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.

55.8/100 developing ▬ flat Agent 45/100 agent ready Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
5 APIs 1 MCP Servers
CompanyCommunicationsVoiceContact CenterCustomer ExperienceSMSMessagingUnified CommunicationsVoIPTelephonyConversational AICall Center

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 55.8/100 · developing
Contract Quality 16.9 / 25
Developer Ergonomics 12.5 / 20
Commercial Clarity 10.5 / 20
Operational Transparency 5.1 / 13
Governance 1.4 / 12
Discoverability 9.3 / 10
Agent readiness — 45/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/nextiva: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

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 SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Nextiva Events

ASYNCAPI

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Nextiva Authentication

http · 3 schemes

SECURITY

Nextiva Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Nextiva Vulnerability Disclosure

Hackerone · contact published

SECURITY

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

Source (apis.yml)

apis.yml Raw ↑
aid: nextiva
name: Nextiva
description: '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.'
image: https://files.readme.io/c57cfd17e3ed303431732141b3a42eaff618f7682e4cd2c42e12470ba7ce8878-nextiva_logo_rgb_dark.svg
url: https://raw.githubusercontent.com/api-evangelist/nextiva/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-pipeline
specificationVersion: '0.20'
created: '2026-07-31'
modified: '2026-07-31'
tags:
- Company
- Communications
- Voice
- Contact Center
- Customer Experience
- SMS
- Messaging
- Unified Communications
- VoIP
- Telephony
- Conversational AI
- Call Center
apis:
- aid: nextiva:provider-authentication
  name: Nextiva Provider Authentication API
  description: 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 exchanges an existing bearer token for a new one. Every
    other Nextiva API requires the token this API issues.
  humanURL: https://developer.nextiva.com/nextiva/reference/generatetokenwithauthorities
  baseURL: https://api.nextiva.com
  tags:
  - Authentication
  - Tokens
  - Security
  properties:
  - type: OpenAPI
    url: openapi/nextiva-authentication-openapi.yml
  - type: Overlay
    url: overlays/nextiva-authentication-overlay.yaml
  - type: Documentation
    url: https://developer.nextiva.com/nextiva/docs/authentication
- aid: nextiva:provider-token-service
  name: Nextiva Provider Token Service API
  description: 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 access tokens.
  humanURL: https://developer.nextiva.com/nextiva/reference/generatetokenwithauthorities
  baseURL: https://api.nextiva.com/provider
  tags:
  - Authentication
  - Tokens
  - Multi-Tenant
  properties:
  - type: OpenAPI
    url: openapi/nextiva-provider-authentication-openapi.yml
  - type: Overlay
    url: overlays/nextiva-provider-authentication-overlay.yaml
- aid: nextiva:workitem-service
  name: Nextiva Workitem Service API
  description: 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, mute and unmute a call, send DTMF digits, change ACD
    priority, send an email response, and transfer a call to another agent or to an inbox queue.
  humanURL: https://developer.nextiva.com/nextiva/reference/fetchworkitems
  baseURL: https://api.nextiva.com
  tags:
  - Workitems
  - Call Control
  - Contact Center
  - Transfers
  - DTMF
  - Email
  properties:
  - type: OpenAPI
    url: openapi/nextiva-workitem-service-openapi.yml
  - type: Overlay
    url: overlays/nextiva-workitem-service-overlay.yaml
  - type: Documentation
    url: https://developer.nextiva.com/nextiva/docs/workitem-service
- aid: nextiva:conversation
  name: Nextiva Conversation API
  description: Read the conversation graph across the contact center — conversations and their workitems, conversation history
    by participant, campaign and ticket scoped conversations, unread counts, conversation activity summaries, and the transcriptions
    and call recordings attached to a workitem.
  humanURL: https://developer.nextiva.com/nextiva/reference/fetchconversations
  baseURL: https://api.nextiva.com
  tags:
  - Conversations
  - Analytics
  - Transcription
  - Recordings
  - Campaigns
  - Tickets
  properties:
  - type: OpenAPI
    url: openapi/nextiva-conversation-openapi.yml
  - type: Overlay
    url: overlays/nextiva-conversation-overlay.yaml
  - type: Documentation
    url: https://developer.nextiva.com/nextiva/docs/conversation-service
- aid: nextiva:sms-messaging
  name: Nextiva SMS Messaging API
  description: 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.
  humanURL: https://developer.nextiva.com/nextiva/reference/sendsmsmessage
  baseURL: https://api.nextiva.com
  tags:
  - SMS
  - Messaging
  - Text
  properties:
  - type: OpenAPI
    url: openapi/nextiva-sms-messaging-openapi.yml
  - type: Overlay
    url: overlays/nextiva-sms-messaging-overlay.yaml
  - type: Documentation
    url: https://developer.nextiva.com/nextiva/reference/inbound-and-outbound-sms
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.nextiva.com/
- type: DeveloperPortal
  url: https://developer.nextiva.com/nextiva/
- type: Documentation
  url: https://developer.nextiva.com/nextiva/docs/overview-of-sdks
- type: APIReference
  url: https://developer.nextiva.com/nextiva/reference/generatetokenwithauthorities
- type: GettingStarted
  url: https://developer.nextiva.com/nextiva/docs/sdk-installation
- type: Support
  url: https://help.nextiva.com/
- type: Blog
  url: https://www.nextiva.com/blog/
- type: GitHubOrganization
  url: https://github.com/nextiva
- type: Pricing
  url: https://www.nextiva.com/nextivapricing
- type: Login
  url: https://login.nextiva.com/
- type: TermsOfService
  url: https://www.nextiva.com/legal.html
- type: PrivacyPolicy
  url: https://www.nextiva.com/privacy-policy.html
- type: StatusPage
  url: https://status.nextiva.com/
- type: Security
  url: https://www.nextiva.com/security-policy.html
- type: Compliance
  url: https://www.nextiva.com/resources/learn/security-certification-overview
- type: Integrations
  url: https://www.nextiva.com/integrations
- type: Packages
  url: packages/nextiva-packages.yml
- type: SDKs
  url: packages/nextiva-packages.yml
- type: Authentication
  url: authentication/nextiva-authentication.yml
- type: Conventions
  url: conventions/nextiva-conventions.yml
- type: ErrorCatalog
  url: errors/nextiva-problem-types.yml
- type: Conformance
  url: conformance/nextiva-conformance.yml
- type: Lifecycle
  url: lifecycle/nextiva-lifecycle.yml
- type: DomainSecurity
  url: security/nextiva-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/nextiva-vulnerability-disclosure.yml
- type: Webhooks
  url: asyncapi/nextiva-events.yml
- type: DataModel
  url: data-model/nextiva-data-model.yml
- type: MCPServer
  url: mcp/nextiva-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/nextiva-llms.txt
x-enrichment:
  date: '2026-07-31'
  status: enriched
  artifacts_added: 28
  pass: local-v1