lemlist

lemlist Leads API

Leads inside campaigns - create with optional enrichment, update, pause, resume, mark interested, custom variables, CRM import and unsubscribe.

GitHub OpenAPI

Operations 22

POST /leads/start/{leadId} Resume a paused Lead #
POST /leads/pause/{leadId} Pause a Lead #
POST /leads/interested/{leadIdOrEmail} Mark a Lead as interested #
POST /leads/notinterested/{leadIdOrEmail} Mark a Lead as not interested #
POST /campaigns/{campaignId}/leads/{leadIdOrEmail}/interested Mark a Lead as interested in one campaign #
POST /campaigns/{campaignId}/leads/{leadIdOrEmail}/notinterested Mark a Lead as not interested in one campaign #
GET /leads/{email} Retrieve Lead with email #
GET /leads Retrieve Lead with email or id #
POST /campaigns/{campaignId}/leads/{email} Create Lead in a Campaign #
DELETE /campaigns/{campaignId}/leads/{email} Unsubscribe Lead from Campaign #
PATCH /campaigns/{campaignId}/leads/{leadId} Update Lead #
DELETE /campaigns/{campaignId}/leads/{leadId} Delete Lead #
POST /leads/{leadId}/variables Add variables #
PATCH /leads/{leadId}/variables Update variables #
DELETE /leads/{leadId}/variables Delete variables #
POST /leads/audio Upload an audio file to a voice message step #
GET /crm/filters Get CRM filters #
POST /campaigns/{campaignId}/leads/import Import leads from CRM #
GET /campaigns/{campaignId}/leads/ Get Campaign Leads #
POST /campaigns/{campaignId}/leads/ Create Lead in Campaign #
DELETE /campaigns/{campaignId}/leads/ Unsubscribe Lead from Campaign #
POST /leads/review/{leadId} Launch Lead #

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/lemlist/refs/heads/main/openapi/lemlist-leads-api-openapi.yml

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OpenAPI Specification

lemlist-leads-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Lemlist Leads API
  version: 1.0.0
  description: 'Operations tagged Leads across 2 of this provider''s published API definitions: lemlist-openapi-v1-legacy.json, lemlist-openapi-v2.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.lemlist.com/api
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/lemlist/refs/heads/main/openapi/lemlist-leads-api-openapi.yml