For AI agents: visit https://developers.formstack.com/llms.txt for an index of all pages formatted in Markdown and endpoints in OpenAPI.
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API ReferenceChangelog
Formstack
API Reference

Getting Started

  • Overview
  • Authentication

Formstack API v2025.0

  • Confirmation Emails
    • /confirmations/{confirmationId}get
    • /confirmations/{confirmationId}put
    • /confirmations/{confirmationId}del
    • /forms/{formId}/confirmationsget
    • /forms/{formId}/confirmationspost
  • Folders
    • /folders/{folderId}get
    • /folders/{folderId}put
    • /folders/{folderId}del
    • /foldersget
    • /folderspost
  • Notification Emails
    • /notifications/{notificationId}get
    • /notifications/{notificationId}put
    • /notifications/{notificationId}del
    • /forms/{formId}/notificationsget
    • /forms/{formId}/notificationspost
  • Fields
    • /forms/{formId}/fields/{fieldId}get
    • /forms/{formId}/fields/{fieldId}put
    • /forms/{formId}/fields/{fieldId}del
    • /forms/{formId}/fieldsget
    • /forms/{formId}/fieldspost
  • Forms
    • /forms/{formId}get
    • /forms/{formId}put
    • /forms/{formId}del
    • /formsget
    • /formspost
    • /forms/{formId}/copypost
    • /forms/{formId}/prefillpost
    • /forms/{formId}/htmlget
  • Smart List
    • /smartlists/{smartListId}/bulkoptionspost
    • /smartlistsget
    • /smartlistspost
    • /smartlists/{smartListId}get
    • /smartlists/{smartListId}put
    • /smartlists/{smartListId}del
    • /smartlists/{smartListId}/optionspost
    • /smartlists/{smartListId}/options/{optionId}put
    • /smartlists/{smartListId}/options/{optionId}/imagepost
  • PartialSubmissions
    • /partialsubmission/{partialSubmissionId}get
    • /partialsubmission/{partialSubmissionId}del
    • /form/{formId}/partialsubmissionget
  • Smart List Options
    • /smartlists/{smartListId}/optionsget
    • /smartlists/{smartListId}/alloptionsdel
    • /smartlists/{smartListId}/options/{optionId}get
    • /smartlists/{smartListId}/options/{optionId}del
    • /smartlists/{smartListId}/options/{optionId}/imagedel
  • Portals
    • /portal/{portalId}/avatarpost
    • /portal/{portalId}/avatardel
    • /portal/{portalId}/copypost
    • /portal/{portalId}/formpost
    • /portal/{portalId}/userpost
    • /portal/{portalId}get
    • /portal/{portalId}put
    • /portal/{portalId}del
    • /portal/{portalId}/form/{formId}put
    • /portal/{portalId}/form/{formId}del
    • /portal/{portalId}/user/{userId}put
    • /portal/{portalId}/user/{userId}del
    • /portalget
  • Submit Actions
    • /forms/{formId}/integrations/webmergepost
    • /forms/{formId}/submitactionsget
    • /forms/{formId}/submitactionspost
    • /forms/{formId}/submitactions/{submitActionId}get
    • /forms/{formId}/submitactions/{submitActionId}put
    • /forms/{formId}/submitactions/{submitActionId}del
  • Subaccounts
    • /subaccount/{subaccountId}/themes/{themeId}del
    • /subaccount/{subaccountId}/form/{formId}/copypost
    • /subaccountget
    • /subaccount/{subaccountId}/forms/{formId}/themeput
    • /subaccount/{subaccountId}/theme/{themeId}/copypost
    • /subaccount/{subaccountId}/themes/{themeId}/formsget
    • /subaccount/{subaccountId}/themesget
  • Submissions
    • /forms/{formId}/submissions/countget
    • /forms/{formId}/submissionsget
    • /forms/{formId}/submissionspost
    • /submissions/{submissionId}get
    • /submissions/{submissionId}put
    • /submissions/{submissionId}del
    • /submissions/{submissionId}/uploadget
    • /submissionsget
    • /forms/{formId}/fields/{fieldId}/upload-urlspost
  • Themes
    • /forms/{formId}/themeput
    • /themes/{themeId}/copypost
    • /themes/{themeId}del
    • /themesget
  • Webhooks
    • /forms/{formId}/webhooksget
    • /forms/{formId}/webhookspost
    • /forms/{formId}/webhooks/{webhookId}get
    • /forms/{formId}/webhooks/{webhookId}put
    • /forms/{formId}/webhooks/{webhookId}del
    • /forms/{formId}/webhooks/openapiget
  • Submit Actions

Partner API

  • Partner API Reference
    • /organizations/{organizationId}/subaccountsget
    • /organizations/{organizationId}/subaccounts/{subaccountId}/sso/configget
    • /organizations/{organizationId}/subaccounts/{subaccountId}/app-api-keysget
    • Subaccount Billing
      • /organizations/{organizationId}/subaccounts/productsget
      • /organizations/{organizationId}/subaccounts/previewpost
      • /organizations/{organizationId}/subaccountspost
    • /organizations/{organizationId}/subaccounts/{subaccountId}/memberships/{membershipId}/personalAccessTokenspost
    • /organizations/{organizationId}/subaccounts/{subaccountId}/memberships/{membershipId}/personalAccessTokens/{patId}del
    • /organizations/{organizationId}/subaccounts/{subaccountId}get
    • /organizations/{organizationId}/subaccounts/{subaccountId}/membershipsget
    • /organizations/{organizationId}/subaccounts/{subaccountId}/memberships/{membershipId}patch
    • /organizations/{organizationId}/subaccounts/{subaccountId}/memberships/{membershipId}/personalAccessTokensget
    • /organizations/{organizationId}/subaccounts/{subaccountId}patch
  • Subaccount Provisioning through Partner REST API
  • Subaccount Product Catalog
  • Overview
  • Authentication
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PartialSubmissions

Partial submissions capture form data that a respondent entered but did not finish submitting (Save & Resume / abandoned entries). Use these endpoints to list and search a form's partial submissions, retrieve the details of one, and delete partial submissions.

Updated about 1 month ago


/smartlists/{smartListId}/options/{optionId}/image
/partialsubmission/{partialSubmissionId}

Updated about 1 month ago


/smartlists/{smartListId}/options/{optionId}/image
/partialsubmission/{partialSubmissionId}