Nyna MCP Server

Nyna MCP — the AI wedding planner, in your AI assistant

Nyna plans weddings in a conversation: a full plan, real vendors from an indexed directory (venues, caterers, photographers…), the guest list and RSVPs, the budget, the checklist and a minute-by-minute wedding-day run sheet.

This repository holds the client-side packaging of Nyna's remote MCP server. There is nothing to run: the server lives at https://nyna.ai/mcp (Streamable HTTP, OAuth 2.1 with PKCE and dynamic client registration). The directory tools answer with no account; a couple's own wedding appears after one sign-in.

Step-by-step install for every client, with copy buttons: https://nyna.ai/assistants

Claude Code

claude mcp add --transport http nyna https://nyna.ai/mcp

Or as a plugin (adds /nyna:find-vendors, /nyna:guests and /nyna:day-of):

/plugin marketplace add Bros-AI/nyna-mcp
/plugin install nyna@nyna-mcp

Claude (claude.ai / desktop)

Settings → Connectors → Add custom connector → URL https://nyna.ai/mcp → Connect.

ChatGPT

Settings → Connectors → Create (developer mode) → name Nyna, URL https://nyna.ai/mcp. The draft Codex/ChatGPT plugin manifest is in chatgpt/.

Cursor

One click: Add Nyna to Cursor — or copy cursor/mcp.json into .cursor/mcp.json.

VS Code

Copy vscode/mcp.json to .vscode/mcp.json, then MCP: List Servers → Start and tick Nyna in Copilot Chat's tools picker.

Any other client

{ "mcpServers": { "nyna": { "url": "https://nyna.ai/mcp" } } }

What you can ask

• "Find me 5 photographers in Lyon for July 2027"
• "Add Marie and Pierre Dupont to my guest list"
• "Draft the schedule for my wedding day"

Tools, cost, privacy

• Every tool description opens with its tier: [Free], [Sign-in required], [Partner] or [Credits: N]. Chat with Nyna is free; a wedding plan costs 5 credits and a vendor search 2; every account starts with 500 free credits.
• Scopes are granted by name (directory:read, wedding:read, wedding:write, planning:run, partner:read, partner:write); a token with wedding:read is refused a write.
• Every refusal carries a machine-readable code and changed: false, charged: 0. Unknown parameters are refused, never silently dropped.
• Revoke an app at any time in Profile → Connected apps on nyna.ai.
• Machine-readable summary: https://nyna.ai/llms.txt · technical docs: https://nyna.ai/for-agents · privacy: https://nyna.ai/privacy

Layout

.claude-plugin/marketplace.json   Claude Code marketplace (one plugin: nyna)
plugins/nyna/                     the plugin: .claude-plugin/plugin.json, .mcp.json, commands/
cursor/                           deeplink + mcp.json
vscode/                           .vscode/mcp.json
chatgpt/                          Codex / ChatGPT plugin draft (.codex-plugin/plugin.json, .mcp.json)
server.json                       (to add: the official-registry manifest from the nyna repo root)

Support: contact@nyna.ai · Nyna AI SAS, Paris.