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 behind one ChatGPT MCP app, subject to plan and workspace approvals
- 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
Full MCP, including write/modify actions, is currently in beta on ChatGPT web for Business and Enterprise/Edu. Pro supports read/fetch MCP permissions in Developer mode. OpenAI's current guide does not list Free or Plus for custom MCP apps, and MCP apps are not available on mobile. Setup lives in Connect ChatGPT; source: OpenAI's current MCP availability guide.
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 use ChatGPT Business or Enterprise/Edu. They still need specialist tools that are not a Zap and not another model. ToolRouter is one MCP app for that job, with one company bill and an audit log on Business and above. Catalog exposure still differs by client, plan and workspace approval.
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 | Same ToolRouter account and gateway; client-specific catalogs | 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. Confirm plan eligibility, turn on Developer mode, create a custom MCP app named ToolRouter, scan its tools, and point it at the hosted MCP URL on that page. Then select the app for the message that needs a tool call.
Companies that also run Claude or Grok can connect the same ToolRouter account there, while respecting each client's catalog and setup policy. See how companies centralize MCP.
ToolRouter ChatGPT MCP FAQ
Which ChatGPT plans include ToolRouter MCP?
Business and Enterprise/Edu have full MCP beta on the web, including write/modify actions. Pro can connect read/fetch MCPs in Developer mode. OpenAI's current guide does not list Free or Plus for this custom MCP path.
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. The bill and account can be shared, but Claude and ChatGPT have different connection paths and can expose different tools. 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.