aid: formstack
url: https://raw.githubusercontent.com/api-evangelist/formstack/refs/heads/main/apis.yml
name: Formstack
kind: company
description: >-
  Formstack is a no-code workplace productivity platform spanning online forms,
  document generation, electronic signature, and workflow automation. The
  developer portal at developers.formstack.com exposes a REST API (v2025.0) for
  forms, submissions, fields, webhooks, folders, and partial submissions, plus
  product-specific surfaces for Formstack Documents, Formstack Sign, and
  Formstack Workflows. Authentication uses OAuth 2.0. Machine-readable indexes
  and OpenAPI artifacts are surfaced at developers.formstack.com/llms.txt.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Forms
  - Documents
  - eSignature
  - Workflow Automation
  - No-Code
  - OAuth2
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
apis:
  - aid: formstack:forms
    name: Formstack Forms API
    description: >-
      REST API for creating, reading, updating, and deleting forms in a
      Formstack account, including form configuration, styling, and access
      rules.
    humanURL: https://developers.formstack.com/reference/api-overview
    baseURL: https://www.formstack.com/api/v2
    tags:
      - Forms
      - REST
    properties:
      - type: Documentation
        url: https://developers.formstack.com/reference/api-overview
  - aid: formstack:submissions
    name: Formstack Submissions API
    description: >-
      Read, create, update, and delete form submissions; supports filtering by
      date, search, and field values. Returns submitted field data and
      metadata.
    humanURL: https://developers.formstack.com/reference/api-overview
    baseURL: https://www.formstack.com/api/v2
    tags:
      - Submissions
      - Data
    properties:
      - type: Documentation
        url: https://developers.formstack.com/reference/api-overview
  - aid: formstack:fields
    name: Formstack Fields API
    description: >-
      Programmatically manage form fields - text, select, file upload, signature,
      payment, calculation, and others - including ordering, validation, and
      conditional logic.
    humanURL: https://developers.formstack.com/reference/api-overview
    baseURL: https://www.formstack.com/api/v2
    tags:
      - Fields
      - Form Schema
    properties:
      - type: Documentation
        url: https://developers.formstack.com/reference/api-overview
  - aid: formstack:webhooks
    name: Formstack Webhooks API
    description: >-
      Configure webhook subscriptions to receive submission events at a
      customer-provided URL, with retry semantics for failed deliveries.
    humanURL: https://developers.formstack.com/reference/api-overview
    baseURL: https://www.formstack.com/api/v2
    tags:
      - Webhooks
      - Events
    properties:
      - type: Documentation
        url: https://developers.formstack.com/reference/api-overview
  - aid: formstack:folders
    name: Formstack Folders API
    description: >-
      Manage folder organization for forms within a Formstack account.
    humanURL: https://developers.formstack.com/reference/api-overview
    baseURL: https://www.formstack.com/api/v2
    tags:
      - Folders
      - Organization
    properties:
      - type: Documentation
        url: https://developers.formstack.com/reference/api-overview
  - aid: formstack:documents
    name: Formstack Documents API
    description: >-
      Programmatic interface to Formstack Documents (formerly WebMerge) for
      generating PDFs, Word docs, and other templated documents from data
      payloads.
    humanURL: https://developers.formstack.com/
    baseURL: https://www.webmerge.me/api
    tags:
      - Documents
      - Document Generation
      - PDF
    properties:
      - type: Documentation
        url: https://developers.formstack.com/
  - aid: formstack:sign
    name: Formstack Sign API
    description: >-
      Electronic signature API for sending documents for signature, tracking
      status, and retrieving signed copies. Part of the Formstack Suite.
    humanURL: https://developers.formstack.com/
    baseURL: https://www.formstack.com/api/v2
    tags:
      - eSignature
      - Sign
    properties:
      - type: Documentation
        url: https://developers.formstack.com/
  - aid: formstack:workflows
    name: Formstack Workflows API
    description: >-
      Workflow automation surface for routing submissions, documents, and
      approvals across multi-step business processes.
    humanURL: https://developers.formstack.com/
    baseURL: https://www.formstack.com/api/v2
    tags:
      - Workflows
      - Automation
    properties:
      - type: Documentation
        url: https://developers.formstack.com/
  - aid: formstack:oauth2
    name: Formstack OAuth 2.0
    description: >-
      OAuth 2.0 authorization server used to authenticate API clients and
      issue access tokens for the Formstack REST API.
    humanURL: https://developers.formstack.com/reference/oauth2-authentication
    baseURL: https://www.formstack.com/api/v2/oauth2
    tags:
      - OAuth2
      - Authentication
    properties:
      - type: Documentation
        url: https://developers.formstack.com/reference/oauth2-authentication
common:
  - type: Website
    url: https://www.formstack.com/
  - type: Documentation
    url: https://developers.formstack.com/
  - type: Changelog
    url: https://developers.formstack.com/changelog
  - type: LLMsTxt
    url: https://developers.formstack.com/llms.txt
  - type: LinkedIn
    url: https://www.linkedin.com/company/formstack
  - type: GitHub
    url: https://github.com/formstack
  - type: Twitter
    url: https://twitter.com/Formstack
integrations:
  - name: Salesforce
  - name: HubSpot
  - name: Microsoft Dynamics 365
  - name: Google Workspace
  - name: Slack
  - name: Stripe
  - name: PayPal
  - name: Zapier
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com