MailerLite Fields API

The Fields API from MailerLite — 1 operation(s) for fields.

Documentation 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 /api/fields List custom subscriber fields · List custom fields #

Ask an LLM

“Which custom fields are defined for my subscribers?”

“What extra subscriber data fields does my MailerLite account have?”

Tell an agent

List all custom subscriber fields.

Show me the custom fields I can store on subscribers.

POST /api/fields Add a custom subscriber field · Create a custom field #

Ask an LLM

“How do I add a new custom field to store extra subscriber data?”

“Can I create a custom field with a specific type, like a date or number?”

Tell an agent

Create a custom field named {name} of type {type}.

Add a {type} custom field called {name} for subscribers.

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OpenAPI Specification

openapi: 3.2.0
info:
  title: MailerLite Fields API
  description: The MailerLite REST API provides endpoints for managing subscribers, groups, segments, fields, campaigns, automations, forms, and webhooks. Authentication uses a Bearer token generated in the dashboard under Integrations > MailerLite API. All requests use JSON; rate-limited to 120 requests per minute per account.
  version: 1.0.0
  contact:
    name: MailerLite
    url: https://developers.mailerlite.com/docs/
servers:
- url: https://connect.mailerlite.com
  description: Production
security:
- BearerAuth: []
tags:
- name: Fields
paths:
  /api/fields:
    get:
      tags:
      - Fields
      summary: List custom fields
      operationId: listFields
      responses:
        '200':
          description: Fields
    post:
      tags:
      - Fields
      summary: Create a custom field
      operationId: createField
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - name
              - type
              properties:
                name:
                  type: string
                type:
                  type: string
                  enum:
                  - text
                  - number
                  - date
      responses:
        '201':
          description: Field
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Bearer token generated under Integrations > MailerLite API in the dashboard.