Endpoint Health Monitor

Endpoint Health Monitor keeps your Gateway stable by automatically detecting unhealthy RPC endpoints and removing them from rotation before they cause failures. Instead of waiting for a node to go fully offline, the monitor continuously evaluates real-time behavior such as latency spikes, timeouts, and incomplete responses to ensure only healthy providers receive traffic.

With this PowerUp enabled, a single failing or degraded RPC provider cannot disrupt your application — ensuring consistent uptime, reliability, and resilience under all conditions.

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Always safe: Endpoints are removed automatically when degraded, and re-added automatically when they recover no manual intervention required.

How to enable Endpoint Health Monitor?

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Open your custom gateway

Open the custom gateway where you want to enable the Endpoint Health Monitor

Supported Networks

Endpoint Health Monitor is available for all chain gateways that are supported by Tatum, you can check all the supported chains on our dashboard here.

How Endpoint Health Monitor Works

Each endpoint is continuously evaluated across several reliability dimensions:

Example — Gateway With Two Endpoints

This protects applications from intermittent provider failures — which are the most common cause of RPC downtime.

Request Usage

No request changes or parameters are required. Endpoint exclusion and reinstatement happen transparently.

curl -X POST https://ethereum-mainnet.gateway.tatum.io \
  -H "x-api-key: {YOUR_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
        "id": 1,
        "jsonrpc": "2.0",
        "method": "eth_blockNumber",
        "params": []
      }'

Even if one of your providers is failing — this request will always succeed by avoiding unhealthy nodes.

FAQs — Endpoint Health Monitor