Feature

High Availability

Redundant, fault-tolerant architecture.

41 providers 148 APIs 20 declared variants

The service is built with redundancy, failover, and no single point of failure across zones. Distinct from an SLA — this is the engineering behind the promise.

41 API providers on the APIs.io network offer high availability. The highest-rated are Acronis, Oracle Cloud Infrastructure, Amazon Neptune, Fireblocks, Redis.

Providers

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

Exemplar 3 Complete, well-documented, and agent-ready
Strong 9 Solid coverage with minor gaps
Developing 13 Usable, with meaningful gaps to close
Amazon SimpleDBAmazon SimpleDB is a highly available NoSQL data store that offloads the work of database administration. I...1 published contract52.1BifrostBifrost is a high-performance open-source AI gateway that unifies access to 20+ AI providers through a sing...4 APIs51.5Amazon DMSAWS Database Migration Service (AWS DMS) helps you migrate databases to AWS quickly and securely. The sourc...2 published contracts49.6Amazon MQAmazon MQ is a managed message broker service for Apache ActiveMQ and RabbitMQ that makes it easy to set up...2 published contracts48.5Azure Load BalancerAzure Load Balancer is a high-performance, low-latency layer-4 load balancing service for distributing inbo...2 APIs48.4Microsoft Windows ServerAPIs and integration points for Microsoft Windows Server operating system including management, networking,...1 published contract48.1Triton OneTriton One is a high-performance Solana RPC and blockchain infrastructure provider operating globally distr...3 published contracts46.4AmTrust Financial ServicesAmTrust Financial Services is a multinational specialty property and casualty insurer focused on small to m...9 published contracts46.0Amazon CloudHSMAWS CloudHSM is a cloud-based hardware security module (HSM) that enables you to manage cryptographic keys ...1 API42.2ConductorConductor allows you to build a complex application using simple and granular tasks that do not need to be ...1 published contract41.9Apache TomcatApache Tomcat is an open-source implementation of the Java Servlet, JavaServer Pages (JSP), Java Expression...1 published contract40.3Veritas InfoScaleAPIs for Veritas InfoScale, an enterprise storage and availability management solution that provides high a...13 APIs40.0Apache NiFiApache NiFi is a dataflow management system designed to automate the flow of data between systems. It provi...1 published contract39.9
Thin 12 Limited public surface area
Apache HelixApache Helix is a generic cluster management framework for partitioned and replicated distributed resources...1 published contract38.5Apache CassandraApache Cassandra is a highly scalable, distributed open-source NoSQL database designed to handle massive am...1 published contract38.0AI GatewayAn API Evangelist landscape index of AI gateways — the LLM routers, prompt firewalls, model fallback proxie...1 published contract37.4Apache ActiveMQApache ActiveMQ is an open-source, high-performance message broker written in Java, developed by the Apache...4 APIs36.7Apache OozieApache Oozie is a workflow scheduler system for managing Apache Hadoop jobs. It enables users to define wor...1 published contract34.3Vert.xEclipse Vert.x is a toolkit for building reactive applications on the JVM, providing support for multiple l...7 APIs32.0AkriAkri is a CNCF Sandbox project that exposes heterogeneous leaf devices (such as IP cameras and USB devices)...1 API31.6Amazon Aurora DSQLAmazon Aurora DSQL is a distributed SQL database service optimized for transactional workloads. It provides...1 published contract30.0Apache FlinkApache Flink is a framework and distributed processing engine for stateful computations over unbounded and ...1 published contract29.5Apache GiraphApache Giraph is an iterative graph processing system built for high scalability on Apache Hadoop. It is mo...1 published contract29.1Apache MahoutApache Mahout is an open-source framework for building scalable machine learning applications. The project ...2 APIs27.9Apache MesosApache Mesos is a retired cluster manager (now in the Apache Attic) that provided efficient resource isolat...2 APIs27.2
Emerging 4 Early or largely undocumented

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.

Automatic FailoverBidirectional replication for active-active architecturesClusteringClustering AlgorithmsDisaster RecoveryDisaster Recovery APIFailover ClusteringFallback and FailoverFault ToleranceGlobal bare-metal node network across 10+ tier-one data centers with GeoDNS routing and auto-failoverHigh AvailabilityHigh Availability ClusteringHigh Availability PortsHigh Availability StorageMulti-AZ ReplicationMulti-region active-active replication for global distributionPro from $0.014/hr ($200/mo min): dedicated, multi-region active-activeRecovery Utility and Key Recovery Tool for disaster recoverySegregated workspaces, audit logs, redundancy and disaster recoveryWorkspace Failover

Scroll for all 20

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.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for features

3 MCP tools reach this
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
Search the catalog
curl "https://apis.io/api/v1/search?q=high-availability&limit=10"
Everything under a tag
curl "https://apis.io/api/v1/tags/high-availability"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.