Best WSS Endpoints for Optimism (2025)

Testing

Use our WSS Latency Test across multiple time windows and compare both median and spread.

Why it matters

Optimism batches transactions via a centralized sequencer. If your endpoint lags, you will miss opportunities and misprice bundles. Consistency beats raw speed—favor providers with predictable latency and clean throttling policies.

Benchmark workflow

1. Select two providers (primary + backup) and run 60-second tests morning, afternoon, and evening.
2. Record latency statistics, packet loss, and any throttling responses.
3. Store the numbers in Ops Pulse and annotate why you would rotate.

Rotation triggers

• Variance > 50 ms for five consecutive minutes.
• More than three throttling events in a rolling 10-minute window.
• Sequencer backlog warnings that correlate with endpoint lag.

Integrate with FRB

• Connect endpoint metrics to FRB’s refund guard so the agent can pause automatically.
• Sync weekly summaries to the Knowledge Base and link them from the Optimism guide.

Example rotation worksheet

Update the worksheet each week and attach it to your ops ticket so everyone knows which endpoint is “hot”.

FAQ

Can I rely on a single provider?
No. Always have a standby online; Optimism upgrades sometimes affect entire clouds.

How do I test failover?
Switch to standby for one block window each week to ensure credentials and monitors behave.

Do I need region diversity?
Yes—run one provider near your infra and another in a different region to hedge outages.

What if latency spikes during an L1 calldata surge?
Downshift bundle size, tighten refund guard, and consider pausing new strategies until the backlog clears. Share the decision (plus latency screenshots) in your ops log.