Feature
API Discovery & Catalog
A machine-readable index of available APIs.
35 providers
138 APIs
20 declared variants
APIs are indexed in a catalog, registry, or APIs.json-style manifest that humans and agents can search. Prevents the same capability from being rebuilt three times in one organization.
35 API providers on the APIs.io network offer api discovery & catalog. The highest-rated are Postman, WSO2, APILayer, Adobe Experience Cloud, ServiceNow.
Providers
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 3 Complete, well-documented, and agent-ready
PostmanPostman is the world's leading API platform, used by 35+ million developers to design, build, test, documen...WSO2WSO2 API Manager is an open-source API management platform supporting REST, SOAP, and GraphQL with flexible...APILayerAPILayer is an API marketplace and hub, an Idera, Inc. brand headquartered in Vienna, Austria, that publish...
Strong 6 Solid coverage with minor gaps
Adobe Experience CloudAdobe Experience Cloud is an integrated suite of applications and services for digital marketing, analytics...ServiceNowServiceNow provides cloud-based platform services that automate enterprise IT operations.Amazon GlueAmazon Glue is a serverless data integration service that makes it simple to discover, prepare, move, and i...Amazon EventBridgeAmazon EventBridge is a serverless event bus service that makes it easy to connect your applications with d...Amazon MSKAmazon Managed Streaming for Apache Kafka (Amazon MSK) is a fully managed service that enables you to build...Adobe CaptivateAdobe Captivate is an eLearning authoring tool used to create responsive eLearning content, software demons...
Developing 12 Usable, with meaningful gaps to close
EncoreEncore is a backend application framework and developer cloud that lets engineering teams build type-safe d...Veritas NetBackupEnterprise-grade data protection and backup solution with comprehensive REST APIs for backup, recovery, and...WunderGraphFull Lifecycle API Management for (Federated) GraphQL. Schema Registry, composition checks, analytics, metr...Apollo GraphQLApollo Graph, Inc. — trading publicly as Apollo and Apollo GraphQL — is the San Francisco company behind th...AxwayAxway provides API management, integration, and security solutions enabling organizations to connect, secur...Apache APISIXApache APISIX is a dynamic, real-time, high-performance cloud-native API gateway built on NGINX and etcd, d...ChoreoWSO2 Choreo is an enterprise-grade Internal Developer Platform (IDP) and application orchestration platform...APIToolkit (Monoscope)APIToolkit (now Monoscope) is an open-source-friendly API observability and monitoring platform that helps ...BlockBlock, Inc. is a global technology company building economic empowerment tools through a family of products...Apache DubboApache Dubbo is a high-performance, Java-based open-source RPC framework that provides service discovery, t...Apache KnoxApache Knox is a REST API and application gateway for the Apache Hadoop ecosystem. It provides a single acc...WayfairWayfair Inc. is one of the world's largest online destinations for home goods and furniture, serving over 2...
Thin 9 Limited public surface area
Akamai API SecurityAkamai API Security (formerly Noname Security) provides comprehensive API discovery, posture management, an...Application ResearchApplication Research is a topic collection focused on specifications for declaring application service inte...TrinoTrino is an open-source, distributed SQL query engine built for lightning-fast analytics over large, hetero...APIClarityAPIClarity is an open source (Apache-2.0) API security and observability tool that captures API traffic in ...Apache CuratorApache Curator is a Java/JVM client library for Apache ZooKeeper, governed by the Apache Software Foundatio...Apache PulsarApache Pulsar is a cloud-native, distributed messaging and streaming platform that provides server-to-serve...ApiShareApiShare is an API governance platform that provides a unified operational model for API lifecycle manageme...42Crunch42Crunch is a leading API security company that specializes in protecting and securing APIs. They provide i...Apinity.ioApinity empowers organisations to run their compliant API marketplace that simplifies integration, drives a...
Emerging 3 Early or largely undocumented
API PulseAPI Pulse is a comprehensive survey and benchmarking platform created by API Evangelist that helps organiza...APIwizAPIwiz is a federated API management platform that streamlines the complete API lifecycle from design throu...API DynamicsAPIDynamics is an AI-driven API security and observability platform that empowers enterprises to gain real-...
What Providers Actually Declared
This feature is a canonical term. These are the free-text strings
providers wrote in their own apis.yml that map onto it.
API CatalogAPI Catalog and DocsAPI DiscoveryAPI InventoryAPI Inventory AssessmentAPI MarketplaceAutomatic API DiscoveryBuilt-in API MarketplaceCatalog ManagementCatalog managementCompliant API MarketplaceData Ingestion and Schema RegistryProduct Catalog ManagementSchema RegistryService CatalogService Catalog And Self-ServiceService DiscoveryType-safe service-to-service calls with automatic service discovery and network plumbingUnified API CatalogZurich Exchange API Marketplace
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Work with this as data
Every feature here is available over the APIs.io API and to AI agents over MCP. Features is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.