Merchant Center

Merchant Center: Merchant API and Comparison Shopping Service, through a service account key.

Install

gmerchant is one plugin in the google-services-mcps marketplace, and it runs one MCP server with the same name. Install it for Claude Code with the command below. For Codex, OpenCode or Antigravity, change --agent; the product id stays the same.

Install for Claude Code

npx google-services-mcps install --agent claude --plugin gmerchant

What it manages

The server carries 16 generated API bindings and 12 gateway APIs. Gateway APIs are reached through api_search, api_describe and api_call, which every product with gateway APIs lists.

Generated API bindings
API	Version
css	v1
manufacturers	v1
merchantapi	accounts_v1
merchantapi	conversions_v1
merchantapi	datasources_v1
merchantapi	inventories_v1
merchantapi	issueresolution_v1
merchantapi	lfp_v1
merchantapi	loyaltycustomers_v1
merchantapi	notifications_v1
merchantapi	ordertracking_v1
merchantapi	products_v1
merchantapi	promotions_v1
merchantapi	quota_v1
merchantapi	reports_v1
merchantapi	reviews_v1alpha

Gateway APIs
API	Version
merchantapi	accounts_v1
merchantapi	conversions_v1
merchantapi	datasources_v1
merchantapi	inventories_v1
merchantapi	issueresolution_v1
merchantapi	lfp_v1
merchantapi	notifications_v1
merchantapi	ordertracking_v1
merchantapi	products_v1
merchantapi	promotions_v1
merchantapi	quota_v1
merchantapi	reports_v1

Tools

The plugin's server registers 153 tools: 72 reads, 60 writes, 20 destructive actions and 1 dynamic tools. A read never asks. A write is listed only when Allow write tools is on, and asks before it runs. A destructive action asks twice. A dynamic tool decides per call.

Every tool name starts with mcp__plugin_gmerchant_gmerchant__, so a call traces back to this product. The table lists the tools this server registers, with the safety class from the plugin's tool map.

Registered tools
Tool	Class	What it does
api_call	dynamic	Call an API method
api_describe	read	Describe an API method
api_methods	read	gmerchant: API methods
api_search	read	Search API methods
auth_setup_service_account	write	Set up the service account key
auth_status	read	Sign-in status
css_accounts_css_products_get	read	css.accounts.cssProducts.get
css_accounts_css_products_list	read	css.accounts.cssProducts.list
css_accounts_get	read	css.accounts.get
css_accounts_labels_create	write	css.accounts.labels.create
css_accounts_labels_delete	destructive	css.accounts.labels.delete
css_accounts_labels_list	read	css.accounts.labels.list
css_accounts_labels_patch	write	css.accounts.labels.patch
css_accounts_quotas_list	read	css.accounts.quotas.list
css_accounts_update_labels	write	css.accounts.updateLabels
css_accts_delete	destructive	css.accounts.cssProductInputs.delete
css_accts_insert	write	css.accounts.cssProductInputs.insert
css_accts_list_child_accts	read	css.accounts.listChildAccounts
css_accts_patch	write	css.accounts.cssProductInputs.patch
health	read	Server health
mer_accounts_data_sources_patch	write	merchantapi.accounts.dataSources.patch
mer_omnichannel_settings_create	write	merchantapi.accounts.omnichannelSettings.create
mer_providers_link_lfp_provider	write	merchantapi.accounts.omnichannelSettings.lfpProviders.linkLfpProvider
mer_registration_unregister_gcp	destructive	merchantapi.accounts.developerRegistration.unregisterGcp
merc_accounts_data_sources_list	read	merchantapi.accounts.dataSources.list
merc_accts_product_reviews_list	read	merchantapi.accounts.productReviews.list
merc_get_automatic_improvements	read	merchantapi.accounts.automaticImprovements.getAutomaticImprovements
merc_get_developer_registration	read	merchantapi.accounts.developerRegistration.getDeveloperRegistration
merc_omnichannel_settings_patch	write	merchantapi.accounts.omnichannelSettings.patch
merch_accounts_data_sources_get	read	merchantapi.accounts.dataSources.get
merch_accts_data_sources_create	write	merchantapi.accounts.dataSources.create
merch_accts_data_sources_delete	destructive	merchantapi.accounts.dataSources.delete
merch_accts_product_reviews_get	read	merchantapi.accounts.productReviews.get
merch_omnichannel_settings_list	read	merchantapi.accounts.omnichannelSettings.list
merch_registration_register_gcp	write	merchantapi.accounts.developerRegistration.registerGcp
mercha_checkout_settings_create	write	merchantapi.accounts.programs.checkoutSettings.create
mercha_delete_checkout_settings	destructive	merchantapi.accounts.programs.checkoutSettings.deleteCheckoutSettings
mercha_homepage_update_homepage	write	merchantapi.accounts.homepage.updateHomepage
mercha_omnichannel_settings_get	read	merchantapi.accounts.omnichannelSettings.get
mercha_reg_get_acc_for_gcp_regi	read	merchantapi.accounts.developerRegistration.getAccountForGcpRegistration
mercha_request_inv_verification	write	merchantapi.accounts.omnichannelSettings.requestInventoryVerification
mercha_retrieve_for_application	read	merchantapi.accounts.termsOfServiceAgreementStates.retrieveForApplication
mercha_shipping_settings_insert	write	merchantapi.accounts.shippingSettings.insert
mercha_update_autofeed_settings	write	merchantapi.accounts.autofeedSettings.updateAutofeedSettings
mercha_update_business_identity	write	merchantapi.accounts.businessIdentity.updateBusinessIdentity
mercha_update_checkout_settings	write	merchantapi.accounts.programs.checkoutSettings.updateCheckoutSettings
mercha_update_email_preferences	write	merchantapi.accounts.emailPreferences.updateEmailPreferences
merchanta_accounts_products_get	read	merchantapi.accounts.products.get
merchanta_accounts_programs_get	read	merchantapi.accounts.programs.get
merchanta_accounts_regions_list	read	merchantapi.accounts.regions.list
merchanta_accounts_services_get	read	merchantapi.accounts.services.get
merchanta_accounts_users_create	write	merchantapi.accounts.users.create
merchanta_accounts_users_delete	destructive	merchantapi.accounts.users.delete
merchanta_accts_lfp_invs_insert	write	merchantapi.accounts.lfpInventories.insert
merchanta_accts_lfp_stores_list	read	merchantapi.accounts.lfpStores.list
merchanta_accts_policies_create	write	merchantapi.accounts.onlineReturnPolicies.create
merchanta_accts_policies_delete	destructive	merchantapi.accounts.onlineReturnPolicies.delete
merchanta_accts_programs_enable	write	merchantapi.accounts.programs.enable
merchanta_accts_promotions_list	read	merchantapi.accounts.promotions.list
merchanta_accts_services_reject	write	merchantapi.accounts.services.reject
merchanta_get_autofeed_settings	read	merchantapi.accounts.autofeedSettings.getAutofeedSettings
merchanta_get_business_identity	read	merchantapi.accounts.businessIdentity.getBusinessIdentity
merchanta_get_checkout_settings	read	merchantapi.accounts.programs.checkoutSettings.getCheckoutSettings
merchanta_get_email_preferences	read	merchantapi.accounts.emailPreferences.getEmailPreferences
merchanta_get_shipping_settings	read	merchantapi.accounts.shippingSettings.getShippingSettings
merchanta_homepage_get_homepage	read	merchantapi.accounts.homepage.getHomepage
merchantap_acc_imp_upd_aut_impr	write	merchantapi.accounts.automaticImprovements.updateAutomaticImprovements
merchantap_acc_lfp_mer_stat_get	read	merchantapi.accounts.lfpMerchantStates.get
merchantap_acc_pro_reg_inv_dele	destructive	merchantapi.accounts.products.regionalInventories.delete
merchantap_acc_pro_reg_inv_inse	write	merchantapi.accounts.products.regionalInventories.insert
merchantap_acc_pro_reg_inv_list	read	merchantapi.accounts.products.regionalInventories.list
merchantap_acco_prod_revi_delet	destructive	merchantapi.accounts.productReviews.delete
merchantap_acco_prod_revi_inser	write	merchantapi.accounts.productReviews.insert
merchantap_accounts_delete	destructive	merchantapi.accounts.delete
merchantap_accounts_get	read	merchantapi.accounts.get
merchantap_accounts_issues_list	read	merchantapi.accounts.issues.list
merchantap_accounts_limits_get	read	merchantapi.accounts.limits.get
merchantap_accounts_limits_list	read	merchantapi.accounts.limits.list
merchantap_accounts_list	read	merchantapi.accounts.list
merchantap_accounts_patch	write	merchantapi.accounts.patch
merchantap_accounts_quotas_list	read	merchantapi.accounts.quotas.list
merchantap_accounts_regions_get	read	merchantapi.accounts.regions.get
merchantap_accounts_users_get	read	merchantapi.accounts.users.get
merchantap_accounts_users_list	read	merchantapi.accounts.users.list
merchantap_accounts_users_patch	write	merchantapi.accounts.users.patch
merchantap_accts_gbp_accts_list	read	merchantapi.accounts.gbpAccounts.list
merchantap_accts_homepage_claim	write	merchantapi.accounts.homepage.claim
merchantap_accts_inputs_delete	destructive	merchantapi.accounts.productInputs.delete
merchantap_accts_inputs_insert	write	merchantapi.accounts.productInputs.insert
merchantap_accts_inputs_patch	write	merchantapi.accounts.productInputs.patch
merchantap_accts_lfp_stores_get	read	merchantapi.accounts.lfpStores.get
merchantap_accts_link_gbp_acct	write	merchantapi.accounts.gbpAccounts.linkGbpAccount
merchantap_accts_me_verify_self	write	merchantapi.accounts.users.me.verifySelf
merchantap_accts_policies_get	read	merchantapi.accounts.onlineReturnPolicies.get
merchantap_accts_policies_list	read	merchantapi.accounts.onlineReturnPolicies.list
merchantap_accts_products_list	read	merchantapi.accounts.products.list
merchantap_accts_programs_list	read	merchantapi.accounts.programs.list
merchantap_accts_promotions_get	read	merchantapi.accounts.promotions.get
merchantap_accts_regions_create	write	merchantapi.accounts.regions.create
merchantap_accts_regions_delete	destructive	merchantapi.accounts.regions.delete
merchantap_accts_regions_patch	write	merchantapi.accounts.regions.patch
merchantap_accts_reports_search	read	merchantapi.accounts.reports.search
merchantap_accts_reviews_delete	destructive	merchantapi.accounts.merchantReviews.delete
merchantap_accts_reviews_get	read	merchantapi.accounts.merchantReviews.get
merchantap_accts_reviews_insert	write	merchantapi.accounts.merchantReviews.insert
merchantap_accts_reviews_list	read	merchantapi.accounts.merchantReviews.list
merchantap_accts_sales_insert	write	merchantapi.accounts.lfpSales.insert
merchantap_accts_services_list	read	merchantapi.accounts.services.list
merchantap_accts_signals_create	write	merchantapi.accounts.orderTrackingSignals.create
merchantap_accts_sources_create	write	merchantapi.accounts.conversionSources.create
merchantap_accts_sources_delete	destructive	merchantapi.accounts.conversionSources.delete
merchantap_accts_sources_fetch	write	merchantapi.accounts.dataSources.fetch
merchantap_accts_sources_get	read	merchantapi.accounts.conversionSources.get
merchantap_accts_sources_list	read	merchantapi.accounts.conversionSources.list
merchantap_accts_sources_patch	write	merchantapi.accounts.conversionSources.patch
merchantap_accts_states_get	read	merchantapi.accounts.termsOfServiceAgreementStates.get
merchantap_accts_statuses_list	read	merchantapi.accounts.aggregateProductStatuses.list
merchantap_accts_stores_delete	destructive	merchantapi.accounts.lfpStores.delete
merchantap_accts_stores_insert	write	merchantapi.accounts.lfpStores.insert
merchantap_create	write	merchantapi.accounts.notificationsubscriptions.create
merchantap_create_and_configure	write	merchantapi.accounts.createAndConfigure
merchantap_create_test_acct	write	merchantapi.accounts.createTestAccount
merchantap_customers_manage	write	merchantapi.accounts.loyaltyCustomers.manage
merchantap_delete	destructive	merchantapi.accounts.notificationsubscriptions.delete
merchantap_get	read	merchantapi.accounts.notificationsubscriptions.get
merchantap_get_business_info	read	merchantapi.accounts.businessInfo.getBusinessInfo
merchantap_homepage_unclaim	destructive	merchantapi.accounts.homepage.unclaim
merchantap_list	read	merchantapi.accounts.notificationsubscriptions.list
merchantap_list_subaccounts	read	merchantapi.accounts.listSubaccounts
merchantap_patch	write	merchantapi.accounts.notificationsubscriptions.patch
merchantap_products_invs_delete	destructive	merchantapi.accounts.products.localInventories.delete
merchantap_products_invs_insert	write	merchantapi.accounts.products.localInventories.insert
merchantap_products_invs_list	read	merchantapi.accounts.products.localInventories.list
merchantap_programs_disable	destructive	merchantapi.accounts.programs.disable
merchantap_promotions_insert	write	merchantapi.accounts.promotions.insert
merchantap_providers_find	read	merchantapi.accounts.omnichannelSettings.lfpProviders.find
merchantap_regions_batch_create	write	merchantapi.accounts.regions.batchCreate
merchantap_regions_batch_delete	destructive	merchantapi.accounts.regions.batchDelete
merchantap_regions_batch_update	write	merchantapi.accounts.regions.batchUpdate
merchantap_relationships_get	read	merchantapi.accounts.relationships.get
merchantap_relationships_list	read	merchantapi.accounts.relationships.list
merchantap_relationships_patch	write	merchantapi.accounts.relationships.patch
merchantap_renderaccountissues	read	merchantapi.issueresolution.renderaccountissues
merchantap_renderproductissues	read	merchantapi.issueresolution.renderproductissues
merchantap_retrieve_latest	read	merchantapi.termsOfService.retrieveLatest
merchantap_service_accept	write	merchantapi.termsOfService.accept
merchantap_services_approve	write	merchantapi.accounts.services.approve
merchantap_services_propose	write	merchantapi.accounts.services.propose
merchantap_sources_undelete	write	merchantapi.accounts.conversionSources.undelete
merchantap_sources_uploads_get	read	merchantapi.accounts.dataSources.fileUploads.get
merchantap_terms_of_service_get	read	merchantapi.termsOfService.get
merchantap_triggeraction	write	merchantapi.issueresolution.triggeraction
merchantap_update_business_info	write	merchantapi.accounts.businessInfo.updateBusinessInfo

The plugin option toolset can list fewer tools. google lists 13 tools that do the same jobs as Google's official MCP server for this product; curated lists the hand-written and gateway tools; all is the default.

gmerchant belongs to the service-account login group. This group uses a service account key, not a login. Create the key in the Google Cloud console, then run npx google-services-mcps setup-service-account with its path. The suite stores only the path, the account address and the time.

The plugin's scope file lists 2 OAuth scopes for 1 APIs. A login asks only for the scopes of its profile: readonly (the default), readwrite, full, or an exact list.

OAuth scopes in the plugin's scope file
API	Scope
gmerchant	https://www.googleapis.com/auth/content
gmerchant	https://www.googleapis.com/auth/manufacturercenter

Plugin details

Plugin: gmerchant
MCP server: gmerchant
Display name: Merchant Center
Version: 2.17.0
Marketplace: google-services-mcps
Login group: service-account
Marketplace category: commerce
Plugin options: allow_writes, confirmation, token_dir, toolset
Server kind: discovery

Install

What it manages

Tools

Sign-in

Plugin details

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