Use Case

Event Streaming & Event-Driven Architecture

Publishing, routing, and reacting to event streams.

45 providers 146 APIs 27 declared variants

Event backbones and message brokers that carry events between producers and consumers, and the decoupled, asynchronous architectures — webhooks, choreography, event sourcing — built on top of them.

45 API providers on the APIs.io network offer event streaming & event-driven architecture. The highest-rated are Salesforce, ActiveCampaign, Salesforce Marketing Cloud, Kong, AWS Lambda.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 10 Complete, well-documented, and agent-ready
SalesforceSalesforce is a cloud-based customer relationship management (CRM) platform that provides a comprehensive s...4 published contracts91.0ActiveCampaignActiveCampaign is a marketing automation and customer experience platform used by more than 180,000 busines...11 published contracts78.1Salesforce Marketing CloudSalesforce Marketing Cloud Engagement is an enterprise digital marketing platform for customer journeys, em...1 published contract77.3KongKong is the AI Connectivity Company. Its platform spans Kong Gateway (the open-source API gateway built on ...2 published contracts73.8AWS LambdaAWS Lambda is a serverless, event-driven compute service that lets you run code for virtually any type of a...2 published contracts69.8Microsoft Azure FunctionsAzure Functions is a serverless compute platform from Microsoft Azure enabling event-driven code execution ...1 published contract69.4Adobe Experience CloudAdobe Experience Cloud is an integrated suite of applications and services for digital marketing, analytics...5 published contracts68.7WebexCisco Webex is a comprehensive collaboration platform offering APIs for messaging, meetings, calling, devic...20 published contracts68.6ConvoyConvoy is an open-source, cloud-native webhooks gateway used to securely ingest, persist, debug, deliver, a...1 published contract68.4Azure Service BusAzure Service Bus is a fully managed enterprise message broker with message queues and publish-subscribe to...1 published contract68.0
Strong 5 Solid coverage with minor gaps
Azure Container AppsAzure Container Apps is a serverless container service for running microservices and containerized applicat...1 published contract62.6Oracle GoldenGateOracle GoldenGate enables real-time data integration and replication in heterogeneous IT environments. Thes...6 published contracts62.4SnapLogicSnapLogic provides an Agentic Integration and Applied AI Platform that securely connects applications, data...1 published contract60.8Amazon MSKAmazon Managed Streaming for Apache Kafka (Amazon MSK) is a fully managed service that enables you to build...2 published contracts58.5HatchetHatchet is an open-source distributed task queue and workflow orchestration engine for background jobs, AI ...1 published contract55.4
Developing 12 Usable, with meaningful gaps to close
Amazon Managed Service for Apache FlinkAmazon Managed Service for Apache Flink is the easiest way to transform and analyze streaming data in real ...1 published contract54.0BallerinaBallerina is an open-source programming language for the cloud, created and maintained by WSO2, whose type ...1 published contract53.9AklivityAklivity builds Zilla, a stateless, source-available multi-protocol gateway for event-driven applications a...4 APIs53.2AWS Step FunctionsAWS Step Functions is a serverless orchestration service that lets you coordinate distributed applications ...10 published contracts51.3ChoreoWSO2 Choreo is an enterprise-grade Internal Developer Platform (IDP) and application orchestration platform...3 published contracts50.3Amazon MQAmazon MQ is a managed message broker service for Apache ActiveMQ and RabbitMQ that makes it easy to set up...2 published contracts48.5ArgoArgo is a collection of open-source Kubernetes-native tools for workflows, events, CI/CD, and progressive d...3 published contracts47.6Amazon MemoryDBAmazon MemoryDB for Redis is a durable, in-memory database service that delivers ultra-fast performance. It...1 published contract46.2Google FormsThe Google Forms API is a RESTful interface that lets you create and modify Google Forms programmatically, ...3 APIs46.0Apache KafkaApache Kafka is an open-source distributed event streaming platform used by thousands of companies for high...2 published contracts45.4Apache CouchDBApache CouchDB is an open-source distributed document-oriented NoSQL database governed by the Apache Softwa...9 APIs41.0Apache NiFiApache NiFi is a dataflow management system designed to automate the flow of data between systems. It provi...1 published contract39.9
Thin 15 Limited public surface area
Apache IgniteApache Ignite is a distributed database for mission-critical high-velocity applications requiring in-memory...2 published contracts38.4BeeceptorBeeceptor is an API mocking, HTTP debugging, and proxy platform that lets developers create mock servers in...1 published contract37.4Apache ActiveMQApache ActiveMQ is an open-source, high-performance message broker written in Java, developed by the Apache...4 APIs36.7AkkaAkka is a toolkit and runtime for building highly concurrent, distributed, and resilient message-driven app...1 published contract32.9Apache EventMeshApache EventMesh is a dynamic event-driven application runtime used to decouple the application and backend...1 published contract32.6Conductor OSSConductor OSS is the Netflix-founded, Orkes-stewarded open source workflow and agentic AI orchestration pla...1 published contract32.6Apache BookKeeperApache BookKeeper is a scalable, fault-tolerant, and low-latency storage service optimized for real-time wo...6 APIs32.1Apache CamelApache Camel is an open-source integration framework developed by the Apache Software Foundation that imple...4 APIs32.1Apache RangerApache Ranger is a framework to enable, monitor, and manage comprehensive data security across the Hadoop p...1 published contract32.1Apache PulsarApache Pulsar is a cloud-native, distributed messaging and streaming platform that provides server-to-serve...1 published contract31.0Apache FlumeApache Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and...1 published contract29.9EventsEvent-driven APIs catalog. Documents the landscape of brokers, streaming platforms, schema registries, and ...18 APIs29.2Apache BeamApache Beam is a unified, open-source programming model developed by the Apache Software Foundation for def...2 APIs28.9AMQPAMQP (Advanced Message Queuing Protocol) is an open standard for message-oriented middleware governed by OA...1 API27.4Apache SamzaApache Samza is a distributed stream processing framework that provides a simple API for building stateful ...1 published contract27.3
Emerging 2 Early or largely undocumented
FortoForto is a digital freight forwarder and supply chain platform that combines technology with logistics expe...1 published contract24.0Apache AvroApache Avro is a data serialization system that provides rich data structures, a compact binary format, and...1 API16.9
Minimal 1 Almost no public developer surface
Binary FormatBinary format refers to data encoding and serialization methods that use binary rather than text representa...6.3

What Providers Actually Declared

This use case is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

Apache KafkaEvent SourcingEvent Stream ProcessingEvent StreamingEvent Streaming PipelinesEvent-Driven ArchitectureEvent-Driven Architecture (EDA)Event-Driven ArchitecturesEvent-Driven AutomationEvent-Driven GraphQL BackendsEvent-Driven IntegrationEvent-Driven ProcessingEvent-Driven WorkflowsHTTP to Kafka REST APIKafka Event IngestionKafka Governance at ScaleKafka Topic AuthorizationPub/Sub MessagingReal-Time Event StreamingReal-Time Event-Driven MarketingReal-Time Stream ProcessingReceiving webhooks from third-party providers and routing to internal servicesStream Processing StorageStreaming data to big data platforms (Kafka, Hadoop, Elasticsearch)Webhook HandlingWebhook TestingWebhook-Driven Integrations

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  • find_cohortsEvery scored population of providers in the catalog.
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