Insider

Insider One Architect Transactional Journey API

The On API Call starter: enter a user into a transactional Architect journey from your backend and send in real time.

Documentation GitHub OpenAPI

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/insider-one-architect-transactional-journey-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.1.0
info:
  title: Insider One Architect Transactional Journey API
  version: 1.0.0
  description: 'The On API Call starter: allow backend systems to explicitly enter users into a transactional Architect
    journey and send messages in real time.


    Derived by API Evangelist from the Insider One APIs overview table published at https://academy.insiderone.com/docs/insider-one-apis-1.
    This endpoint is documented by Insider One but is not part of the public Postman collection, so only the host,
    path and method are asserted here.'
  contact:
    name: Insider One Support
    email: support@useinsider.com
    url: https://academy.insiderone.com/docs/insider-one-apis-1
  termsOfService: https://insiderone.com/terms-of-use/
externalDocs:
  description: On API Call Starter
  url: https://academy.insiderone.com/docs/transactional-journeys-on-api-call-starter
servers:
- url: https://architect.useinsider.com
tags:
- name: Transactional Journeys
paths:
  /v1/transactional/send:
    post:
      operationId: sendTransactionalJourney
      summary: On API Call starter — enter a user into a transactional journey
      description: Allows backend systems to explicitly enter users into a transactional journey and send messages
        in real time. Launch settings for the journey define how it accepts API-triggered requests.
      tags:
      - Transactional Journeys
      security:
      - RequestToken: []
      - PartnerName: []
      responses:
        '429':
          $ref: '#/components/responses/TooManyRequests'
components:
  securitySchemes:
    InsiderApiKey:
      type: apiKey
      in: header
      name: X-INSIDER-API-KEY
      description: Insider One API key for this API.
  responses:
    TooManyRequests:
      description: Too Many Requests. The published per-endpoint rate limit was exceeded; back off and retry, honouring
        Retry-After when present.
      content:
        application/json:
          example:
            message: Too Many Requests
            status: 429
x-provenance:
  generated: '2026-08-13'
  method: derived
  source: https://academy.insiderone.com/docs/insider-one-apis-1
  note: Host/path/method verbatim from the Insider One APIs overview table; request and response shapes are not
    published for this endpoint.