Formsite for AI agents
Formsite is a drag-and-drop form and survey builder with secure data capture and integrations for collecting responses, used by teams running registrations and surveys. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in Formsite.
Pull a form's results
Get a form's results to process new responses into a spreadsheet or CRM.
Check a form's configured items
Get a form's items to confirm which fields it collects before mapping a new integration.
Read-only webhook checks
Get a form's webhooks as a read-only step before troubleshooting a missed notification.
5 Formsite actions, graded by risk.
Every Formsite action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
5Look things up. Allowed by default.
- formsite.get_formGet Form Details
- formsite.get_webhooksGet Form Webhooks
- formsite.get_form_itemsGet Form Items
- formsite.list_all_formsList All Forms
- formsite.get_form_resultsGet Form Results
write
0Create and change things. Allow, or ask the user first.
- No write actions.
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
Formsite in three steps.
- 01Your users connect FormsiteThey add their Formsite api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, and writes like “updates” can wait for the user to approve.
- 03Any agent can actYour agent calls Formsite through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('formsite', { read: 'allow', write: 'ask', destructive: 'deny', }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Formsite connects.
Users add their Formsite api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same Formsite connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Formsite from any agent.
ClaudeChatGPTCursor
Codex
VS CodeOpenAI Agents SDKClaude Agent SDK
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Formsite and Arc0, answered.
Can I use Formsite with Claude, ChatGPT or Cursor?
Yes. Connect Formsite to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Formsite actions you allow.
How do users connect Formsite?
Users add their Formsite api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which Formsite actions can my agent take?
5 in total: 5 read, 0 write and 0 destructive. Your policies decide which of them each agent may call.
Can I make my agent read-only in Formsite?
Yes. Allow read actions and deny writes in the Formsite policy. Your agent can still look things up, and any write it attempts is blocked and logged.
Can my own backend call Formsite too?
Yes. The same Formsite connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Formsite into your agent.
Your users connect Formsite once, under your brand. Your agent gets 5 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan