Formstack MCP by usefulapi

Formstack MCP by usefulapi

Use Formstack from Claude, Cursor, or any MCP client — browse forms, submissions and webhooks, search responses, and create or update submissions. Hosted, no local install: connect with your own Formstack credentials.

Live endpoint: https://formstack.usefulapi.io/mcp · Homepage: https://usefulapi.io/formstack

Connect

• Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://formstack.usefulapi.io/mcp.
• Claude Code: claude mcp add --transport http formstack https://formstack.usefulapi.io/mcp, then run /mcp to log in.
• VS Code: Add to VS Code.
• Cursor and other clients: add the URL as a remote MCP server:

{
  "mcpServers": {
    "formstack": {
      "url": "https://formstack.usefulapi.io/mcp"
    }
  }
}

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Formstack credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/formstack/

On first connect you'll provide your Formstack Personal Access Token (account menu → API → Personal Access Tokens, starts with fs_pat_). They're validated, stored per-user, and scoped to you — no keys in config files.

Tools

Tool	Type	What it does
formstack_list_forms	read	List forms
formstack_get_form	read	Get one form
formstack_list_form_fields	read	List a form's fields
formstack_list_form_submissions	read	List a form's submissions
formstack_count_form_submissions	read	Count a form's submissions
formstack_search_submissions	read	Search submissions across all forms
formstack_get_submission	read	Get one submission
formstack_list_partial_submissions	read	List a form's partial submissions
formstack_list_folders	read	List folders
formstack_get_folder	read	Get one folder
formstack_list_webhooks	read	List a form's webhooks
formstack_list_notification_emails	read	List a form's notification emails
formstack_list_confirmation_emails	read	List a form's confirmation emails
formstack_list_submit_actions	read	List a form's submit actions
formstack_create_submission	write	Create a submission
formstack_update_submission	write	Update a submission
formstack_create_prefill_url	write	Create a prefilled form link
formstack_update_form	write	Update a form's settings
formstack_create_folder	write	Create a folder
formstack_create_webhook	write	Create a webhook
formstack_usage_status	meta	Usage status (free-tier meter)
formstack_request_feature	meta	Request a missing feature
formstack_upgrade	meta	Upgrade to Pro (unlimited*)
formstack_cancel_subscription	meta	Cancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Pro (per user)	$9/mo or $90/yr (2 months free)	Unlimited*

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with formstack_upgrade (it returns a Stripe Checkout link). Cancel any time with formstack_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running formstack_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT © usefulapi. Not affiliated with or endorsed by Formstack.