WSO2 API Manager - 100% Open Source API Management Platform

WSO2 API Manager is a complete enterprise-class API management solution that combines easy, managed API access with full API governance and analysis. The traffic manager featuring a dynamic throttling engine easily manages and scales API traffic while its enhanced analytics provides greater insight into API usage, performance and anomalies. It leverages proven components from the WSO2 platform to secure APIs and provides stronger governance across APIs, services and applications with full API lifecycle visualization.

As with all WSO2 products, WSO2 API Manager is 100% open source. Designed for easy customization, it is extensively pluggable to integrate with existing infrastructure in your enterprise.


WSO2 API Manager supports API design and publishing as well as API lifecycle management, includes a developer portal, provides APIs access control, and offers a comprehensive set of analytics for IT operations and API product managers.

Enables API discovery by providing a store experience, similar to mobile applications public stores. APIs can be documented, tagged, categorized, and tested right from the store itself
Defines a role-based access to API publication, by clearly separating API developers (creators) from API publishers (who hold the responsibility to make an API publicly available)
Provides self-service API access, while retaining control by associating approval workflows to critical actions such as subscriptions, application creation, or user self-sign-up
Secures APIs leveraging OAuth standard and supports common OAuth grant profiles such as SAML, IWA, Password, or Implicit, allowing APIs to be invoked in the context of web applications or mobile applications
Monitors API behavior, at operation and business levels, and supports Google Analytics as well as the WSO2 analytics platform

WSO2 API Manager is part of a comprehensive, composite platform that can enable you to provide more functionality to your customers. You can adopt the rest of the platform at your pace, as your API management deployment matures and grows. Potential scenarios include:

  • Federated identity based on SAML or OpenID Connect
  • Policy-based authorization with XACML
  • Integrated service and API governance
  • Advanced data and protocol transformation


Design and Prototype APIs

  • Design APIs, gather developers' feedback before implementing (API First Design). Design can be done from the publishing interface or via importing an existing Swagger 2.0 definition
  • Deploy a prototyped API, provide early access to APIs, and get early feedback
  • Mock API implementation using JavaScript
  • Supports publishing SOAP, REST, JSON, and XML style services as APIs
  • Pre-loaded sample APIs for a hassle-free first experience

Publish APIs and Govern API Use

  • Publish APIs to external consumers and partners, as well as to internal users
  • Ability to publish APIs to a selected set of gateways in a multi-gateway environment
  • Support enforcement of corporate policies for actions like API subscriptions, application creation, etc. via customizable workflows
  • Manage API visibility and restrict access to specific partners or customers
  • Manage API lifecycle from cradle to grave: create, publish, block, deprecate, and retire
  • Publish both production and sandbox keys for APIs to enable easy developer testing
  • Manage API versions and deployment status by version
  • One-click deployment to API gateway for immediate publishing
  • Customize the API lifecycle, including executing custom behavior on lifecycle transitions

Control Access and Enforce Security

  • Restrict API access tokens to domains/IPs
  • Validate APIs payload contents against a schema
  • Apply security policies to APIs (authentication, authorization)
  • Rely on OAuth2 standard for API access (implicit, authorization code, client, SAML, IWA Grant Type)
  • Plug third-party key servers in lieu of the default one, for application registration, Oauth2 token generation & validation
  • Block a subscription and restrict a complete application
  • Associate API to system-defined service tiers
  • Generate JSON web tokens for consumption by back-end servers
  • Leverage XACML for entitlements management and fine-grain authorization
  • Configure Single Sign-On (SSO) using SAML 2.0 for easy integration with existing web apps
  • Threat protection, bot detection and token-fraud detection

Developer Portal

  • Graphical experience similar to popular applications stores
  • Browse and search APIs by provider, tags, or name
  • Provision API keys
  • Subscribe to APIs and manage subscriptions on per-application basis
  • Subscriptions can be at different service tiers based on expected usage levels
  • Interactive API Test console
  • Internationalization support
  • Notifications enabled for new versions of subscribed APIs
  • Common view of the store for users registered under same organization

Manage Developer Community

  • Self-registration for developer community to subscribe to APIs
  • Developer interaction with APIs via forums, comments, and ratings
  • View API consumer analytics
  • Tools for API product managers to proactively manage API subscriptions
  • Tooling to develop services, features and artifacts and manage their links and dependencies through a simplified graphical editor

Manage and Scale API Traffic

  • API gateway can act as SSL termination point
  • Separate production and sandbox traffic on different API gateways
  • Supports protocol transformation, data transformation, and API composition
  • Maps between HTTP(s) and other protocols, such as JMS or writing to file systems
  • Traffic Manager enforces rate limiting and throttling dynamically based on usage quotas and bandwidth quotas
  • Protect API backends with a throttling hard limit
  • Horizontally scalable with easy deployment into cluster using proven routing infrastructure
  • Extremely high performance pass-through message routing with minimal latency
  • Supports up to 1300 TPS on a single node

Monitor and Monetize

  • API usage published to pluggable analytics framework (requests, responses, faults, throttling, subscriptions, self-sign ups to name a few)
  • Out-of-the-box support for WSO2 Data Analytics Server and Google Analytics.
  • Provides statistical graphs such as API latency and API usage comparison that help monitor API and application performance
  • Ability to analyze logs pertaining to application errors, API deployment stats, login errors, no of API failures, access token errors
  • Live log viewer
  • Track consumer analytics per API, per API version, per tiers, and per consumer
  • Configurable payment schemes to monetize API usage
  • Monitor SLA compliance
  • Publish your own events and create your own dashboards

Pluggable, Extensible, and Themeable

  • All components are highly customizable through styling, theming, and code extensions
  • Developer portal is implemented with JavaScript/CSS/HTML5 for easy customization and theming
  • Responsive design for Developer portal
  • All publishing/portal functionality is exposed via a REST API, which allows to create your own portal or automate API deployment through DevOps
  • Pluggable to third-party analytics systems and billing systems
  • Pluggable to existing user repositories including Microsoft Active Directory, LDAP, databases, or Apache Cassandra
  • Components usable separately: developer portal can be used to catalog APIs deployed in third-party gateways

Easily Deployable in Your Enterprise

  • Role-based access control for managing users and their authorization levels
  • Developer portal can be deployed in DMZ for external access with publisher inside the firewall for private control
  • Different user stores for developer-focused portal and internal operations in publisher
  • Integrates with enterprise identity systems including LDAP and Microsoft Active Directory
  • Gateway can be deployed in DMZ with controlled access to WSO2 Identity Server (for authentication/authorization) and governance database behind firewall

WSO2 Platform Multi-tenancy Support

  • Run a single instance and provide API management to multiple customers, each in their own domain
  • Share APIs between different departments in a large enterprise

WSO2 Advantages

  • Only production-ready, 100% open source API management solution available today, on-premise and in the cloud
  • A single API gateway node handles more than 100 million requests/day. eBay, which uses WSO2 solutions, handles billions/day!
  • Developer’s portal can use social logins such as Facebook, Google Apps, and many others
  • Supports federated identity across products such as SalesForce™ or Google Apps
  • Extensible via server-side public REST APIs
  • Recognized as a Strong Performer for API Management Solutions by Forrester in 2014