SMTP2GO

SMTP2GO SMTP Users API

SMTP user account management

GitHub OpenAPI

Operations 5

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

POST /users/smtp/add Create an SMTP user · Add an SMTP user #
Ask an LLM
“How do I create new SMTP credentials for an application?”
“Can a new SMTP user get its own rate limit and password?”
Tell an agent
Create SMTP user {username}.
Add SMTP user {username} with password {email_password}.
POST /users/smtp/edit Replace an SMTP user's settings · Edit SMTP user details #
Ask an LLM
“How do I do a full update of an SMTP user's settings?”
“Can I change an SMTP user's password with a full edit?”
Tell an agent
Edit SMTP user {username} and set the password to {email_password}.
Fully update SMTP user {username} with description {description}.
PATCH /users/smtp/edit Partially update an SMTP user · Patch an SMTP user #
Ask an LLM
“Can I change only one field on an SMTP user and leave the rest alone?”
“What's the way to just switch off click tracking for one SMTP user?”
Tell an agent
Patch SMTP user {username}, setting only status to {status}.
Patch just the click tracking on SMTP user {username} to {click_tracking_enabled}.
POST /users/smtp/remove Delete an SMTP user · Remove an SMTP user #
Ask an LLM
“How do I delete SMTP credentials that are no longer used?”
“Can I remove an SMTP user from a subaccount?”
Tell an agent destructive · confirm first
Remove SMTP user {username}.
Delete SMTP user {username} from subaccount {subaccount_id}.
POST /users/smtp/view List SMTP users · View SMTP users #
Ask an LLM
“Which SMTP users exist on my account?”
“Can I look up the settings of one SMTP username?”
Tell an agent
List all SMTP users.
Show details for SMTP user {username}.

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/smtp2go/refs/heads/main/openapi/smtp2go-smtp-users-api-openapi.yml

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OpenAPI Specification

smtp2go-smtp-users-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: SMTP2GO SMTP USERS API
  version: 3.0.4
  description: The SMTP2GO v3 REST API for sending transactional email and SMS, managing sender domains and single sender emails, SMTP users, API keys, IP allow lists and IP auth, templates, webhooks, suppressions, subaccounts, dedicated IPs, email archive, activity search and delivery statistics. Every operation is a POST (with a PATCH variant on two paths) carrying a JSON body; authentication is an API key supplied in the X-Smtp2go-Api-Key header or as an api_key field in the request body.
  contact:
    name: SMTP2GO Support
    url: https://support.smtp2go.com/
  termsOfService: https://www.smtp2go.com/terms/
  x-harvest:
    source: https://developers.smtp2go.com/mcp
    method: MCP tools/call get-endpoint, one call per path+method, assembled verbatim
    harvested: '2026-08-13'
    server_info:
      name: SMTP2GO-API-Docs
      version: 3.0.4
    note: SMTP2GO does not publish a single fetchable OpenAPI URL; the ReadMe registry path answers 429 to non-browser clients. The provider's own remote MCP server returns the authoritative OpenAPI 3.1.0 fragment for each endpoint anonymously, and those 73 fragments are merged here without modification.
servers:
- url: https://api.smtp2go.com/v3
  description: Regionless
- url: https://us-api.smtp2go.com/v3
  description: US Region
- url: https://eu-api.smtp2go.com/v3
  description: EU Region
- url: https://au-api.smtp2go.com/v3
  description: AU Region
security:
- sec0: []
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/smtp2go/refs/heads/main/openapi/smtp2go-smtp-users-api-openapi.yml