Ontraport website screenshot

Ontraport

Ontraport is a business automation platform combining CRM, marketing automation, email marketing, landing pages, ecommerce, and membership site capabilities for small businesses and entrepreneurs. The platform unifies contact management, sales pipelines, payment processing, and visual automation campaigns in a single workspace. Ontraport's REST API exposes contacts, transactions, tags, sequences, forms, landing pages, and ecommerce objects using API-Key and Api-Appid header authentication.

Ontraport publishes 2 APIs on the APIs.io network: Metadata API and Objects API. Tagged areas include CRM, Marketing Automation, Email Marketing, Ecommerce, and Landing Pages.

Ontraport’s developer surface includes authentication, documentation, pricing, signup flow, support, engineering blog, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub
27.9/100 emerging ▬ flat Agent 28/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessSelf serve
3 APIs
CRMMarketing AutomationEmail MarketingEcommerceLanding PagesMembership Sites

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 27.9/100 · emerging
Contract Quality 12.5 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 2.1 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 28/100 · 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 0 / 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/ontraport: 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 3

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

Ontraport REST API

RESTful API providing CRUD access to contacts, transactions, tags, sequences, forms, landing pages, and ecommerce objects. Authentication uses two headers, Api-Key and Api-Appid...

Ontraport Metadata API

Object metadata and field information.

Ontraport Objects API

Generic CRUD operations across Ontraport object types.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Ontraport REST API

OPEN COLLECTION

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ontraport Authentication

apiKey · 2 schemes

SECURITY

Ontraport Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Ontraport Agentic Access

11 operations · 5 acting

11 operations · 5 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup
Signup

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

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: ontraport
name: Ontraport
description: Ontraport is a business automation platform combining CRM, marketing automation, email marketing, landing pages,
  ecommerce, and membership site capabilities for small businesses and entrepreneurs. The platform unifies contact management,
  sales pipelines, payment processing, and visual automation campaigns in a single workspace. Ontraport's REST API exposes
  contacts, transactions, tags, sequences, forms, landing pages, and ecommerce objects using API-Key and Api-Appid header
  authentication.
type: Index
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ontraport.png
tags:
- CRM
- Marketing Automation
- Email Marketing
- Ecommerce
- Landing Pages
- Membership Sites
url: https://raw.githubusercontent.com/api-evangelist/ontraport/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
- aid: ontraport:rest-api
  name: Ontraport REST API
  description: RESTful API providing CRUD access to contacts, transactions, tags, sequences, forms, landing pages, and ecommerce
    objects. Authentication uses two headers, Api-Key and Api-Appid, on every request, with a 180-requests-per-minute rolling
    rate limit.
  humanURL: https://api.ontraport.com/doc/
  baseURL: https://api.ontraport.com/1
  tags:
  - CRM
  - Marketing Automation
  - Contacts
  - Transactions
  - Sequences
  properties:
  - type: Documentation
    url: https://api.ontraport.com/doc/
  - type: Live Testing
    url: https://api.ontraport.com/live/
  - type: GitHub SDK
    url: https://github.com/Ontraport/SDK-PHP
- aid: ontraport:ontraport-metadata-api
  name: Ontraport Metadata API
  description: Object metadata and field information.
  humanURL: https://api.ontraport.com/doc/
  baseURL: https://api.ontraport.com/1
  tags:
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/ontraport-metadata-api-openapi.yml
- aid: ontraport:ontraport-objects-api
  name: Ontraport Objects API
  description: Generic CRUD operations across Ontraport object types.
  humanURL: https://api.ontraport.com/doc/
  baseURL: https://api.ontraport.com/1
  tags:
  - Objects
  properties:
  - type: OpenAPI
    url: openapi/ontraport-objects-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/ontraport-agentic-access.yml
- type: DomainSecurity
  url: security/ontraport-domain-security.yml
- type: Authentication
  url: authentication/ontraport-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/ontraport
- type: Website
  url: https://ontraport.com
- type: Documentation
  url: https://api.ontraport.com/doc/
- type: Pricing
  url: https://ontraport.com/pricing
- type: Signup
  url: https://ontraport.com/freetrial
- type: Support
  url: https://support.ontraport.com
- type: GitHubOrganization
  url: https://github.com/Ontraport
- url: https://ontraport.com/blog/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com