Use Case

Event Streaming & Event-Driven Architecture

Publishing, routing, and reacting to event streams.

44 providers 131 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.

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

Providers

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

Exemplar 9 Complete, well-documented, and agent-ready
SalesforceSalesforce is a cloud-based customer relationship management (CRM) platform that provides a comprehensive s...4 published contracts90.4Salesforce Marketing CloudSalesforce Marketing Cloud Engagement is an enterprise digital marketing platform for customer journeys, em...1 published contract80.7ActiveCampaignActiveCampaign is a marketing automation and customer experience platform used by more than 180,000 busines...7 published contracts78.2KongKong is the AI Connectivity Company. Its platform spans Kong Gateway (the open-source API gateway built on ...2 published contracts73.2AWS LambdaAWS Lambda is a serverless, event-driven compute service that lets you run code for virtually any type of a...2 published contracts70.8ConvoyConvoy is an open-source, cloud-native webhooks gateway used to securely ingest, persist, debug, deliver, a...1 published contract68.5Microsoft Azure FunctionsAzure Functions is a serverless compute platform from Microsoft Azure enabling event-driven code execution ...1 published contract68.5Azure Service BusAzure Service Bus is a fully managed enterprise message broker with message queues and publish-subscribe to...1 published contract68.0Adobe Experience CloudAdobe Experience Cloud is an integrated suite of applications and services for digital marketing, analytics...5 published contracts67.2
Strong 10 Solid coverage with minor gaps
WebexCisco Webex is a comprehensive collaboration platform offering APIs for messaging, meetings, calling, devic...10 published contracts64.1Amazon MSKAmazon Managed Streaming for Apache Kafka (Amazon MSK) is a fully managed service that enables you to build...2 published contracts63.7SnapLogicSnapLogic provides an Agentic Integration and Applied AI Platform that securely connects applications, data...1 published contract63.3Oracle GoldenGateOracle GoldenGate enables real-time data integration and replication in heterogeneous IT environments. Thes...6 published contracts62.5Amazon Managed Service for Apache FlinkAmazon Managed Service for Apache Flink is the easiest way to transform and analyze streaming data in real ...1 published contract61.4Azure Container AppsAzure Container Apps is a serverless container service for running microservices and containerized applicat...1 published contract59.8HatchetHatchet is an open-source distributed task queue and workflow orchestration engine for background jobs, AI ...1 published contract57.9Amazon MemoryDBAmazon MemoryDB for Redis is a durable, in-memory database service that delivers ultra-fast performance. It...1 published contract56.7AWS Step FunctionsAWS Step Functions is a serverless orchestration service that lets you coordinate distributed applications ...10 published contracts56.7ChoreoWSO2 Choreo is an enterprise-grade Internal Developer Platform (IDP) and application orchestration platform...3 published contracts56.5
Developing 7 Usable, with meaningful gaps to close
BallerinaBallerina is an open-source programming language for the cloud, created and maintained by WSO2, whose type ...1 published contract51.2AklivityAklivity builds Zilla, a stateless, source-available multi-protocol gateway for event-driven applications a...4 APIs50.2Amazon MQAmazon MQ is a managed message broker service for Apache ActiveMQ and RabbitMQ that makes it easy to set up...2 published contracts48.8Apache KafkaApache Kafka is an open-source distributed event streaming platform used by thousands of companies for high...2 published contracts47.7ArgoArgo is a collection of open-source Kubernetes-native tools for workflows, events, CI/CD, and progressive d...3 published contracts46.3Google FormsThe Google Forms API is a RESTful interface that lets you create and modify Google Forms programmatically, ...3 APIs45.9Apache CouchDBApache CouchDB is an open-source distributed document-oriented NoSQL database governed by the Apache Softwa...9 APIs40.9
Thin 15 Limited public surface area
Apache NiFiApache NiFi is a dataflow management system designed to automate the flow of data between systems. It provi...1 published contract39.0Apache IgniteApache Ignite is a distributed database for mission-critical high-velocity applications requiring in-memory...1 published contract38.4BeeceptorBeeceptor is an API mocking, HTTP debugging, and proxy platform that lets developers create mock servers in...1 published contract36.2Apache ActiveMQApache ActiveMQ is an open-source, high-performance message broker written in Java, developed by the Apache...4 APIs35.4Conductor OSSConductor OSS is the Netflix-founded, Orkes-stewarded open source workflow and agentic AI orchestration pla...1 published contract32.7Apache FlumeApache Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and...1 published contract32.6Apache EventMeshApache EventMesh is a dynamic event-driven application runtime used to decouple the application and backend...1 published contract32.5Apache BookKeeperApache BookKeeper is a scalable, fault-tolerant, and low-latency storage service optimized for real-time wo...6 APIs32.0Apache RangerApache Ranger is a framework to enable, monitor, and manage comprehensive data security across the Hadoop p...1 published contract32.0AkkaAkka is a toolkit and runtime for building highly concurrent, distributed, and resilient message-driven app...1 published contract31.4Apache PulsarApache Pulsar is a cloud-native, distributed messaging and streaming platform that provides server-to-serve...1 published contract30.9Apache CamelApache Camel is an open-source integration framework developed by the Apache Software Foundation that imple...4 APIs30.8EventsEvent-driven APIs catalog. Documents the landscape of brokers, streaming platforms, schema registries, and ...18 APIs29.3Apache BeamApache Beam is a unified, open-source programming model developed by the Apache Software Foundation for def...2 APIs28.8Apache SamzaApache Samza is a distributed stream processing framework that provides a simple API for building stateful ...1 published contract27.2
Emerging 2 Early or largely undocumented
FortoForto is a digital freight forwarder and supply chain platform that combines technology with logistics expe...1 published contract19.4Apache AvroApache Avro is a data serialization system that provides rich data structures, a compact binary format, and...1 API16.8
Unrated 1 Not yet scored
AMQPAMQP (Advanced Message Queuing Protocol) is an open standard for message-oriented middleware governed by OA...1 API

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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