airSlate

airSlate is a document workflow automation holding company whose product family covers no-code workflow automation (altaFlow, formerly airSlate WorkFlow), electronic signature (signNow), PDF editing and form filling (pdfFiller and DocHub), legal forms (US Legal Forms), landing pages (Instapage), and an AI-powered marketing intelligence platform. Developer APIs are exposed primarily through the signNow and pdfFiller product lines; WorkFlow / altaFlow surfaces automation bots and integrations rather than a broad public REST API.

airSlate publishes 11 APIs on the APIs.io network, including Document Fields API, Document Groups API, Documents API, and 8 more. Tagged areas include Document Automation, eSignature, Workflow, PDF, and No-Code.

airSlate’s developer surface includes authentication, engineering blog, documentation, GitHub presence, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

34.3/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreeSelf serve⚡ Free to try

18 APIs

Document AutomationeSignatureWorkflowPDFNo-CodeAI

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 34.3/100 · thin

Contract Quality 13.4 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 5.8 / 20

Operational Transparency 3.4 / 13

Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 31/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/airslate: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 18

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Airslate Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Company 4

The organization behind the API

Blog

Blog

Website

Website

LinkedIn

Twitter

Twitter

Source (apis.yml)

aid: airslate
url: https://raw.githubusercontent.com/api-evangelist/airslate/refs/heads/main/apis.yml
name: airSlate
kind: company
description: airSlate is a document workflow automation holding company whose product family covers no-code workflow automation
  (altaFlow, formerly airSlate WorkFlow), electronic signature (signNow), PDF editing and form filling (pdfFiller and DocHub),
  legal forms (US Legal Forms), landing pages (Instapage), and an AI-powered marketing intelligence platform. Developer APIs
  are exposed primarily through the signNow and pdfFiller product lines; WorkFlow / altaFlow surfaces automation bots and
  integrations rather than a broad public REST API.
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/airslate.png
tags:
- Document Automation
- eSignature
- Workflow
- PDF
- No-Code
- AI
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
apis:
- aid: airslate:workflow
  name: airSlate WorkFlow (altaFlow)
  description: No-code document workflow automation platform (recently rebranded as altaFlow). Supports building workflows
    that combine forms, contracts, bots, and integrations across CRM and ERP systems. Developer access is primarily via prebuilt
    bots and integration connectors.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Workflow Automation
  - No-Code
  - Bots
  properties:
  - type: Website
    url: https://www.airslate.com/workflow
- aid: airslate:signnow
  name: signNow API
  description: REST API for signNow, airSlate's electronic signature product. Covers documents, signatures, templates, users,
    groups, fields, and webhooks. Supports OAuth 2.0 with production base api.signnow.com and evaluation base api-eval.signnow.com.
  humanURL: https://docs.signnow.com/
  baseURL: https://api.signnow.com
  tags:
  - eSignature
  - REST
  - OAuth2
  properties:
  - type: Documentation
    url: https://docs.signnow.com/
- aid: airslate:pdffiller
  name: pdfFiller API
  description: REST API for pdfFiller, covering document upload and conversion, form filling, templates, and e-signature flows.
    Used to embed PDF editing and form workflows into third-party applications.
  humanURL: https://www.pdffiller.com/en/api
  baseURL: https://api.pdffiller.com/v2
  tags:
  - PDF
  - Forms
  - Document Editing
  properties:
  - type: Documentation
    url: https://www.pdffiller.com/en/api
- aid: airslate:dochub
  name: DocHub
  description: Cloud PDF editor that integrates with Google Workspace. Provides editing, signing, and sharing of PDFs from
    inside Google apps. Programmatic access is primarily via Google Workspace integration surfaces.
  humanURL: https://dochub.com/
  baseURL: https://dochub.com/
  tags:
  - PDF
  - Google Workspace
  properties:
  - type: Website
    url: https://dochub.com/
- aid: airslate:us-legal-forms
  name: US Legal Forms
  description: Online catalog of 85,000+ state-specific legal forms. Consumer and SMB product; no public developer API.
  humanURL: https://www.uslegalforms.com/
  baseURL: https://www.uslegalforms.com/
  tags:
  - Legal Forms
  properties:
  - type: Website
    url: https://www.uslegalforms.com/
- aid: airslate:instapage
  name: Instapage
  description: Landing page builder and personalization platform. Offers REST endpoints for account integration via the Instapage
    developer surface.
  humanURL: https://instapage.com/
  baseURL: https://instapage.com/
  tags:
  - Landing Pages
  - Marketing
  properties:
  - type: Website
    url: https://instapage.com/
- aid: airslate:marketing-intelligence
  name: airSlate Marketing Intelligence Platform
  description: AI-powered automation platform for end-to-end marketing operations. Positioned as a vertical AI product rather
    than a developer API.
  humanURL: https://www.airslate.com/
  baseURL: https://www.airslate.com/
  tags:
  - AI
  - Marketing
  properties:
  - type: Website
    url: https://www.airslate.com/
- aid: airslate:airslate-document-fields-api
  name: airSlate Document Fields API
  description: The Document Fields API from airSlate — 3 operation(s) for document fields.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Document Fields
  properties:
  - type: OpenAPI
    url: openapi/airslate-document-fields-api-openapi.yml
- aid: airslate:airslate-document-groups-api
  name: airSlate Document Groups API
  description: The Document Groups API from airSlate — 4 operation(s) for document groups.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Document Groups
  properties:
  - type: OpenAPI
    url: openapi/airslate-document-groups-api-openapi.yml
- aid: airslate:airslate-documents-api
  name: airSlate Documents API
  description: The Documents API from airSlate — 7 operation(s) for documents.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/airslate-documents-api-openapi.yml
- aid: airslate:airslate-embedded-api
  name: airSlate Embedded API
  description: The Embedded API from airSlate — 3 operation(s) for embedded.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Embedded
  properties:
  - type: OpenAPI
    url: openapi/airslate-embedded-api-openapi.yml
- aid: airslate:airslate-folders-api
  name: airSlate Folders API
  description: The Folders API from airSlate — 2 operation(s) for folders.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Folders
  properties:
  - type: OpenAPI
    url: openapi/airslate-folders-api-openapi.yml
- aid: airslate:airslate-invites-api
  name: airSlate Invites API
  description: The Invites API from airSlate — 5 operation(s) for invites.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Invites
  properties:
  - type: OpenAPI
    url: openapi/airslate-invites-api-openapi.yml
- aid: airslate:airslate-oauth-api
  name: airSlate OAuth API
  description: The OAuth API from airSlate — 1 operation(s) for oauth.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - OAuth
  properties:
  - type: OpenAPI
    url: openapi/airslate-oauth-api-openapi.yml
- aid: airslate:airslate-smart-fields-api
  name: airSlate Smart Fields API
  description: The Smart Fields API from airSlate — 1 operation(s) for smart fields.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Smart Fields
  properties:
  - type: OpenAPI
    url: openapi/airslate-smart-fields-api-openapi.yml
- aid: airslate:airslate-templates-api
  name: airSlate Templates API
  description: The Templates API from airSlate — 4 operation(s) for templates.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/airslate-templates-api-openapi.yml
- aid: airslate:airslate-users-api
  name: airSlate Users API
  description: The Users API from airSlate — 3 operation(s) for users.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/airslate-users-api-openapi.yml
- aid: airslate:airslate-webhooks-api
  name: airSlate Webhooks API
  description: The Webhooks API from airSlate — 2 operation(s) for webhooks.
  humanURL: https://www.airslate.com/workflow
  baseURL: https://www.airslate.com/workflow
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/airslate-webhooks-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/airslate-agentic-access.yml
- type: DomainSecurity
  url: security/airslate-domain-security.yml
- type: Authentication
  url: authentication/airslate-authentication.yml
- url: https://blog.airslate.com/feed/
  type: Blog
- type: Website
  url: https://www.airslate.com/
- type: Documentation
  url: https://docs.signnow.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/airslate
- type: GitHub
  url: https://github.com/signnow
- type: Twitter
  url: https://twitter.com/airSlate_
integrations:
- name: Salesforce
- name: Microsoft Dynamics 365
- name: NetSuite
- name: HubSpot
- name: Google Workspace
- name: Microsoft 365
- name: Dropbox
- name: Box
- name: Slack
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com