FormVault

FormVault MCP server

Create and manage GDPR-compliant, EU-hosted forms from any MCP-compatible AI assistant.

This is an MCP server for FormVault, a form builder hosted in Germany. Point Claude, ChatGPT, Cursor, Copilot or any MCP-compatible assistant at your FormVault account and build forms by describing them.

Prerequisites

A FormVault account and an API key. Create the key at formvault.eu/app/api-keys.

Setup (hosted — recommended)

Add the hosted server to your assistant's MCP configuration — no install, no local process:

{
  "mcpServers": {
    "formvault": {
      "url": "https://api.formvault.eu/mcp",
      "headers": {
        "Authorization": "Bearer fv_your_key_here"
      }
    }
  }
}

Claude Desktop's support for remote/header-based MCP servers depends on your version — check its current docs if the above doesn't show up as an option.

No tool takes a tenant id. The API key carries its own, so it cannot read or write another organisation's forms — and a form id it may not touch reports as not found rather than forbidden, so a key cannot be used to discover what exists. The server itself holds no standing credentials of its own; every request is scoped to whichever key you send. Revoke a key at any time from the API keys page.

Setup (npx / stdio)

For clients that don't yet support a remote/header-based server:

{
  "mcpServers": {
    "formvault": {
      "command": "npx",
      "args": ["-y", "@formvault/mcp"],
      "env": {
        "FORMVAULT_API_KEY": "fv_your_key_here"
      }
    }
  }
}

Restart your assistant and ask for what you need, for example:

• "Build me a client intake form with a GDPR consent checkbox."
• "List my forms and tell me which have no fields yet."
• "Delete the test form I made earlier."

Self-hosting / local development

You can run this package yourself, either as a local stdio server or as your own HTTP deployment. It is a client of the FormVault API, so it still needs a FormVault account and API key:

npm install
npm run build

# stdio (for a local Claude Desktop/Code config using "command"/"args")
FORMVAULT_API_KEY=fv_... node dist/index.js

# HTTP (what the hosted deployment runs)
PORT=3003 FORMVAULT_API_URL=https://api.formvault.eu node dist/httpServer.js

To develop against a local FormVault API, point FORMVAULT_API_URL at it (for example http://localhost:3000).

Tools

About respondent data

list_submissions returns your respondents' personal data in the clear. It is described to the model with an instruction not to call it unless you explicitly ask for responses, so ordinary form-building work never pulls it into context.

That is a deliberate boundary, not a limitation. FormVault stores submissions encrypted with AES-256-GCM on servers in Nuremberg, Germany, with a signed DPA on every plan. Whatever you send to your AI provider is your decision — this server's job is to make sure it is a decision rather than a side effect.

Links

• formvault.eu/mcp
• Data processing agreement
• Privacy

Support

Questions and bug reports: open an issue. Pull requests are welcome.

License

MIT