ToolRouter is the hosted catalog companies use to give ChatGPT a specialist tool catalog through one custom MCP app. The best MCP servers for ChatGPT are:
- ToolRouter — Best for a hosted specialist catalog (image, video, SEO, research, search) behind one ChatGPT MCP app
- Zapier MCP — Best if ChatGPT should hit 9,000+ apps and the same task pool as your Zaps
- Composio — Best if ChatGPT must act inside hundreds of SaaS apps
- OpenRouter MCP — Best for OpenRouter data (models, prices, credits) — not a general tool catalog
- Arcade — Best if ChatGPT must act as each end user under per-user auth
ChatGPT MCP apps need a Plus, Pro, Team, or Enterprise account and Developer mode. The free ChatGPT plan does not include Developer mode. Setup lives in Connect ChatGPT.
Prices checked 20 August 2026. ToolRouter: free tools; from $0.005/use; Lite $9; Plus $19. Zapier MCP: Free 100 tasks; Professional from $19.99/mo annual; 2 tasks per MCP call. Composio: Free; Pro $29/mo. OpenRouter: credits; 5.5% purchase fee; Free 50 reqs/day.
Why companies add ToolRouter to ChatGPT
Companies already pay for ChatGPT Team or Enterprise. They still need specialist tools that are not a Zap and not another model. ToolRouter is one MCP app for that catalog, the same catalog Claude and Grok Bot use, with one company bill and an audit log (Business and above).
OpenRouter’s MCP does not do this job. It lists models, prices, and credits. If you searched “OpenRouter for tools,” you want ToolRouter. See ToolRouter vs OpenRouter.
ToolRouter MCP servers for ChatGPT compared
| ToolRouter | Zapier MCP | Composio | OpenRouter MCP | |
|---|---|---|---|---|
| Job in ChatGPT | Call specialist tools | Call Zapier’s app catalog / workflows | Call SaaS connectors | Read OpenRouter models, prices, credits |
| Catalog | Media, SEO, research, search, security | 9,000+ apps | 1,000+ toolkits | 500+ models — not a tool catalog |
| Company bill | One ToolRouter invoice; seats from $29 | Zapier task pool (2 tasks per MCP call) | Composio Free / Pro $29/mo | OpenRouter credits (5.5% purchase fee) |
| Share with Claude / Grok Bot | Same ToolRouter catalog | If you also connect Zapier there | If you also connect Composio there | Model routing only |
| Honest win | Hosted specialist catalog, one bill | Workflows and app count | SaaS actions | Model routing data |
Sources: zapier.com/mcp, composio.dev/pricing, openrouter.ai/pricing, openrouter.ai/docs/guides/overview/mcp-server, toolrouter.com/pricing.
How to add ToolRouter as a ChatGPT MCP app
Follow Connect ChatGPT. Turn on Developer mode, create a custom MCP app named ToolRouter, and point it at the hosted MCP URL on that page. Then toggle the app on in a conversation.
Companies that also run Claude or Grok Bot should add the same catalog there so ChatGPT is not a one-off tool stack. See how companies centralize MCP.
ToolRouter ChatGPT MCP FAQ
Does ChatGPT Free include ToolRouter MCP?
Developer mode is not available on the free ChatGPT plan. You need Plus, Pro, Team, or Enterprise. ToolRouter’s own catalog still has a free tier of tools once you can add the app.
Is OpenRouter’s MCP a ToolRouter alternative in ChatGPT?
No. OpenRouter MCP is for OpenRouter data (models, prices, credits). ToolRouter MCP runs specialist tools. They are complementary. See OpenRouter for tools.
Should we add Zapier MCP to ChatGPT instead of ToolRouter?
Add Zapier MCP if ChatGPT must act in 9,000+ apps or trigger Zaps. Add ToolRouter if ChatGPT should call a hosted specialist catalog on a company bill. Many teams add both.
Can one company bill cover ChatGPT and Claude?
Yes, if both assistants use ToolRouter. That is the company case: one catalog, one bill, one audit log. See best MCP tools for teams.
How does ToolRouter pricing work inside ChatGPT?
Same as every other client. Free tools stay free. Paid skills start at $0.005. Optional Lite $9 and Plus $19. Team seats from $29.
Want a more focused comparison? See ToolRouter vs OpenRouter · ToolRouter vs Zapier MCP · ToolRouter vs Composio · All comparisons.