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, through a generic object interface where the record type is selected by an integer object type ID rather than by a path segment. Ontraport also runs a first-party remote MCP server at https://mcp.ontraport.com, publishing 47 tools across CRUD, query, management and commerce and authorizing them with OAuth 2.1 (PKCE, dynamic client registration) under a single mcp:tools scope.

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

The Ontraport catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Ontraport’s developer surface includes changelog, authentication, documentation, pricing, signup flow, support, engineering blog, and 36 more developer resources.

🌐 Visit website 📡 Source on GitHub

66.9/100 exemplar ▬ flat Agent 35/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

1 APIs 1 MCP Servers

CRM Marketing Automation Email Marketing E-Commerce Landing PagesMembership SitesMCP AI Agents Payments Sales Automation

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 66.9/100 · exemplar

Contract Quality 11.0 / 19

Developer Ergonomics 10.1 / 15

Access Clarity 12.8 / 15

Operational Transparency 6.2 / 10

Contract Governance 1.6 / 9

Discoverability 5.7 / 8

Regulatory Posture 9.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. 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. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 4

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.

Ontraport MCP Server

Ontraport's first-party, hosted, remote MCP server. A streamable-HTTP endpoint an agent POSTs to directly at https://mcp.ontraport.com — there is no package to install and no lo...

Open Collections 4

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

API Collection

OPEN COLLECTION

Ontraport REST Metadata API

OPEN COLLECTION

Ontraport REST Metadata Objects API

OPEN COLLECTION

Ontraport REST API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Ontraport MCP Server

Ontraport ships a first-party, hosted, remote MCP server at https://mcp.ontraport.com. It is a streamable-HTTP MCP endpoint an agent POSTs to directly — there is no package to i...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Ontraport Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Ontraport Rate Limits

1 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Ontraport Webhooks

ASYNCAPI

Security Posture 4

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

Ontraport Authentication

apiKey/oauth2 · 4 schemes

SECURITY

Ontraport Domain Security

TLSv1.3 · DMARC

SECURITY

Ontraport Vulnerability Disclosure

Hackerone

SECURITY

Ontraport Trust Center

PCI DSS, GDPR

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Ontraport Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Ontraport Agentic Access

11 operations · 5 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Signup

Signup

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

WellKnown

LLMsTxt

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

DataModel

Lifecycle

Conformance

Webhooks

Scroll for all 7

Build 6

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Packages

Packages

SDKs

SDKs

PostmanCollection

PostmanCollection

OpenCollection

OpenCollection

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

OAuthScopes

Compliance

TrustCenter

DomainSecurity

Authentication

Operate 5

Status, limits, changes, and where to get help

RateLimits

ChangeLog

StatusPage

Support

HelpCenter

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 5

The organization behind the API

LinkedIn

Website

Blog

About

Careers

Source (apis.yml)

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, through a generic object interface where the record type is selected by an integer object type ID rather
  than by a path segment. Ontraport also runs a first-party remote MCP server at https://mcp.ontraport.com, publishing 47
  tools across CRUD, query, management and commerce and authorizing them with OAuth 2.1 (PKCE, dynamic client registration)
  under a single mcp:tools scope.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
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
- E-Commerce
- Landing Pages
- Membership Sites
- MCP
- AI Agents
- Payments
- Sales Automation
tags_raw:
- CRM
- Marketing Automation
- Email Marketing
- Ecommerce
- Landing Pages
- Membership Sites
- MCP
- AI Agents
- Payments
- Sales Automation
url: https://raw.githubusercontent.com/api-evangelist/ontraport/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-08-13'
specificationVersion: '0.23'
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 26
  pass: local-v1
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
  - Transaction
  - Sequences
  tags_raw:
  - 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
  - type: Overlay
    url: overlays/ontraport-metadata-api-overlay.yaml
  - type: PostmanCollection
    url: collections/ontraport-metadata-api.postman_collection.json
  - type: OpenCollection
    url: collections/ontraport-metadata-api.opencollection.json
- 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
  - type: Overlay
    url: overlays/ontraport-objects-api-overlay.yaml
  - type: PostmanCollection
    url: collections/ontraport-objects-api.postman_collection.json
  - type: OpenCollection
    url: collections/ontraport-objects-api.opencollection.json
- aid: ontraport:mcp
  name: Ontraport MCP Server
  description: 'Ontraport''s first-party, hosted, remote MCP server. A streamable-HTTP endpoint an agent POSTs to directly
    at https://mcp.ontraport.com — there is no package to install and no local stdio process. It is a translation layer over
    the Ontraport REST API exposing 47 tools across four categories: generic CRUD, Query (structural discovery, engagement
    tracking, account health), Manage (tags, subscriptions, relationships, tasks) and Commerce (invoicing, payments, refunds,
    subscriptions). Authorization is OAuth 2.1 with PKCE S256 against https://app.ontraport.com under a single mcp:tools scope,
    with an Api-Appid/Api-Key header fallback for platforms that cannot run the OAuth flow.'
  humanURL: https://ontraport.com/support/My-account/mcp-server
  baseURL: https://mcp.ontraport.com
  tags:
  - MCP
  - AI Agents
  - CRM
  - Marketing Automation
  - Commerce
  properties:
  - type: MCPServer
    url: mcp/ontraport-mcp.yml
  - type: ToolCrosswalk
    url: mcp/ontraport-tool-crosswalk.yml
  - type: OAuthScopes
    url: scopes/ontraport-scopes.yml
  - type: Documentation
    url: https://ontraport.com/support/My-account/mcp-server
  - type: WellKnown
    url: well-known/ontraport-well-known.yml
common:
- type: AgenticAccess
  url: agentic-access/ontraport-agentic-access.yml
- type: MCPServer
  url: mcp/ontraport-mcp.yml
- type: ToolCrosswalk
  url: mcp/ontraport-tool-crosswalk.yml
- type: WellKnown
  url: well-known/ontraport-well-known.yml
- type: OAuthScopes
  url: scopes/ontraport-scopes.yml
- type: Packages
  url: packages/ontraport-packages.yml
- type: SDKs
  url: packages/ontraport-packages.yml
- type: LLMsTxt
  url: llms/ontraport-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/ontraport-conventions.yml
- type: Idempotency
  url: conventions/ontraport-conventions.yml
- type: ErrorCatalog
  url: errors/ontraport-problem-types.yml
- type: RateLimits
  url: rate-limits/ontraport-rate-limits.yml
- type: DataModel
  url: data-model/ontraport-data-model.yml
- type: ChangeLog
  url: changelog/ontraport-changelog.yml
- type: Lifecycle
  url: lifecycle/ontraport-lifecycle.yml
- type: StatusPage
  url: https://ontraportstatus.com
- type: Conformance
  url: conformance/ontraport-conformance.yml
- type: Compliance
  url: security/ontraport-trust-center.yml
- type: TrustCenter
  url: security/ontraport-trust-center.yml
- type: Webhooks
  url: asyncapi/ontraport-webhooks.yml
- type: Plans
  url: plans/ontraport-plans-pricing.yml
- type: PostmanCollection
  url: collections/ontraport.postman_collection.json
- type: OpenCollection
  url: collections/ontraport.opencollection.json
- 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
- type: APIReference
  url: https://api.ontraport.com/doc/
- type: DeveloperPortal
  url: https://ontraport.com/features/platform/api
- type: GettingStarted
  url: https://api.ontraport.com/doc/#authentication
- type: Login
  url: https://app.ontraport.com/login.php
- type: TermsOfService
  url: https://ontraport.com/legal
- type: PrivacyPolicy
  url: https://ontraport.com/legal
- type: HelpCenter
  url: https://ontraport.com/support
- type: About
  url: https://ontraport.com/about
- type: Careers
  url: https://ontraport.com/careers
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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