"OAuth authentication and authorization protocol information" matching MCP servers:

An MCP server that provides OIDC-protected access to QA MGT OpenAPI data, enabling tools for trainees, orders, products, customers, and recruitment operations.

Provides interactive tools to explore AFAS customer data and employee leave information, including bubble charts, leave balance reports, and detailed leave cards.

MCP server for the bexio API, enabling interaction with contacts, sales, accounting, projects, and more through 35 tools. Supports both PAT and OAuth authentication with read-only mode and tool group filtering.

Enables AI assistants to query Bullhorn CRM data using natural language through direct REST API access with OAuth 2.0 authentication.

A production-grade MCP server for Zendesk that provides ticket management, search, user/group operations, and knowledge base access with support for local stdio and remote HTTP transports, authentication via API keys or OAuth, and multi-tenancy.

Enables AI agents to interact with Salesforce through MCP, supporting queries, records, metadata, and bulk operations with flexible OAuth authentication.

A Model Context Protocol (MCP) server that connects LLMs to the Zendesk Support & Help Center APIs — with per-user OAuth 2.1 PKCE authentication and fine-grained tool visibility controls.

Enables AI-powered ticket analysis and comprehensive Zendesk API integration via the Model Context Protocol, supporting both API token (CLI) and OAuth 2.1 (web) authentication modes.

A complete MCP server over the Bitrix24 REST API, enabling CRM, tasks, chats, files, calendar, HR, smart processes, mail, telephony, business processes, and events through 30 tools and ~290 actions. Supports incoming webhook or OAuth 2.0 authentication and works over stdio or Streamable HTTP.

An MCP server that bridges AI agents to the eyeot ERP, exposing ~600 business actions (CRM, sales, stock, HR, finance, etc.) as MCP tools over stdio via OAuth 2.1 authentication.

Enables interaction with Salesforce through the MCP protocol, handling OAuth authentication and secure token storage for users.

A remote MCP server for Zammad, enabling ticket management, search, and OAuth authentication.

Zendesk MCP Pack for managing tickets, users, and organizations via OAuth.

Enables LLMs to search for LinkedIn profiles and retrieve detailed profile information via the LinkedIn API, supporting secure OAuth2 authentication.

MCP server for Zendesk support workflows that enables ticket search, lookup, creation, commenting, status updates, and user listing through natural language. It uses OAuth authentication and supports both internal notes and public comments.

Enables operators to manage support desk operations, including case queues, customer relationships, and communications, through an agent-first MCP interface with exact lifecycle and authorization controls.

Enables AI agents to securely access and act on CRM, order, support, and automation systems through the Model Context Protocol, with authentication, authorization, audit logging, and guardrails.

Enables AI clients to manage contacts through CRUD operations (list, get, create/upsert by email, update, delete) with OAuth 2.1 authentication.

Enables AI assistants to interact with Zoho CRM data through secure OAuth authentication, supporting comprehensive CRM operations including record management, search, bulk operations, and lead conversion.

Enables natural language management of Shopify stores, including orders, customers, products, and inventory, with support for multiple stores and both static and OAuth authentication.