbprint: Thumbprint2 PageSize: 10 ApiErrorWrapper: description: This is the outer wrapper for all responses with errors content: application/json: schema: $ref: '#/components/schemas/ApiErrorWrapper' securitySchemes: EntityToken: type: apiKey in: header name: X-EntityToken description: >- This API requires an Entity Session Token, available from the Entity GetEntityToken method. ```` ## Related topics - [List Certificate Summaries](/services/playfab/api-references/rest/multiplayer/multiplayer-server/list-certificate-summaries.md) - [List Asset Summaries](/services/playfab/api-references/rest/multiplayer/multiplayer-server/list-asset-summaries.md) - [List Secret Summaries](/services/playfab/api-references/rest/multiplayer/multiplayer-server/list-secret-summaries.md) - [List Build Summaries V2](/services/playfab/api-references/rest/multiplayer/multiplayer-server/list-build-summaries-v2.md) - [List Virtual Machine Summaries](/services/playfab/api-references/rest/multiplayer/multiplayer-server/list-virtual-machine-summaries.md)