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Apiman

Flexible Open Source API Management·apiman.io

Apiman is a flexible open source API Management platform aimed at enterprise users. It combines a rich API design and configuration layer with a fast, modular runtime, and can be customised via simple Java plugins. It covers the full API Management lifecycle, including governance, security, documentation, monitoring, and a developer portal. Apiman Gateways are decoupled from the Apiman Manager so gateways keep running even if the manager goes down.

What it's for

Offer existing APIs to external consumers securelyCentralised location to discover and govern APIsLimit the number of requests consumers of your APIs can make within a given time period (Throttling & Quotas)Add authentication and IP filtering capabilities in a central location (Centralised Security)Get metrics for all your APIs to see what's popular or charge consumers for usage (Billing & Metrics)

Features 20

API documentation via OpenAPI v2/v3 or Swagger schemas
API lifecycle management: draft, versioning, multiple environments, publication, retirement
API Registry for importing external APIs
API search/discovery with wildcard patterns
API signup approval workflow with notifications
Client subscription management with API keys
Custom Java policy and component plugins with schema-based policy UI
Event publishing via outbox table for CDC/Kafka integration
Export/Import of Manager configuration as JSON
Hybrid RBAC-ABAC roles and permissions system
In-browser and templated, i18n email notifications
Monitoring with metrics emitters (Elasticsearch, Prometheus, InfluxDB, JDBC)
Multiple versioned Plans offering different service levels for the same API
Multitenancy via 'organizations'
Policy-based traffic governance with ordered policy chains
Post-hoc billing/monetization via metrics
Public/keyless API exposure
Scalable, independently-running API Gateways
Standalone API Manager decoupled from API Gateways
Standalone Developer Portal built in Angular

At a glance

free tieropen sourceself-hostableAPI

DeploymentSelf-hosted

PlatformsWeb, Windows, macOS, Linux

Forenterprise users

CompanyBlack Parrot Labs

Integrations

KeycloakElasticsearchPrometheusInfluxDBJDBCKafkaDebeziumKibanaGrafana

Resources

Pricing

Apiman itself is free and open source (Apache 2.0). Black Parrot Labs offers comprehensive long-term enterprise support for Apiman, but pricing is not publicly listed.