Novu
Novu is the open-source notification infrastructure for developers. A single REST API and workflow engine route a triggered event across in-app inbox, email, SMS, push, chat (Slack / Discord / MS Teams / WhatsApp) and custom channels — with subscriber preferences, topics, digest, snooze, and full workflow orchestration on top. Ships with the embeddable React Inbox component, the Novu Framework for code-first workflow authoring, language SDKs for nine ecosystems, a Postman collection, an MCP server, GitHub Action sync, the Maily block-based email editor, framework starters for Next.js / Remix / Nuxt / SvelteKit, and webhook bridges for Stripe / Clerk / Segment.
Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.
API Evangelist profiles Novu the way a machine reads it — 141 machine-readable artifacts across 19 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Novu scores 74.8/100 (exemplar), with a separate agent-readiness read of 54/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Novu
Each block below is one kind of artifact we hold for Novu. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 19
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Novu Inbox / In-App API
Client-side API and React Inbox component for rendering an embedded in-app notification center, marking notifications as read / archived / snoozed, and managing per-user notific...
Novu Framework (Code-First Workflows)
Code-first workflow framework that lets developers define notification workflows in TypeScript / JavaScript using `@novu/framework`, then sync them to Novu Cloud (or a self-host...
Novu MCP Server
Official Model Context Protocol server exposing the Novu REST API surface as MCP tools so AI agents (Claude Desktop, Cursor, agent frameworks) can trigger workflows, manage subs...
Novu Activity API
The Activity API from Novu — 1 operation(s) for activity.
Novu Channel Connections API
The Channel Connections API from Novu — 2 operation(s) for channel connections.
Novu Channel Endpoints API
The Channel Endpoints API from Novu — 2 operation(s) for channel endpoints.
Novu Contexts API
The Contexts API from Novu — 2 operation(s) for contexts.
Novu Domains API
Used to manage your inbound email domains.
Novu Environment Variables API
The Environment Variables API from Novu — 3 operation(s) for environment variables.
Novu Environments API
Environments allow you to manage different stages of your application development lifecycle. Each environment has its own set of API keys and configurations, enabling you to sep...
Novu Events API
Events represent a change in state of a subscriber. They are used to trigger workflows, and enable you to send notifications to subscribers based on their actions.
Novu Integrations API
With the help of the Integration Store, you can easily integrate your favorite delivery provider. During the runtime of the API, the Integrations Store is responsible for storin...
Novu Layouts API
Layouts are reusable wrappers for your email notifications.
Novu Messages API
A message in Novu represents a notification delivered to a recipient on a particular channel. Messages contain information about the request that triggered its delivery, a view ...
Novu Notifications API
The Notifications API from Novu — 2 operation(s) for notifications.
Novu Subscribers API
A subscriber in Novu represents someone who should receive a message. A subscriber's profile information contains important attributes about the subscriber that will be used in ...
Novu Topics API
Topics are a way to group subscribers together so that they can be notified of events at once. A topic is identified by a custom key. This can be helpful for things like sending...
Novu Translations API
Used to localize your notifications to different languages.
Novu Workflows API
All notifications are sent via a workflow. Each workflow acts as a container for the logic and blueprint that are associated with a type of notification in your system.
Scroll within the panel for all 19 ·
Postman Collections 1
A runnable collection turns the contract into something a developer can execute in seconds. We profile them because the fastest way to trust an API is to make a real call against it.
Ready-to-run Postman collections for exercising this provider's APIs.
Novu API
POSTMANOpen Collections 1
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Novu API
OPEN COLLECTIONArazzo Workflows 12
Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.
Multi-step API workflows described with the Arazzo specification.
Novu Bulk Onboard Subscribers and Broadcast an Announcement
Create many subscribers in one call, then broadcast a single announcement to all subscribers.
ARAZZONovu Create a Workflow and Trigger It
Define a new in-app notification workflow, then immediately trigger it to a subscriber.
ARAZZONovu Offboard a Subscriber
Confirm a subscriber, audit their topic subscriptions, then delete the subscriber and all associated data.
ARAZZONovu Onboard a Subscriber and Send Their First Notification
Create a subscriber, trigger a workflow to them, and read back the resulting event.
ARAZZONovu Provision a Delivery Integration and Make It Primary
Create a channel integration, promote it to primary for its channel, and confirm it is active.
ARAZZONovu Set Subscriber Preferences Then Notify
Confirm a subscriber exists, set their workflow channel preferences, then trigger a respectful notification.
ARAZZONovu Subscribe an Existing Subscriber to a Topic
Find a subscriber by search, subscribe them to a topic, and confirm the subscription.
ARAZZONovu Subscriber Inbox Triage
Confirm a subscriber, read their unread in-app inbox, then mark all notifications as read.
ARAZZONovu Topic Broadcast Campaign
Create a topic, subscribe an audience to it, and trigger a single notification to the whole topic.
ARAZZONovu Trigger a Notification and Verify Delivery
Trigger a workflow to a subscriber, then inspect the event and the per-channel messages it produced.
ARAZZONovu Trigger a Deferred Notification and Cancel It
Trigger a workflow with a caller-supplied transactionId, then cancel any pending delay or digest using that id.
ARAZZONovu Unsubscribe Subscribers From a Topic
Remove a set of subscribers from a topic, then list the remaining subscriptions to confirm.
ARAZZOScroll within the panel for all 12 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Novu Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Novu Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Novu Finops
FINOPSFeatures 12
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Multi-channel Workflow Orchestration
Author a single workflow tree that fans out across in-app, email, SMS, push, and chat with branching, delay, and digest steps.
Embedded React Inbox
Drop-in
Subscriber Identity
First-class Subscribers resource with credentials per channel, locale, timezone, preferences, and bulk import.
Topics for Fan-out
Named broadcast groups subscribed by users for one-call fan-out to thousands of subscribers.
Digest Engine
Aggregate high-frequency triggers into a single delivery using configurable digest windows and back-off keys.
Code-First Framework
Define workflows in TypeScript using @novu/framework and sync to Novu Cloud via novu-sync or a GitHub Action.
Block-Based Email Editor
WYSIWYG block-based editor (open-sourced as Maily.to) powered by React Email under the hood.
Tenant / Context Objects
Reusable tenant and organization context objects referenced by trigger payloads for multi-tenant routing.
Idempotency + RateLimit Headers
IETF-style RateLimit-* headers on every response, Idempotency-Key on every mutating request.
MCP Server
Official Model Context Protocol server exposing the Novu REST API to AI agents.
Self-Hosting
Apache-/MIT-licensed monorepo with Docker Compose and community Kubernetes manifests for fully self-hosted deployments.
9 Language SDKs
TypeScript, Python, Go, PHP, C#, Java, Elixir, Kotlin, Ruby, Rust, .NET clients.
Scroll within the panel for all 12 ·
Event Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Novu Notification Center WebSocket API
Real-time WebSocket interface used by the Novu Notification Center / Inbox (the `
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Novu Context
JSON-LDSpectral Rules 3
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
JSON Schema 20
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
BulkSubscriberCreateDto
JSON SCHEMABulkTriggerEventDto
JSON SCHEMACreateEnvironmentRequestDto
JSON SCHEMACreateIntegrationRequestDto
JSON SCHEMACreateSubscriberRequestDto
JSON SCHEMACreateWorkflowDto
JSON SCHEMAEnvironmentResponseDto
JSON SCHEMAErrorDto
JSON SCHEMAIntegrationResponseDto
JSON SCHEMALayoutResponseDto
JSON SCHEMAMessageResponseDto
JSON SCHEMASubscriberPayloadDto
JSON SCHEMASubscriberResponseDto
JSON SCHEMATopicResponseDto
JSON SCHEMATriggerEventRequestDto
JSON SCHEMATriggerEventResponseDto
JSON SCHEMAUpdateEnvironmentRequestDto
JSON SCHEMAUpdateIntegrationRequestDto
JSON SCHEMAUpdateWorkflowDto
JSON SCHEMAWorkflowResponseDto
JSON SCHEMAScroll within the panel for all 20 ·
JSON Structure 20
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Novu Bulk Subscriber Create Dto Structure
JSON STRUCTURENovu Bulk Trigger Event Dto Structure
JSON STRUCTURENovu Create Environment Request Dto Structure
JSON STRUCTURENovu Create Integration Request Dto Structure
JSON STRUCTURENovu Create Subscriber Request Dto Structure
JSON STRUCTURENovu Create Workflow Dto Structure
JSON STRUCTURENovu Environment Response Dto Structure
JSON STRUCTURENovu Error Dto Structure
JSON STRUCTURENovu Integration Response Dto Structure
JSON STRUCTURENovu Layout Response Dto Structure
JSON STRUCTURENovu Message Response Dto Structure
JSON STRUCTURENovu Subscriber Payload Dto Structure
JSON STRUCTURENovu Subscriber Response Dto Structure
JSON STRUCTURENovu Topic Response Dto Structure
JSON STRUCTURENovu Trigger Event Request Dto Structure
JSON STRUCTURENovu Trigger Event Response Dto Structure
JSON STRUCTURENovu Update Environment Request Dto Structure
JSON STRUCTURENovu Update Integration Request Dto Structure
JSON STRUCTURENovu Update Workflow Dto Structure
JSON STRUCTURENovu Workflow Response Dto Structure
JSON STRUCTUREScroll within the panel for all 20 ·
Examples 12
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Novu Broadcast Event Example
EXAMPLENovu Create Topic Example
EXAMPLENovu Error Response Example
EXAMPLENovu List Messages Example
EXAMPLENovu Trigger Event Example
EXAMPLEScroll within the panel for all 12 ·
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 9
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Product Onboarding
Welcome sequences combining transactional email, in-app inbox messages, and reminders.
Transactional Notifications
Order confirmations, password resets, magic links, payment receipts, and shipping updates.
Real-Time Collaboration Alerts
Comment mentions, document shares, and review requests delivered to the in-app inbox and email.
Subscription Lifecycle
Trial reminders, renewal warnings, dunning, and cancellation flows driven by billing events.
Authentication Events
Sign-up confirmations, MFA prompts, suspicious-login alerts, and OTP codes.
Marketing Broadcasts
Product announcements and weekly digests fanned out via topics.
Operational Alerts
On-call paging, deploy notifications, and incident updates routed through Slack / MS Teams.
Multi-Tenant SaaS
Per-customer routing using tenant context and subscriber data inheritance.
AI Agent Notifications
Agent workflows triggering Novu via the MCP server to keep humans in the loop.
Scroll within the panel for all 9 ·
Integrations 20
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
SendGrid
Outbound email integration via SendGrid credentials.
Mailgun
Outbound email integration via Mailgun.
Resend
Outbound email integration via Resend.
Postmark
Outbound transactional email via Postmark.
AWS SES
Outbound email via Amazon Simple Email Service.
Twilio
SMS delivery via Twilio.
MessageBird
SMS delivery via MessageBird.
Plivo
SMS delivery via Plivo.
Firebase Cloud Messaging
Mobile push delivery via FCM.
Apple Push Notification Service
iOS push delivery via APNs.
OneSignal
Push delivery via OneSignal.
Slack
Chat notifications to Slack channels and users.
Microsoft Teams
Chat notifications to MS Teams channels.
Discord
Chat notifications to Discord channels.
Conversational notifications via WhatsApp.
Stripe
Billing-event-to-notification bridge via stripe-to-novu-webhooks.
Clerk
Authentication-event-to-notification bridge via clerk-to-novu-webhooks.
Segment
CDP-event-to-notification bridge via segment-to-novu-webhooks.
React
First-class React Inbox component and Next.js helpers.
GitHub Actions
actions-novu-sync syncs framework workflows to Novu Cloud on every push.
Scroll within the panel for all 20 ·
Solutions 4
Packaged solutions the provider offers on top of the raw API surface.
Packaged solutions this provider offers.
Novu Cloud
Managed Novu hosted by the Novu team. Free / Pro / Team / Enterprise plans.
Self-Hosted Open Source
Run the full Novu monorepo on your own infrastructure under MIT license. Docker Compose for development, community Kubernetes manifests for production.
Novu EU Cloud
EU-resident Novu Cloud deployment at eu.api.novu.co.
Enterprise (HIPAA, SSO, SCIM)
HIPAA BAA, custom SSO, SCIM directory sync, and custom data-residency regions (US, EU, UK, Singapore, Australia, Japan, South Korea).
Resources
Every other property we hold for Novu — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 15
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 15 ·
Build 14
SDKs, sample code, and the tooling you integrate with
Scroll within the panel for all 14 ·
Access & Security 2
Authentication, authorization, and security posture
Learn 5
Tutorials, courses, talks, and written guidance
Operate 6
Status, limits, changes, and where to get help
Commercial 6
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/novu · machine-readable index on apis.io