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Vonage SMS API (via KPN)

Vonage's SMS API allows you to send and receive text messages to users around the globe through simple RESTful APIs. * Programmatically send and receive high volume of SMS anywhere in the world. * Build apps that scale with the web technologies that you are already using. * Send SMS with low latency and high delivery rates. * Receive SMS for free using SMS-enabled local numbers in countries around the world. * Only pay for what you use, nothing more.

Vonage SMS API (via KPN) is one of 38 APIs that KPN publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Messaging, SMS, CPaaS, and Resold API. The published artifact set on APIs.io includes an API reference and an OpenAPI specification.

This API exposes 4 operations across 4 paths, organized into 4 resource areas, and defines 7 schemas. It is described by OpenAPI 2.0, at version v1.1.1.

Requests are made against the base URL https://api-prd.kpn.com/communication/nexmo/sms.

4 operations 4 paths 7 schemas 4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 2.0
API Version
v1.1.1
Base URL
https://api-prd.kpn.com/communication/nexmo/sms
Authentication
OAuth 2.0
Terms of Service
Resource Areas
4

Authentication & Security 1

Vonage SMS API (via KPN) declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (OAuth2) using the application flow.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 POST. They span 4 resource areas: Send SMS, Register webhook - Demo testing ONLY, Callback, Webhook. Each is listed below with its method, path, parameters, and response codes.

Send SMS 1
POST
/send
Send SMS
17 params → 200400401403404429500503
Register webhook - Demo testing ONLY 1
POST
/register
Register callback URL to webhook for incoming messages
2 params → 200400401403404429500503
Callback 1
POST
/https://example.com:webhooks/delivery-receipt
Delivery Receipt
1 param → 200
Webhook 1
POST
/https://example.com:webhooks/inbound-sms
Inbound SMS
1 param → 200

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are InboundMessage (15 properties), DeliveryReceipt (9 properties), ErrorResponse (5 properties), SendSMSResponseMessage (4 properties). Each schema is shown below with its type and property counts.

RegisterWebhookRequest
object
2 properties
RegisterWebhookResponse
object
1 property
SendSMSResponse
object
2 properties
SendSMSResponseMessage
object
4 properties
DeliveryReceipt
object
9 properties
InboundMessage
object
15 properties
ErrorResponse
object
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

vonage-sms-openapi.yml Raw ↑

Other APIs KPN publishes across the network.

KPN Number Verify API
KPN SIM Swap API (Account Takeover Protection)
KPN Match API
KPN SMS API
KPN SMS Inbound API
KPN Mobile Services Management API
KPN FIAM API
KPN FIAM Eneco Data Products API
KPN Disturbance Check API
KPN Internet Speed Check API
KPN High Level Design FttX API
KPN LoRa Device Management API
Where this information came from

This is an independent, third-party profile of Vonage SMS API (via KPN), published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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