HighLevel Messages API

Documentation for Conversations API

GitHub OpenAPI

Operations 16

GET /conversations/messages/export Export messages by location ID #
GET /conversations/messages/{id} Get message by message id #
GET /conversations/{conversationId}/messages Get messages by conversation id #
POST /conversations/messages Send a new message #
POST /conversations/messages/inbound Add an inbound message #
POST /conversations/messages/outbound Add an external outbound call #
POST /conversations/messages/review-reply Send a review reply to Google My Business #
DELETE /conversations/messages/{messageId}/schedule Cancel a scheduled message #
POST /conversations/messages/upload Upload file attachments #
POST /conversations/messages/upload/initiate Initiate file upload to GCS #
POST /conversations/messages/upload/complete Complete file upload #
PUT /conversations/messages/{messageId}/status Update message status #
PUT /conversations/messages/{messageId}/attachments Add message attachments #
GET /conversations/messages/{messageId}/locations/{locationId}/recording Get Recording by Message ID #
GET /conversations/locations/{locationId}/messages/{messageId}/transcription Get transcription by Message ID #
GET /conversations/locations/{locationId}/messages/{messageId}/transcription/download Download transcription by Message ID #

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/highlevel:highlevel-messages-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

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

OpenAPI Specification

highlevel-messages-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Conversations Messages API
  description: Documentation for Conversations API
  version: '1.0'
  contact: {}
servers:
- url: https://services.leadconnectorhq.com
tags:


# --- truncated at 32 KB (56 KB total) ---
# Full source: https://artifacts.apis.io/highlevel/openapi/highlevel-messages-api-openapi.yml