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The official SingleStore MCP server (singlestore-mcp-server) that lets AI assistants manage SingleStore from natural language — running SQL on a workspace, inspecting organizations, workspace groups, and workspaces, managing starter workspaces, notebooks, scheduled jobs, and Stage files — with no API keys required thanks to browser-based OAuth.

The official Xero MCP server (@xeroapi/xero-mcp-server) that lets AI assistants work with a Xero accounting organisation — managing contacts, chart of accounts, invoices, credit notes, payments, bank transactions, manual journals, quotes, items, and payroll, and reading financial reports — using Xero OAuth2 custom connections or a bearer token.

Connect Claude to your data through Airbyte's 50+ agent connectors — query CRMs, billing systems, project management tools, communication platforms, and more — with the official Airbyte remote MCP server for AI agents.

Apache-2.0 AI-first IAM, auth server, and agent/MCP gateway with a web UI, OAuth/OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, MFA, OpenClaw/A2A positioning, an `/api/mcp` endpoint for Casdoor administration tools, and configurable upstream MCP server proxying with tool allowlists and bearer-token forwarding.

Apache-2.0 `gws` command-line tool for Google Workspace APIs with structured JSON output, dynamic Discovery API commands, npm and release installers, Gemini CLI extension metadata, and 100+ bundled Agent Skills.

Official Go SDK for Model Context Protocol servers and clients, maintained by the MCP project in collaboration with Google, with packages for MCP, JSON-RPC, OAuth primitives, OAuth protected-resource metadata, clients, servers, transports, examples, and conformance work.

Official TypeScript SDK for Model Context Protocol clients and servers, with the production v1 `@modelcontextprotocol/sdk` package, active v2 server and client package work, Node.js, Bun, and Deno support, transports, OAuth helpers, tools, resources, prompts, examples, and API documentation.

Community reusable agent prompt for reviewing Claude Code remote MCP OAuth integrations using official connect-remote-servers documentation: consent flows, redirect URIs, token storage, scope minimization, and connector approval checklists.

Expert MCP OAuth server hardening capability pack applying documented Dynamic Client Registration, oauth.scopes pins, callback ports, keychain token storage, and least-privilege scope review from official MCP documentation.

Commercial Cirra AI MCP server that connects Claude and other MCP clients to Salesforce orgs via OAuth for metadata, permissions, flows, Apex, and SOQL administration through natural language.

Expert MCP remote server trust review capability pack for auditing OAuth flows, transport security, tool permissions, data exfiltration risk, and vendor scope before connecting Claude Code to third-party MCP servers.

Docker's MCP CLI plugin and gateway for running catalog, OCI, registry, or local-file MCP servers in containers and exposing them to Claude, Cursor, VS Code, and other MCP clients through a shared gateway profile.

Official freee MCP server for connecting Claude to freee accounting, HR, invoices, project time, sales, IT management, and e-signature APIs.

MCP transport bridge that converts between stdio, SSE, and Streamable HTTP so local MCP clients can reach remote servers, or remote clients can reach local stdio servers.

OpenMetadata MCP OAuth server that lets Claude-compatible clients access OpenMetadata metadata tools through user SSO or Basic Auth, PKCE, dynamic client registration, and OpenMetadata's normal permission model.

Official remote MCP server for querying and creating Amplitude analytics, dashboards, experiments, cohorts, session replay insights, and product data from Claude and other MCP clients.

Comprehensive Google Workspace MCP server and CLI for Gmail, Drive, Calendar, Docs, Sheets, Slides, Forms, Chat, Apps Script, Tasks, Contacts, and Custom Search workflows.

Dashboard, CLI, and gateway for centrally managing many MCP servers and exposing them as authenticated all-server, group, single-server, or smart routing endpoints.

MCP-to-OpenAPI proxy server that wraps MCP servers and exposes their tools as standard HTTP endpoints with generated OpenAPI schemas and docs.

Docker-deployed MCP gateway that aggregates downstream MCP servers into namespaces, endpoints, SSE, Streamable HTTP, OpenAPI, auth, and rate limits.

Connect Claude to Okta's official self-hosted MCP server for scoped identity administration, users, groups, applications, policies, logs, brands, and tenant management workflows.

Self-hosted MCP endpoint built into Sure Finance for external AI assistants that need token-authenticated access to personal finance data, accounts, transactions, holdings, budgets, balance sheets, income statements, uploaded family files, bank-statement imports, and goal creation.

AppDeploy hosted MCP server for chat-native full-stack web app deployment with templates, QA snapshots, version rollback, and live public URLs from Claude or ChatGPT.

Official AutoRFP.ai remote MCP server for read-only access to RFP projects, requirements, approved content library search, and organisation tags from Claude and other MCP clients via OAuth.

Official Auxen.ai remote MCP server for listing GPU models and instances, checking account balance, and provisioning or destroying inference instances from Claude via OAuth 2.1 or API keys.

Official Baselight remote MCP server for searching and querying a catalog of 70,000+ public datasets from Claude via OAuth or x-api-key authentication.

BittleBits hosted MCP server for Generative Engine Optimization with get_score and get_rewrite tools to measure and improve AI search visibility via OAuth.

ButlerBrain hosted MCP server providing persistent memory for AI assistants so Claude can store and recall context across sessions via api.butlerbrain.ai.

Self-hostable calendar MCP service for Keeper.sh that lets Claude list calendars and accounts, read events, create or update events, delete events, respond to invites, and retrieve iCal feed URLs through Keeper's API.

Open-source MCP servers for accessing ACI.dev managed functions through app-specific tools or a unified search-and-execute interface.