How to connect any MCP server to OpenAI Codex CLI
Add a local MCP server to Codex CLI, confirm that it works, then connect the same tools through MCP Nest for remote and non-interactive use.
MCP server guides
Host local MCP servers in the cloud, connect them to your AI clients, and manage the tools they expose.
New to MCP Nest?Start with your first deploymentConnect MCP servers to AI clients
Add your MCP Nest endpoint to ChatGPT, Claude, Gemini, Grok, Perplexity, or Codex.
How to connect MCP Nest to Grok Bot
Add hosted MCP servers to Grok Bot through MCP Nest, authorize them in the MCP Marketplace, and use their tools from a conversation.
How to connect any MCP server to Gemini Spark
Add hosted stdio MCP servers to Gemini as a custom app through MCP Nest. Custom MCP apps work in Spark, not Gemini Chat.
How to connect any MCP server to Grok
Connect any hosted MCP server to Grok through MCP Nest, then use calendar, mail, flight, and search tools directly in a chat.
How to connect any MCP server to Claude
Add a remote MCP connector to Claude on web, desktop and mobile, so stdio MCP servers that only run locally become available in every Claude client.
How to connect any MCP server to Perplexity
Add a remote MCP connector to Perplexity so it can search your calendar, mail, flights and other tools instead of only the public web.
How to connect any MCP server to ChatGPT
Add a custom MCP app to ChatGPT with Developer Mode, then use calendar, mail, flight, and search tools in chats without running them locally.
Deploy useful MCP servers
Run calendar, email, search, flight, and hotel tools in the cloud.
Apple iCloud Calendar in ChatGPT, Claude, and Perplexity
Turn the CalDAV MCP server into a remote MCP connector with MCP Nest, so Claude, ChatGPT, or Perplexity can read and manage your Apple iCloud Calendar.
How to use Fastmail in ChatGPT, Perplexity, or Claude
Turn the Fastmail MCP server into a remote MCP connector with MCP Nest, so Claude, ChatGPT, or Perplexity can read, search, and send your email.
How to use Google Flights in ChatGPT, Claude, Perplexity, or Grok
Deploy the Google Flights MCP server with MCP Nest, then search live routes, dates, and prices from ChatGPT, Claude, Perplexity, or Grok.
How to use Google Hotels in ChatGPT, Claude, Perplexity, or Grok
Deploy the Google Hotels MCP server with MCP Nest, then search live stays, prices, and ratings from ChatGPT, Claude, Perplexity, or Grok.
How to use Perplexity from Claude or ChatGPT
Use Perplexity's search and research capabilities as an MCP tool inside Claude, ChatGPT, or any MCP-compatible assistant via MCP Nest.
Configure MCP Nest
Set up deployments, control tool access, and connect clients without OAuth.
How to disable individual MCP tools
Hide noisy or unused tools from Claude, ChatGPT and other MCP clients with per-tool toggles in the MCP Nest dashboard, and cut tokens on every turn.
Using MCP Nest without OAuth (pre-authenticated URLs)
Connect scripts and MCP clients that do not support OAuth by using a pre-authenticated MCP Nest URL with a revocable access token.
Getting Started with MCP Nest
Deploy local stdio MCP servers to the cloud with MCP Nest, then connect their tools to ChatGPT, Claude, and other remote MCP clients.
How to deploy multiple separate MCP configurations
Create isolated MCP Nest deployments for work, personal, or project-specific tools so each AI client receives only the tools it needs.