Formstack

io.usefulapiv1.0.0Updated Sep 30, 2026

Browse Formstack forms, submissions and webhooks, search responses, and create submissions.

VerifiedStreamable HTTPWeb executableBusiness & CommerceProductivity & Workflow

Overview

AI-generated overview

Lets an assistant browse Formstack forms, submissions and webhooks, search responses, and create or update submissions.

What it does
A hosted MCP server for Formstack. Read tools list forms, form fields, folders, submissions, partial submissions, webhooks, notification and confirmation emails, and submit actions, plus get a single form, folder or submission, count submissions, and search submissions across all forms. Write tools create and update submissions, create a prefilled form link, update a form's settings, create a folder, and create a webhook. Two meta tools report usage status and manage the subscription.
When to use it
Use it when an assistant needs to work with Formstack form data: reviewing or searching submissions, inspecting form structure and webhooks, or programmatically creating and updating submissions and prefilled links.
Requirements
A remote endpoint at no local install. Requires a Formstack Personal Access Token (starts with fs_pat_), supplied on first connect and stored per user. Network access to the endpoint is needed.
Before you install
The server asks for a Formstack Personal Access Token, which is validated and stored per-user by the third-party host rather than kept in your config. Several tools write: creating and updating submissions, creating a prefilled form link, updating form settings, creating a folder, and creating a webhook. The free tier is limited to 100 tool calls per month, and a meta tool can upgrade to a paid Pro plan.

Installation

In SourceWeft

  1. Open Formstack in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

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

README

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

Add to Claude

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

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

ToolTypeWhat it does
formstack_list_formsreadList forms
formstack_get_formreadGet one form
formstack_list_form_fieldsreadList a form's fields
formstack_list_form_submissionsreadList a form's submissions
formstack_count_form_submissionsreadCount a form's submissions
formstack_search_submissionsreadSearch submissions across all forms
formstack_get_submissionreadGet one submission
formstack_list_partial_submissionsreadList a form's partial submissions
formstack_list_foldersreadList folders
formstack_get_folderreadGet one folder
formstack_list_webhooksreadList a form's webhooks
formstack_list_notification_emailsreadList a form's notification emails
formstack_list_confirmation_emailsreadList a form's confirmation emails
formstack_list_submit_actionsreadList a form's submit actions
formstack_create_submissionwriteCreate a submission
formstack_update_submissionwriteUpdate a submission
formstack_create_prefill_urlwriteCreate a prefilled form link
formstack_update_formwriteUpdate a form's settings
formstack_create_folderwriteCreate a folder
formstack_create_webhookwriteCreate a webhook
formstack_usage_statusmetaUsage status (free-tier meter)
formstack_upgrademetaUpgrade to Pro (unlimited)

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

Pricing

PlanPriceLimit
Free$0100 tool calls / month
Pro (per user)$9/mo or $90/yr (2 months free)Unlimited

License

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

Source: servers/formstack/README.md at commit 1ec23c2

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v1.0.0LatestSep 30, 2026