lemlist

lemlist Stats API

The Stats API from lemlist — 2 operation(s) for stats.

GitHub OpenAPI

Operations 2

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

GET /campaigns/{campaignId}/stats Get a campaign's stats (original version) · Campaign stats #
Ask an LLM
“Can I still get campaign stats from the original v1 endpoint with a timezone?”
“Which legacy call returns a campaign's totals for a date window in my timezone?”
Tell an agent
Using the original stats endpoint, get campaign {campaignId} stats from {startDate} to {endDate} in {timezone}.
Pull legacy v1 stats for campaign {campaignId}.
GET /v2/campaigns/{campaignId}/stats Get a campaign's stats by channel and A/B version · Campaign stats V2 #
Ask an LLM
“How do I break down a campaign's v2 stats by sender or channel?”
“Can I compare A/B versions in the newer campaign stats?”
Tell an agent
Get v2 stats for campaign {campaignId} on channels {channels}.
Show campaign {campaignId} v2 results for sender {sendUser}, version {ABSelected}, {startDate} to {endDate}.

Specifications

⚙
OpenAPI
https://artifacts.apis.io/lemlist/openapi/lemlist-stats-api-openapi.yml

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/lemlist:lemlist-stats-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.

GitHub Google LinkedIn

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

OpenAPI Specification

lemlist-stats-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: lemlist Stats API
  version: 1.0.0
  description: Welcome to the lemlist Developer Documentation.
servers:
- url: https://api.lemlist.com/api
tags:
- name: Stats
paths:
  /campaigns/{campaignId}/stats:
    parameters:
    - name: campaignId
      in: path
      required: true
      example: '{{campaignId}}'
      schema:
        type: string
    get:
      summary: Campaign stats
      tags:
      - Stats
      parameters:
      - name: startDate
        in: query
        required: false
        example: '2024-01-07T22:00:00.000Z'
        schema:
          type: integer
      - name: endDate
        in: query
        required: false
        example: '2024-07-10T21:59:59.999Z'
        schema:
          type: integer
      - name: timezone
        in: query
        required: false
        example: Europe/Paris
        schema:
          type: string
      - name: Content
        in: header
        required: false
        example: application/json
        schema:
          type: string
      responses:
        default:
          headers:
            Content-Type:
              schema:
                type: string
              example: application/json
          description: Campaign stats
          content:
            application/json:
              schema:
                type: object
                properties:
                  leadTotal:
                    type: integer
                  leadToLaunch:
                    type: integer
                  leadReadyToSend:
                    type: integer
                  leadInProgress:
                    type: integer
                  leadCompleted:
                    type: integer
                  sentCount:
                    type: integer
                  deliveredCount:
                    type: integer
                  openedCount:
                    type: integer
                  clickedCount:
                    type: integer
                  repliedCount:
                    type: integer
                  interestedCount:
                    type: integer
              example:
                leadTotal: 0
                leadToLaunch: 0
                leadReadyToSend: 0
                leadInProgress: 0
                leadCompleted: 0
                sentCount: 0
                deliveredCount: 0
                openedCount: 0
                clickedCount: 0
                repliedCount: 0
                interestedCount: 0
      operationId: getCampaignsByCampaignIdStats
      x-operation-id-source: derived
  /v2/campaigns/{campaignId}/stats:
    parameters:
    - name: campaignId
      in: path
      required: true
      example: '{{campaignId}}'
      schema:
        type: string
    get:
      summary: Campaign stats V2
      tags:
      - Stats
      parameters:
      - name: startDate
        in: query
        required: false
        example: '2024-01-07T22:00:00.000Z'
        schema:
          type: integer
      - name: endDate
        in: query
        required: false
        example: '2025-07-10T21:59:59.999Z'
        schema:
          type: integer
      - name: sendUser
        in: query
        required: false
        example: usr_b62rnsjxu236ttSH3|email@example.com
        schema:
          type: string
      - name: ABSelected
        in: query
        required: false
        example: A
        schema:
          type: string
      - name: channels
        in: query
        required: false
        example: '["others", "linkedin", "email"]'
        schema:
          type: string
      - name: Content
        in: header
        required: false
        example: application/json
        schema:
          type: string
      responses:
        default:
          headers: {}
          description: Campaign stats V2
      operationId: getV2CampaignsByCampaignIdStats
      x-operation-id-source: derived