Nextiva
Nextiva is a Scottsdale, Arizona based cloud communications and customer experience company whose NextOS / NEXT platform combines UCaaS business phone service, contact center (NCX), SMS and team messaging, voice AI agents, and conversation analytics for small business through enterprise. Its developer surface is the Nextiva Contact Center platform: a ReadMe-hosted developer portal at developer.nextiva.com publishing five REST OpenAPI 3.0 contracts (Provider Authentication, Provider Token Service, Workitem Service, Conversation, SMS Messaging) served from api.nextiva.com, alongside four frontend SDKs (Core, Web, React, React Native) that wrap the same backend over HTTP plus two WebSocket channels — an events socket for real-time workitem, offer, phone-state and live-transcription notifications, and an analytics socket for supervisory data.
Nextiva publishes 5 APIs on the APIs.io network, including Provider Authentication API, Provider Token Service API, Workitem Service API, and 2 more. Tagged areas include Company, Communications, Voice, Contact Center, and Customer Experience.
The Nextiva catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Nextiva’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, authentication, and 22 more developer resources.
Kin Score
APIs 5
Individual APIs this provider publishes, each with its own machine-readable definition.
Nextiva Provider Authentication API
Login and token refresh for the Nextiva Contact Center platform. Basic authentication generates a JWT bearer token carrying the user's authorities; the token-refresh operation e...
Nextiva Provider Token Service API
Spring-secured provider token endpoints that mint JWTs with user authorities, authenticate a user and redirect with a secure token, and generate time-limited multi-tenant portal...
Nextiva Workitem Service API
Retrieve and control workitems — the unit of work in the Nextiva Contact Center — and the calls attached to them. Fetch workitems and workitem detail, bridge, hold, hang up, mut...
Nextiva Conversation API
Read the conversation graph across the contact center — conversations and their workitems, conversation history by participant, campaign and ticket scoped conversations, unread ...
Nextiva SMS Messaging API
Send outbound SMS messages from a Nextiva user. Inbound SMS arrives as a workitem on the SDK event stream rather than as a customer-configured webhook.
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
nextiva-mcp.yml
MCP SERVEREvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Nextiva Events
ASYNCAPISecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API