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Formstack MCP by usefulapi

by m190version 1.37.2i★ –iRuns in the cloud
Registry nameio.usefulapi/formstack

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 3 of 3 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • Can do 21 things (tools) formstack_list_forms, formstack_get_form, formstack_list_form_fields, formstack_list_form_submissions …
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://formstack.usefulapi.io/mcp

Run this in your terminal

claude mcp add --transport http formstack https://formstack.usefulapi.io/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://formstack.usefulapi.io/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • formstack_list_forms

    List the forms in the account, with submission counts, live URL and folder. Filter by name or folder and sort. Formstack: GET /forms.

  • formstack_get_form

    Fetch a form's details — name, URL, submission counts, settings — optionally with its full field list. Formstack: GET /forms/{formId}.

  • formstack_list_form_fields

    List every field on a form — id, label, type, required flag, options and logic. Use this to learn field IDs before searching or creating submissions. Formstack: GET /forms/{formId}/fields.

  • formstack_list_form_submissions

    List a form's submissions, newest or oldest first, filtered by keyword, date range or specific field values. Set include_data to get the answers. Formstack: GET /forms/{formId}/submissions.

  • formstack_count_form_submissions

    Count a form's submissions, with a per-day breakdown over a lookback window of up to 7 days. Formstack: GET /forms/{formId}/submissions/count.

  • formstack_search_submissions

    Full-text search for submissions across every form in the account, e.g. by a person's email or name. Formstack: GET /submissions.

  • formstack_get_submission

    Fetch a single submission with every field's label, type, display value and parsed value, plus payment, approval and workflow status. Formstack: GET /submissions/{submissionId}.

  • formstack_delete_submission

    Permanently delete ONE submission and all associated data. First call with submission_id and its expected form_id to preview. Show the preview to the user and obtain their explicit confirmation, then call the SAME ids with confirm:true and the returned preview_token within 15 min

  • formstack_list_partial_submissions

    List entries respondents started but did not finish (Save & Resume / abandoned), with the same filters as submissions. Formstack: GET /form/{formId}/partialsubmission.

  • formstack_list_folders

    List the account's form folders and their subfolders. Formstack: GET /folders.

  • formstack_get_folder

    Fetch a folder with its parent, permissions and direct subfolders. Formstack: GET /folders/{folderId}.

  • formstack_list_webhooks

    List the webhooks that push a form's submissions to external URLs, with their payload settings. Formstack: GET /forms/{formId}/webhooks.

  • formstack_list_notification_emails

    List the notification emails that alert your team when a form is submitted — recipients, subject, sender and logic. Formstack: GET /forms/{formId}/notifications.

  • formstack_list_confirmation_emails

    List the confirmation emails sent to the person who submits a form — sender, subject, message and delay. Formstack: GET /forms/{formId}/confirmations.

  • formstack_list_submit_actions

    List what happens after a form is submitted — default processing, a custom message, or a redirect URL — with conditional logic. Formstack: GET /forms/{formId}/submitactions.

  • formstack_create_submission

    Submit an entry to a form on someone's behalf. This is a real submission: it counts toward the form and can fire its notification emails, webhooks and integrations. Formstack: POST /forms/{formId}/submissions.

  • formstack_update_submission

    Change field values on an existing submission, or mark it read/unread. Only the fields you pass are changed. Formstack: PUT /submissions/{submissionId}.

  • formstack_create_prefill_url

    Generate a link to a live form with some fields already filled in — e.g. to send a customer a form with their name and account number pre-entered. Formstack stores the prefill and returns prefilledUrl. Formstack: POST /forms/{formId}/prefill.

  • formstack_update_form

    Rename a form, move it to a folder, change its submit-button text, timezone or language, or activate/deactivate it (with a message shown while inactive). Reversible. Formstack: PUT /forms/{formId}.

  • formstack_create_folder

    Create a folder for organising forms, at the root or inside a parent folder. Formstack: POST /folders.

  • formstack_create_webhook

    Add a webhook that POSTs each new submission of a form to your URL. Formstack: POST /forms/{formId}/webhooks.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 12 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 21 tool descriptions and found no hidden instructions to the AI

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7258 servers in this category
  • Published to the registry more recently than 100% of the other 7258 servers in this category
  • Basic checks equal to or better than 100% of the other 7258 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Formstack MCP by usefulapi safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.37.2) reached the registry today.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated today
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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

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_delete_submissionwritePreview or delete 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_request_featuremetaRequest a missing feature
formstack_upgrademetaUpgrade to Pro or Pro+
formstack_cancel_subscriptionmetaCancel 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

PlanPriceLimit
Free$050 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 support@usefulapi.io.

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 support@usefulapi.io.

License

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

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