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OpenAPI

The complete Reply.io API specification is available in OpenAPI 3.1 format. You can use this specification to generate client libraries, explore the API structure, or import into your favorite API tools.

View OpenAPI Spec

Open the complete OpenAPI specification (YAML)

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Postman

Import the Reply.io API collection into Postman for easy testing and exploration.

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What’s Included

The collection includes:
  • All Reply.io API endpoints - Sequences, Contacts, Email Accounts, Templates, and more
  • Environment template - Pre-configured variables for quick setup
  • Authentication headers - API key configuration ready to use

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Setup

1

Get Your API Key

  1. Log in to your Reply.io account
  2. Navigate to Settings → API Key
  3. Create a new API key or copy an existing one
2

Import Collection

  1. Open Postman
  2. Click Import in the top left
  3. Select Link and paste:
  4. Click Import to add the collection
3

Configure Environment

Create a new environment in Postman with these variables:
VariableDescriptionExample
baseUrlAPI endpoint
apiKeyYour Reply.io API key************
4

Set Authentication

The API uses API key authentication. Set up your requests:Option 1: Header
X-Api-Key: {{apiKey}}
Option 2: Query Parameter
?apiKey={{apiKey}}

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Quick Test

Once configured, try a simple request to verify your setup: 
GET https://api.reply.io/v3/whoami
X-Api-Key: your_api_key_here
You should receive your id if everything is configured correctly.