MCP servers · ConvertKit · MCP server + skill
Connect Claude Code to ConvertKit
One line gives Claude Code your ConvertKit account as tools: 11 endpoints, subscribers, sequences, broadcasts, called with your own connection. No key in the prompt, a receipt for every call, revoke Claude Code's access alone any time.
Three steps
- Create a free 0n3 account and connect ConvertKit. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Claude Code. The terminal agent. One command, then every connection you hold is a tool in your shell. The skill file teaches it how 0n3 works.
- Ask Claude Code: whoami. Then: "List subscribers in ConvertKit".
Install (user scope — every project)
claude mcp add --transport http --scope user 0n3 https://0n3.app/mcp --header "Authorization: Bearer <your 0n token>"
The line above carries a placeholder; 0n3.app/install mints a real key named for Claude Code and fills it in.
What Claude Code can then do in ConvertKit
Subscribers · Manage subscribers4
List subscribers
GET /subscribersGet a subscriber
GET /subscribers/{subscriber_id}Create a subscriber
POST /forms/{form_id}/subscribeTag subscriber
POST /tags/{tag_id}/subscribeSequences · Manage email sequences2
List sequences
GET /sequencesAdd a to sequence
POST /sequences/{sequence_id}/subscribeBroadcasts · Send broadcasts2
List broadcasts
GET /broadcastsCreate a broadcast
POST /broadcastsTags · Manage subscriber tags2
List tags
GET /tagsCreate a tag
POST /tagsForms · Manage signup forms1
List forms
GET /formsConvertKit in other AI clients
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