aid: lemlist
name: lemlist
description: >-
  lemlist is a cold email outreach and sales engagement platform that helps
  sales teams build prospect lists, personalize multichannel campaigns across
  email and LinkedIn, and automate follow-ups to book more meetings. It
  includes a built-in B2B lead database, AI-generated personalization, and
  warm-up tools to keep deliverability healthy. The lemlist API enables
  developers to integrate lemlist with other tools and automate outreach
  workflows using API key authentication.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Email Outreach
  - Sales Engagement
  - Cold Email
  - Sales Automation
  - LinkedIn Outreach
  - Lead Generation
url: >-
  https://raw.githubusercontent.com/api-evangelist/lemlist/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
  - aid: lemlist:rest-api
    name: lemlist REST API
    description: >-
      REST API for managing campaigns, leads, sequences, teams, and outreach
      activities in lemlist. Authentication is via API key passed using HTTP
      Basic auth. The API supports integrating lemlist with CRMs and other
      tools and automating multichannel outreach workflows.
    humanURL: https://developer.lemlist.com
    baseURL: https://api.lemlist.com/api
    tags:
      - Email Outreach
      - Sales Engagement
      - Cold Email
      - Sales Automation
    properties:
      - type: Documentation
        url: https://developer.lemlist.com
      - type: Getting Started
        url: https://developer.lemlist.com/api-reference/overview
common:
  - type: Website
    url: https://www.lemlist.com
  - type: Documentation
    url: https://developer.lemlist.com
  - type: Pricing
    url: https://www.lemlist.com/pricing
  - type: Sign Up
    url: https://app.lemlist.com/signup
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com