MCP servers · Intercom · MCP server
Connect Codex CLI to Intercom
One line gives Codex CLI your Intercom account as tools: 15 endpoints, contacts, conversations, companies, called with your own connection. No key in the prompt, a receipt for every call, revoke Codex CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect Intercom. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Codex CLI. OpenAI's terminal agent reads 0n3 over Streamable HTTP with a token from your environment.
- Ask Codex CLI: whoami. Then: "Create a contact in Intercom".
Put the token in your environment
export ON3_TOKEN="<your 0n token>"
Add it to your shell profile so Codex finds it next time.
The line above carries a placeholder; 0n3.app/install mints a real key named for Codex CLI and fills it in.
What Codex CLI can then do in Intercom
Contacts · Manage contacts and leads5
Create a contact
POST /contactsList contacts
GET /contactsSearch contacts
POST /contacts/searchUpdate a contact
PUT /contacts/{contactId}Tag contact
POST /contacts/{contactId}/tagsConversations · Handle customer conversations4
Create a conversation
POST /conversationsList conversations
GET /conversationsReply a to conversation
POST /conversations/{conversationId}/replyClose a conversation
POST /conversations/{conversationId}/partsCompanies · Manage companies2
Create a company
POST /companiesList companies
GET /companiesTags · Create and assign tags2
Create a tag
POST /tagsList tags
GET /tagsArticles · Manage help center articles2
Create an article
POST /articlesList articles
GET /articlesIntercom in other AI clients
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