Messages API
nexmo · Company
The Messages API consolidates and normalises exchanges across all messaging channels. It allows you to use a single API to interact with our various channels such as SMS, MMS, WhatsApp, Viber and Facebook Messenger
Authentication
No authentication requiredFree to use with no key needed.
Sample Requests
POST
Send a message to the given channel.
Send a Message
https://api.apis.guru/v2/specs/nexmo.com/messages-olympus/1.4.0
Hover any highlighted part to learn what it does
curl -X POST "https://api.apis.guru/v2/specs/nexmo.com/messages-olympus/1.4.0/"
import requests
response = requests.post(
"https://api.apis.guru/v2/specs/nexmo.com/messages-olympus/1.4.0/",
)
print(response.json())const url = 'https://api.apis.guru/v2/specs/nexmo.com/messages-olympus/1.4.0/';
const response = await fetch(url, {
method: 'POST',
});
const data = await response.json();
console.log(data);package main
import (
"fmt"
"io"
"net/http"
)
func main() {
targetURL := "https://api.apis.guru/v2/specs/nexmo.com/messages-olympus/1.4.0/"
req, _ := http.NewRequest("POST", targetURL, nil)
client := &http.Client{}
resp, _ := client.Do(req)
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
fmt.Println(string(body))
}require "net/http"
require "json"
uri = URI("https://api.apis.guru/v2/specs/nexmo.com/messages-olympus/1.4.0/")
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"
req = Net::HTTP::Post.new(uri)
res = http.request(req)
puts JSON.parse(res.body)<?php
$url = "https://api.apis.guru/v2/specs/nexmo.com/messages-olympus/1.4.0/";
$opts = ["http" => [
"method" => "POST",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));Postman Setup Guide
- See official documentation for authentication and setup.
What can you build with Messages API?
Messages API is a Company API. Developers commonly use company APIs for:
- enriching CRM records with company firmographics
- building lead-generation and prospecting tools
- verifying business identity and registration details
- monitoring competitors and market intelligence
- powering B2B data enrichment pipelines
No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. Messages API is free to use, making it a low-risk choice to experiment with.
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