MCP Platforms & Gateways for OpenAI Codex

Hosted platforms that give an agent hundreds of integrations through one MCP endpoint. Every listing below works with OpenAI Codex. Free GitHub projects and paid options are ranked together.

Updated October 2026 · 4 listings · stars refreshed daily from GitHub

How to add MCP platforms & gateways to OpenAI Codex

Codex reads MCP servers from ~/.codex/config.toml under [mcp_servers.<name>] tables, or add one with codex mcp add.

All MCP servers 74 Docs & code context MCP servers 18 Developer tool MCP servers 16 Web search & scraping MCP servers 9 Design MCP servers 7 Cloud & deployment MCP servers 6 Database & backend MCP servers 6 Productivity MCP servers 5 MCP platforms & gateways 4 Browser & testing MCP servers 3

IBM ContextForge 🔌 MCP serverOpen source

Self-hosted gateway and registry that federates MCP servers, REST/gRPC APIs and A2A agents

★ 4.6k · +31 this week

8.0 Visit ↗

Composio 🔌 MCP serverFreemium

Hundreds of app integrations for agents through one MCP endpoint, with managed auth

★ 30k · +80 this week

7.9 Visit ↗

Zapier MCP 🔌 MCP serverFreemium

Connect agents to 9,000+ apps and actions through Zapier

★ 423 · +6 this week

🔥 Save 33% with annual billing vs monthly

7.6 Visit ↗

mcp-use 🔌 MCP serverOpen source

TypeScript framework for building MCP servers, ChatGPT Apps and Claude connectors

★ 11k · +38 this week

6.8 Visit ↗

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