Charming
Allows Perplexity to connect to the Charming MCP server to generate, host, and update interactive web apps via natural language commands.
Charming MCP Server
Charming is a hosted MCP server that generates, hosts, and updates interactive web apps. Connect it to any MCP-compatible AI client and ask it to build an app — you get back a live URL in seconds.
Connect
Client | Endpoint |
Claude, Grok, Gemini, Perplexity |
|
ChatGPT |
|
OAuth with Dynamic Client Registration is automatic — clients that support it show a one-time consent screen.
For per-client paste-strings and setup steps, see usecharming.com/clients.txt.
Related MCP server: claude-mermaid
Starter Prompt
Once Charming is connected, paste this to start a build session:
Help me figure out what to build. Look at what you know about me and suggest 2-3 apps that fit, or ask me up to 3 short questions to find an idea.
Read https://usecharming.com/start.md then help me create my first app.MCP Tools
Charming exposes 21 tools. Connected clients discover them automatically via tools/list.
Tool | What it does |
| Store an agent-authored ES module plus optional UI and CSS, and render it inline. Returns the public app URL. |
| Edit an existing app by replacing its module/UI/styles or applying exact-string edits with optimistic-concurrency versioning. |
| Render an existing app inline (where the client supports it) and return its callable API operations and metadata. |
| Return the persisted module, UI, and styles for an existing app plus its current version. |
| List the calling user's apps, newest first, with descriptions and capabilities. |
| Delete an app's module entry. Pass |
| Store a static asset (image, PDF, dataset) so app code stays small; readable back same-origin. |
| Change an app's URL slug. The old URL keeps working by redirecting. |
| Mark an app remixable so visitors get their own editable copy. |
| Stop allowing remixes; existing remixes survive untouched. |
| Set or clear the prompt prefilled in the chat host when a visitor opens a shared app. |
| Run a read-only backend operation inside an app module. |
| Run a mutating backend operation inside an app module without editing code. |
| Record agent-authored feedback (bugs, enhancements, crash reports) about an app. |
| List feedback rows for the caller's apps, newest first. |
| Change the signed-in user's handle (the first segment of their app URLs). |
| Invite another user to collaborate on an app; they accept the invite to get access. |
| Revoke a collaborator's access to an app. |
| List active and pending share invites for one of your apps. |
| Make an app public: anyone with the URL can open it with no login. |
| Make a public app private again; anonymous visitors can no longer open it. |
Use with a coding agent
Working in Codex, Claude Code, Cursor, or another AI coding agent? Install the Charming authoring skill from skills.sh:
npx skills add tambo-labs/charming-mcpIt teaches the agent Charming's build contract and workflow. The skill itself is SKILL.md; AGENTS.md has connect and authoring instructions for any AI coding agent. Codex users can instead install the bundled Charming Codex plugin.
Cursor
Cursor reads project rules from .cursor/rules/. Drop .cursor/rules/charming.mdc into your project (or copy its body into a legacy root .cursorrules) and Cursor's agent will reach for Charming (real URL, storage, and inline rendering) whenever you ask for an app you want to keep. The rule points at the served docs; it does not duplicate the contract.
Documentation
Agent skill:
SKILL.md· coding-agent guide:AGENTS.md· Cursor rule:.cursor/rules/charming.mdcFull authoring guide: usecharming.com/llms-full.txt
OpenAPI spec: charm.ing/openapi.json
Docs: usecharming.com/docs
Publisher
Published by Tambo.
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